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Merge branch 'master' into control_execution_period_of_clearOldTemporaryDirectories

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mergify[bot] 2021-08-06 16:16:22 +00:00 committed by GitHub
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1454 changed files with 25960 additions and 13326 deletions
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4
.github/ISSUE_TEMPLATE/10_question.md vendored
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@ -7,6 +7,6 @@ assignees: ''
---
Make sure to check documentation https://clickhouse.yandex/docs/en/ first. If the question is concise and probably has a short answer, asking it in Telegram chat https://telegram.me/clickhouse_en is probably the fastest way to find the answer. For more complicated questions, consider asking them on StackOverflow with "clickhouse" tag https://stackoverflow.com/questions/tagged/clickhouse
> Make sure to check documentation https://clickhouse.yandex/docs/en/ first. If the question is concise and probably has a short answer, asking it in Telegram chat https://telegram.me/clickhouse_en is probably the fastest way to find the answer. For more complicated questions, consider asking them on StackOverflow with "clickhouse" tag https://stackoverflow.com/questions/tagged/clickhouse
If you still prefer GitHub issues, remove all this text and ask your question here.
> If you still prefer GitHub issues, remove all this text and ask your question here.

14
.github/ISSUE_TEMPLATE/20_feature-request.md vendored
View File

@ -7,16 +7,20 @@ assignees: ''
---
(you don't have to strictly follow this form)
> (you don't have to strictly follow this form)
**Use case**
A clear and concise description of what is the intended usage scenario is.
> A clear and concise description of what is the intended usage scenario is.
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
> A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
> A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
> Add any other context or screenshots about the feature request here.

12
.github/ISSUE_TEMPLATE/40_bug-report.md vendored
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@ -7,11 +7,11 @@ assignees: ''
---
You have to provide the following information whenever possible.
> You have to provide the following information whenever possible.
**Describe the bug**
A clear and concise description of what works not as it is supposed to.
> A clear and concise description of what works not as it is supposed to.
**Does it reproduce on recent release?**
@ -19,7 +19,7 @@ A clear and concise description of what works not as it is supposed to.
**Enable crash reporting**
If possible, change "enabled" to true in "send_crash_reports" section in `config.xml`:
> If possible, change "enabled" to true in "send_crash_reports" section in `config.xml`:
```
<send_crash_reports>
@ -39,12 +39,12 @@ If possible, change "enabled" to true in "send_crash_reports" section in `config
**Expected behavior**
A clear and concise description of what you expected to happen.
> A clear and concise description of what you expected to happen.
**Error message and/or stacktrace**
If applicable, add screenshots to help explain your problem.
> If applicable, add screenshots to help explain your problem.
**Additional context**
Add any other context about the problem here.
> Add any other context about the problem here.

5
.github/ISSUE_TEMPLATE/50_build-issue.md vendored
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@ -7,10 +7,11 @@ assignees: ''
---
Make sure that `git diff` result is empty and you've just pulled fresh master. Try cleaning up cmake cache. Just in case, official build instructions are published here: https://clickhouse.yandex/docs/en/development/build/
> Make sure that `git diff` result is empty and you've just pulled fresh master. Try cleaning up cmake cache. Just in case, official build instructions are published here: https://clickhouse.yandex/docs/en/development/build/
**Operating system**
OS kind or distribution, specific version/release, non-standard kernel if any. If you are trying to build inside virtual machine, please mention it too.
> OS kind or distribution, specific version/release, non-standard kernel if any. If you are trying to build inside virtual machine, please mention it too.
**Cmake version**

12
.github/PULL_REQUEST_TEMPLATE.md vendored
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@ -2,28 +2,26 @@ I hereby agree to the terms of the CLA available at: https://yandex.ru/legal/cla
Changelog category (leave one):
- New Feature
- Bug Fix
- Improvement
- Bug Fix
- Performance Improvement
- Backward Incompatible Change
- Build/Testing/Packaging Improvement
- Documentation (changelog entry is not required)
- Other
- Not for changelog (changelog entry is not required)
Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
...
Detailed description / Documentation draft:
...
By adding documentation, you'll allow users to try your new feature immediately, not when someone else will have time to document it later. Documentation is necessary for all features that affect user experience in any way. You can add brief documentation draft above, or add documentation right into your patch as Markdown files in [docs](https://github.com/ClickHouse/ClickHouse/tree/master/docs) folder.
If you are doing this for the first time, it's recommended to read the lightweight [Contributing to ClickHouse Documentation](https://github.com/ClickHouse/ClickHouse/tree/master/docs/README.md) guide first.
> By adding documentation, you'll allow users to try your new feature immediately, not when someone else will have time to document it later. Documentation is necessary for all features that affect user experience in any way. You can add brief documentation draft above, or add documentation right into your patch as Markdown files in [docs](https://github.com/ClickHouse/ClickHouse/tree/master/docs) folder.
> If you are doing this for the first time, it's recommended to read the lightweight [Contributing to ClickHouse Documentation](https://github.com/ClickHouse/ClickHouse/tree/master/docs/README.md) guide first.
Information about CI checks: https://clickhouse.tech/docs/en/development/continuous-integration/
> Information about CI checks: https://clickhouse.tech/docs/en/development/continuous-integration/

9
.gitmodules vendored
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@ -225,6 +225,15 @@
[submodule "contrib/yaml-cpp"]
path = contrib/yaml-cpp
url = https://github.com/ClickHouse-Extras/yaml-cpp.git
[submodule "contrib/libstemmer_c"]
path = contrib/libstemmer_c
url = https://github.com/ClickHouse-Extras/libstemmer_c.git
[submodule "contrib/wordnet-blast"]
path = contrib/wordnet-blast
url = https://github.com/ClickHouse-Extras/wordnet-blast.git
[submodule "contrib/lemmagen-c"]
path = contrib/lemmagen-c
url = https://github.com/ClickHouse-Extras/lemmagen-c.git
[submodule "contrib/libpqxx"]
path = contrib/libpqxx
url = https://github.com/ClickHouse-Extras/libpqxx.git

1
CMakeLists.txt
View File

@ -542,6 +542,7 @@ include (cmake/find/libpqxx.cmake)
include (cmake/find/nuraft.cmake)
include (cmake/find/yaml-cpp.cmake)
include (cmake/find/s2geometry.cmake)
include (cmake/find/nlp.cmake)
if(NOT USE_INTERNAL_PARQUET_LIBRARY)
set (ENABLE_ORC OFF CACHE INTERNAL "")

4
base/common/ReplxxLineReader.cpp
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@ -69,7 +69,7 @@ void convertHistoryFile(const std::string & path, replxx::Replxx & rx)
}
std::string line;
if (!getline(in, line).good())
if (getline(in, line).bad())
{
rx.print("Cannot read from %s (for conversion): %s\n",
path.c_str(), errnoToString(errno).c_str());
@ -78,7 +78,7 @@ void convertHistoryFile(const std::string & path, replxx::Replxx & rx)
/// This is the marker of the date, no need to convert.
static char const REPLXX_TIMESTAMP_PATTERN[] = "### dddd-dd-dd dd:dd:dd.ddd";
if (line.starts_with("### ") && line.size() == strlen(REPLXX_TIMESTAMP_PATTERN))
if (line.empty() || (line.starts_with("### ") && line.size() == strlen(REPLXX_TIMESTAMP_PATTERN)))
{
return;
}

24
base/common/removeDuplicates.h Normal file
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@ -0,0 +1,24 @@
#pragma once
#include <vector>
/// Removes duplicates from a container without changing the order of its elements.
/// Keeps the last occurrence of each element.
/// Should NOT be used for containers with a lot of elements because it has O(N^2) complexity.
template <typename T>
void removeDuplicatesKeepLast(std::vector<T> & vec)
{
auto begin = vec.begin();
auto end = vec.end();
auto new_begin = end;
for (auto current = end; current != begin;)
{
--current;
if (std::find(new_begin, end, *current) == end)
{
--new_begin;
if (new_begin != current)
*new_begin = *current;
}
}
vec.erase(begin, new_begin);
}

19
base/daemon/BaseDaemon.cpp
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@ -259,10 +259,25 @@ private:
Poco::Logger * log;
BaseDaemon & daemon;
void onTerminate(const std::string & message, UInt32 thread_num) const
void onTerminate(std::string_view message, UInt32 thread_num) const
{
size_t pos = message.find('\n');
LOG_FATAL(log, "(version {}{}, {}) (from thread {}) {}",
VERSION_STRING, VERSION_OFFICIAL, daemon.build_id_info, thread_num, message);
VERSION_STRING, VERSION_OFFICIAL, daemon.build_id_info, thread_num, message.substr(0, pos));
/// Print trace from std::terminate exception line-by-line to make it easy for grep.
while (pos != std::string_view::npos)
{
++pos;
size_t next_pos = message.find('\n', pos);
size_t size = next_pos;
if (next_pos != std::string_view::npos)
size = next_pos - pos;
LOG_FATAL(log, "{}", message.substr(pos, size));
pos = next_pos;
}
}
void onFault(

13
benchmark/clickhouse/benchmark-new.sh
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@ -4,13 +4,24 @@ QUERIES_FILE="queries.sql"
TABLE=$1
TRIES=3
if [ -x ./clickhouse ]
then
CLICKHOUSE_CLIENT="./clickhouse client"
elif command -v clickhouse-client >/dev/null 2>&1
then
CLICKHOUSE_CLIENT="clickhouse-client"
else
echo "clickhouse-client is not found"
exit 1
fi
cat "$QUERIES_FILE" | sed "s/{table}/${TABLE}/g" | while read query; do
sync
echo 3 | sudo tee /proc/sys/vm/drop_caches >/dev/null
echo -n "["
for i in $(seq 1 $TRIES); do
RES=$(clickhouse-client --time --format=Null --query="$query" 2>&1)
RES=$(${CLICKHOUSE_CLIENT} --time --format=Null --max_memory_usage=100G --query="$query" 2>&1)
[[ "$?" == "0" ]] && echo -n "${RES}" || echo -n "null"
[[ "$i" != $TRIES ]] && echo -n ", "
done

6
benchmark/hardware.sh
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@ -11,8 +11,8 @@ DATASET="${TABLE}_v1.tar.xz"
QUERIES_FILE="queries.sql"
TRIES=3
AMD64_BIN_URL="https://clickhouse-builds.s3.yandex.net/0/e29c4c3cc47ab2a6c4516486c1b77d57e7d42643/clickhouse_build_check/gcc-10_relwithdebuginfo_none_bundled_unsplitted_disable_False_binary/clickhouse"
AARCH64_BIN_URL="https://clickhouse-builds.s3.yandex.net/0/e29c4c3cc47ab2a6c4516486c1b77d57e7d42643/clickhouse_special_build_check/clang-10-aarch64_relwithdebuginfo_none_bundled_unsplitted_disable_False_binary/clickhouse"
AMD64_BIN_URL="https://builds.clickhouse.tech/master/amd64/clickhouse"
AARCH64_BIN_URL="https://builds.clickhouse.tech/master/aarch64/clickhouse"
# Note: on older Ubuntu versions, 'axel' does not support IPv6. If you are using IPv6-only servers on very old Ubuntu, just don't install 'axel'.
@ -89,7 +89,7 @@ cat "$QUERIES_FILE" | sed "s/{table}/${TABLE}/g" | while read query; do
echo -n "["
for i in $(seq 1 $TRIES); do
RES=$(./clickhouse client --max_memory_usage 100000000000 --time --format=Null --query="$query" 2>&1 ||:)
RES=$(./clickhouse client --max_memory_usage 100G --time --format=Null --query="$query" 2>&1 ||:)
[[ "$?" == "0" ]] && echo -n "${RES}" || echo -n "null"
[[ "$i" != $TRIES ]] && echo -n ", "
done

32
cmake/find/nlp.cmake Normal file
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@ -0,0 +1,32 @@
option(ENABLE_NLP "Enable NLP functions support" ${ENABLE_LIBRARIES})
if (NOT ENABLE_NLP)
message (STATUS "NLP functions disabled")
return()
endif()
if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/libstemmer_c/Makefile")
message (WARNING "submodule contrib/libstemmer_c is missing. to fix try run: \n git submodule update --init --recursive")
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find internal libstemmer_c library, NLP functions will be disabled")
set (USE_NLP 0)
return()
endif ()
if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/wordnet-blast/CMakeLists.txt")
message (WARNING "submodule contrib/wordnet-blast is missing. to fix try run: \n git submodule update --init --recursive")
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find internal wordnet-blast library, NLP functions will be disabled")
set (USE_NLP 0)
return()
endif ()
if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/lemmagen-c/README.md")
message (WARNING "submodule contrib/lemmagen-c is missing. to fix try run: \n git submodule update --init --recursive")
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find internal lemmagen-c library, NLP functions will be disabled")
set (USE_NLP 0)
return()
endif ()
set (USE_NLP 1)
message (STATUS "Using Libraries for NLP functions: contrib/wordnet-blast, contrib/libstemmer_c, contrib/lemmagen-c")

2
contrib/AMQP-CPP vendored

@ -1 +1 @@
Subproject commit 03781aaff0f10ef41f902b8cf865fe0067180c10
Subproject commit 1a6c51f4ac51ac56610fa95081bd2f349911375a

6
contrib/CMakeLists.txt vendored
View File

@ -328,6 +328,12 @@ endif()
add_subdirectory(fast_float)
if (USE_NLP)
add_subdirectory(libstemmer-c-cmake)
add_subdirectory(wordnet-blast-cmake)
add_subdirectory(lemmagen-c-cmake)
endif()
if (USE_SQLITE)
add_subdirectory(sqlite-cmake)
endif()

2
contrib/NuRaft vendored

@ -1 +1 @@
Subproject commit 976874b7aa7f422bf4ea595bb7d1166c617b1c26
Subproject commit 0ce9490093021c63564cca159571a8b27772ad48

3
contrib/amqpcpp-cmake/CMakeLists.txt
View File

@ -10,11 +10,12 @@ set (SRCS
"${LIBRARY_DIR}/src/deferredconsumer.cpp"
"${LIBRARY_DIR}/src/deferredextreceiver.cpp"
"${LIBRARY_DIR}/src/deferredget.cpp"
"${LIBRARY_DIR}/src/deferredpublisher.cpp"
"${LIBRARY_DIR}/src/deferredrecall.cpp"
"${LIBRARY_DIR}/src/deferredreceiver.cpp"
"${LIBRARY_DIR}/src/field.cpp"
"${LIBRARY_DIR}/src/flags.cpp"
"${LIBRARY_DIR}/src/linux_tcp/openssl.cpp"
"${LIBRARY_DIR}/src/linux_tcp/sslerrorprinter.cpp"
"${LIBRARY_DIR}/src/linux_tcp/tcpconnection.cpp"
"${LIBRARY_DIR}/src/inbuffer.cpp"
"${LIBRARY_DIR}/src/receivedframe.cpp"

2
contrib/arrow vendored

@ -1 +1 @@
Subproject commit debf751a129bdda9ff4d1e895e08957ff77000a1
Subproject commit 078e21bad344747b7656ef2d7a4f7410a0a303eb

19
contrib/arrow-cmake/CMakeLists.txt
View File

@ -194,9 +194,18 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/compute/cast.cc"
"${LIBRARY_DIR}/compute/exec.cc"
"${LIBRARY_DIR}/compute/function.cc"
"${LIBRARY_DIR}/compute/function_internal.cc"
"${LIBRARY_DIR}/compute/kernel.cc"
"${LIBRARY_DIR}/compute/registry.cc"
"${LIBRARY_DIR}/compute/exec/exec_plan.cc"
"${LIBRARY_DIR}/compute/exec/expression.cc"
"${LIBRARY_DIR}/compute/exec/key_compare.cc"
"${LIBRARY_DIR}/compute/exec/key_encode.cc"
"${LIBRARY_DIR}/compute/exec/key_hash.cc"
"${LIBRARY_DIR}/compute/exec/key_map.cc"
"${LIBRARY_DIR}/compute/exec/util.cc"
"${LIBRARY_DIR}/compute/kernels/aggregate_basic.cc"
"${LIBRARY_DIR}/compute/kernels/aggregate_mode.cc"
"${LIBRARY_DIR}/compute/kernels/aggregate_quantile.cc"
@ -207,6 +216,7 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/compute/kernels/scalar_arithmetic.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_boolean.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_cast_boolean.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_cast_dictionary.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_cast_internal.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_cast_nested.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_cast_numeric.cc"
@ -214,15 +224,18 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/compute/kernels/scalar_cast_temporal.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_compare.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_fill_null.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_if_else.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_nested.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_set_lookup.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_string.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_temporal.cc"
"${LIBRARY_DIR}/compute/kernels/scalar_validity.cc"
"${LIBRARY_DIR}/compute/kernels/util_internal.cc"
"${LIBRARY_DIR}/compute/kernels/vector_hash.cc"
"${LIBRARY_DIR}/compute/kernels/vector_nested.cc"
"${LIBRARY_DIR}/compute/kernels/vector_replace.cc"
"${LIBRARY_DIR}/compute/kernels/vector_selection.cc"
"${LIBRARY_DIR}/compute/kernels/vector_sort.cc"
"${LIBRARY_DIR}/compute/kernels/util_internal.cc"
"${LIBRARY_DIR}/csv/chunker.cc"
"${LIBRARY_DIR}/csv/column_builder.cc"
@ -231,6 +244,7 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/csv/options.cc"
"${LIBRARY_DIR}/csv/parser.cc"
"${LIBRARY_DIR}/csv/reader.cc"
"${LIBRARY_DIR}/csv/writer.cc"
"${LIBRARY_DIR}/ipc/dictionary.cc"
"${LIBRARY_DIR}/ipc/feather.cc"
@ -247,6 +261,7 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/io/interfaces.cc"
"${LIBRARY_DIR}/io/memory.cc"
"${LIBRARY_DIR}/io/slow.cc"
"${LIBRARY_DIR}/io/stdio.cc"
"${LIBRARY_DIR}/io/transform.cc"
"${LIBRARY_DIR}/tensor/coo_converter.cc"
@ -257,9 +272,9 @@ set(ARROW_SRCS
"${LIBRARY_DIR}/util/bit_block_counter.cc"
"${LIBRARY_DIR}/util/bit_run_reader.cc"
"${LIBRARY_DIR}/util/bit_util.cc"
"${LIBRARY_DIR}/util/bitmap.cc"
"${LIBRARY_DIR}/util/bitmap_builders.cc"
"${LIBRARY_DIR}/util/bitmap_ops.cc"
"${LIBRARY_DIR}/util/bitmap.cc"
"${LIBRARY_DIR}/util/bpacking.cc"
"${LIBRARY_DIR}/util/cancel.cc"
"${LIBRARY_DIR}/util/compression.cc"

2
contrib/boost vendored

@ -1 +1 @@
Subproject commit 1ccbb5a522a571ce83b606dbc2e1011c42ecccfb
Subproject commit 9cf09dbfd55a5c6202dedbdf40781a51b02c2675

19
contrib/boost-cmake/CMakeLists.txt
View File

@ -13,11 +13,12 @@ if (NOT USE_INTERNAL_BOOST_LIBRARY)
regex
context
coroutine
graph
)
if(Boost_INCLUDE_DIR AND Boost_FILESYSTEM_LIBRARY AND Boost_FILESYSTEM_LIBRARY AND
Boost_PROGRAM_OPTIONS_LIBRARY AND Boost_REGEX_LIBRARY AND Boost_SYSTEM_LIBRARY AND Boost_CONTEXT_LIBRARY AND
Boost_COROUTINE_LIBRARY)
Boost_COROUTINE_LIBRARY AND Boost_GRAPH_LIBRARY)
set(EXTERNAL_BOOST_FOUND 1)
@ -32,6 +33,7 @@ if (NOT USE_INTERNAL_BOOST_LIBRARY)
add_library (_boost_system INTERFACE)
add_library (_boost_context INTERFACE)
add_library (_boost_coroutine INTERFACE)
add_library (_boost_graph INTERFACE)
target_link_libraries (_boost_filesystem INTERFACE ${Boost_FILESYSTEM_LIBRARY})
target_link_libraries (_boost_iostreams INTERFACE ${Boost_IOSTREAMS_LIBRARY})
@ -40,6 +42,7 @@ if (NOT USE_INTERNAL_BOOST_LIBRARY)
target_link_libraries (_boost_system INTERFACE ${Boost_SYSTEM_LIBRARY})
target_link_libraries (_boost_context INTERFACE ${Boost_CONTEXT_LIBRARY})
target_link_libraries (_boost_coroutine INTERFACE ${Boost_COROUTINE_LIBRARY})
target_link_libraries (_boost_graph INTERFACE ${Boost_GRAPH_LIBRARY})
add_library (boost::filesystem ALIAS _boost_filesystem)
add_library (boost::iostreams ALIAS _boost_iostreams)
@ -48,6 +51,7 @@ if (NOT USE_INTERNAL_BOOST_LIBRARY)
add_library (boost::system ALIAS _boost_system)
add_library (boost::context ALIAS _boost_context)
add_library (boost::coroutine ALIAS _boost_coroutine)
add_library (boost::graph ALIAS _boost_graph)
else()
set(EXTERNAL_BOOST_FOUND 0)
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find system boost")
@ -221,4 +225,17 @@ if (NOT EXTERNAL_BOOST_FOUND)
add_library (boost::coroutine ALIAS _boost_coroutine)
target_include_directories (_boost_coroutine PRIVATE ${LIBRARY_DIR})
target_link_libraries(_boost_coroutine PRIVATE _boost_context)
# graph
set (SRCS_GRAPH
"${LIBRARY_DIR}/libs/graph/src/graphml.cpp"
"${LIBRARY_DIR}/libs/graph/src/read_graphviz_new.cpp"
)
add_library (_boost_graph ${SRCS_GRAPH})
add_library (boost::graph ALIAS _boost_graph)
target_include_directories (_boost_graph PRIVATE ${LIBRARY_DIR})
target_link_libraries(_boost_graph PRIVATE _boost_regex)
endif ()

1
contrib/lemmagen-c vendored Submodule

@ -0,0 +1 @@
Subproject commit 59537bdcf57bbed17913292cb4502d15657231f1

9
contrib/lemmagen-c-cmake/CMakeLists.txt Normal file
View File

@ -0,0 +1,9 @@
set(LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/lemmagen-c")
set(LEMMAGEN_INCLUDE_DIR "${LIBRARY_DIR}/include")
set(SRCS
"${LIBRARY_DIR}/src/RdrLemmatizer.cpp"
)
add_library(lemmagen STATIC ${SRCS})
target_include_directories(lemmagen PUBLIC "${LEMMAGEN_INCLUDE_DIR}")

31
contrib/libstemmer-c-cmake/CMakeLists.txt Normal file
View File

@ -0,0 +1,31 @@
set(LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/libstemmer_c")
set(STEMMER_INCLUDE_DIR "${LIBRARY_DIR}/include")
FILE ( READ "${LIBRARY_DIR}/mkinc.mak" _CONTENT )
# replace '\ ' into one big line
STRING ( REGEX REPLACE "\\\\\n " " ${LIBRARY_DIR}/" _CONTENT "${_CONTENT}" )
# escape ';' (if any)
STRING ( REGEX REPLACE ";" "\\\\;" _CONTENT "${_CONTENT}" )
# now replace lf into ';' (it makes list from the line)
STRING ( REGEX REPLACE "\n" ";" _CONTENT "${_CONTENT}" )
FOREACH ( LINE ${_CONTENT} )
# skip comments (beginning with #)
IF ( NOT "${LINE}" MATCHES "^#.*" )
# parse 'name=value1 value2..." - extract the 'name' part
STRING ( REGEX REPLACE "=.*$" "" _NAME "${LINE}" )
# extract the list of values part
STRING ( REGEX REPLACE "^.*=" "" _LIST "${LINE}" )
# replace (multi)spaces into ';' (it makes list from the line)
STRING ( REGEX REPLACE " +" ";" _LIST "${_LIST}" )
# finally get our two variables
IF ( "${_NAME}" MATCHES "snowball_sources" )
SET ( _SOURCES "${_LIST}" )
ELSEIF ( "${_NAME}" MATCHES "snowball_headers" )
SET ( _HEADERS "${_LIST}" )
ENDIF ()
endif ()
endforeach ()
# all the sources parsed. Now just add the lib
add_library ( stemmer STATIC ${_SOURCES} ${_HEADERS} )
target_include_directories (stemmer PUBLIC "${STEMMER_INCLUDE_DIR}")

1
contrib/libstemmer_c vendored Submodule

@ -0,0 +1 @@
Subproject commit c753054304d87daf460057c1a649c482aa094835

1
contrib/nuraft-cmake/CMakeLists.txt
View File

@ -22,6 +22,7 @@ set(SRCS
"${LIBRARY_DIR}/src/launcher.cxx"
"${LIBRARY_DIR}/src/srv_config.cxx"
"${LIBRARY_DIR}/src/snapshot_sync_req.cxx"
"${LIBRARY_DIR}/src/snapshot_sync_ctx.cxx"
"${LIBRARY_DIR}/src/handle_timeout.cxx"
"${LIBRARY_DIR}/src/handle_append_entries.cxx"
"${LIBRARY_DIR}/src/cluster_config.cxx"

2
contrib/poco vendored

@ -1 +1 @@
Subproject commit 5994506908028612869fee627d68d8212dfe7c1e
Subproject commit 7351c4691b5d401f59e3959adfc5b4fa263b32da

2
contrib/protobuf vendored

@ -1 +1 @@
Subproject commit 73b12814204ad9068ba352914d0dc244648b48ee
Subproject commit 75601841d172c73ae6bf4ce8121f42b875cdbabd

2
contrib/rocksdb vendored

@ -1 +1 @@
Subproject commit 07c77549a20b63ff6981b400085eba36bb5c80c4
Subproject commit b6480c69bf3ab6e298e0d019a07fd4f69029b26a

558
contrib/rocksdb-cmake/CMakeLists.txt
View File

@ -70,11 +70,6 @@ else()
endif()
endif()
set(BUILD_VERSION_CC rocksdb_build_version.cc)
add_library(rocksdb_build_version OBJECT ${BUILD_VERSION_CC})
target_include_directories(rocksdb_build_version PRIVATE "${ROCKSDB_SOURCE_DIR}/util")
include(CheckCCompilerFlag)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
CHECK_C_COMPILER_FLAG("-mcpu=power9" HAS_POWER9)
@ -243,272 +238,293 @@ find_package(Threads REQUIRED)
# Main library source code
set(SOURCES
"${ROCKSDB_SOURCE_DIR}/cache/cache.cc"
"${ROCKSDB_SOURCE_DIR}/cache/clock_cache.cc"
"${ROCKSDB_SOURCE_DIR}/cache/lru_cache.cc"
"${ROCKSDB_SOURCE_DIR}/cache/sharded_cache.cc"
"${ROCKSDB_SOURCE_DIR}/db/arena_wrapped_db_iter.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_addition.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_builder.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_cache.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_garbage.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_meta.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_reader.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_format.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_sequential_reader.cc"
"${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_writer.cc"
"${ROCKSDB_SOURCE_DIR}/db/builder.cc"
"${ROCKSDB_SOURCE_DIR}/db/c.cc"
"${ROCKSDB_SOURCE_DIR}/db/column_family.cc"
"${ROCKSDB_SOURCE_DIR}/db/compacted_db_impl.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_iterator.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_job.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker_fifo.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker_level.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker_universal.cc"
"${ROCKSDB_SOURCE_DIR}/db/compaction/sst_partitioner.cc"
"${ROCKSDB_SOURCE_DIR}/db/convenience.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_filesnapshot.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_write.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_compaction_flush.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_files.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_open.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_debug.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_experimental.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_readonly.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_secondary.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_info_dumper.cc"
"${ROCKSDB_SOURCE_DIR}/db/db_iter.cc"
"${ROCKSDB_SOURCE_DIR}/db/dbformat.cc"
"${ROCKSDB_SOURCE_DIR}/db/error_handler.cc"
"${ROCKSDB_SOURCE_DIR}/db/event_helpers.cc"
"${ROCKSDB_SOURCE_DIR}/db/experimental.cc"
"${ROCKSDB_SOURCE_DIR}/db/external_sst_file_ingestion_job.cc"
"${ROCKSDB_SOURCE_DIR}/db/file_indexer.cc"
"${ROCKSDB_SOURCE_DIR}/db/flush_job.cc"
"${ROCKSDB_SOURCE_DIR}/db/flush_scheduler.cc"
"${ROCKSDB_SOURCE_DIR}/db/forward_iterator.cc"
"${ROCKSDB_SOURCE_DIR}/db/import_column_family_job.cc"
"${ROCKSDB_SOURCE_DIR}/db/internal_stats.cc"
"${ROCKSDB_SOURCE_DIR}/db/logs_with_prep_tracker.cc"
"${ROCKSDB_SOURCE_DIR}/db/log_reader.cc"
"${ROCKSDB_SOURCE_DIR}/db/log_writer.cc"
"${ROCKSDB_SOURCE_DIR}/db/malloc_stats.cc"
"${ROCKSDB_SOURCE_DIR}/db/memtable.cc"
"${ROCKSDB_SOURCE_DIR}/db/memtable_list.cc"
"${ROCKSDB_SOURCE_DIR}/db/merge_helper.cc"
"${ROCKSDB_SOURCE_DIR}/db/merge_operator.cc"
"${ROCKSDB_SOURCE_DIR}/db/output_validator.cc"
"${ROCKSDB_SOURCE_DIR}/db/periodic_work_scheduler.cc"
"${ROCKSDB_SOURCE_DIR}/db/range_del_aggregator.cc"
"${ROCKSDB_SOURCE_DIR}/db/range_tombstone_fragmenter.cc"
"${ROCKSDB_SOURCE_DIR}/db/repair.cc"
"${ROCKSDB_SOURCE_DIR}/db/snapshot_impl.cc"
"${ROCKSDB_SOURCE_DIR}/db/table_cache.cc"
"${ROCKSDB_SOURCE_DIR}/db/table_properties_collector.cc"
"${ROCKSDB_SOURCE_DIR}/db/transaction_log_impl.cc"
"${ROCKSDB_SOURCE_DIR}/db/trim_history_scheduler.cc"
"${ROCKSDB_SOURCE_DIR}/db/version_builder.cc"
"${ROCKSDB_SOURCE_DIR}/db/version_edit.cc"
"${ROCKSDB_SOURCE_DIR}/db/version_edit_handler.cc"
"${ROCKSDB_SOURCE_DIR}/db/version_set.cc"
"${ROCKSDB_SOURCE_DIR}/db/wal_edit.cc"
"${ROCKSDB_SOURCE_DIR}/db/wal_manager.cc"
"${ROCKSDB_SOURCE_DIR}/db/write_batch.cc"
"${ROCKSDB_SOURCE_DIR}/db/write_batch_base.cc"
"${ROCKSDB_SOURCE_DIR}/db/write_controller.cc"
"${ROCKSDB_SOURCE_DIR}/db/write_thread.cc"
"${ROCKSDB_SOURCE_DIR}/env/env.cc"
"${ROCKSDB_SOURCE_DIR}/env/env_chroot.cc"
"${ROCKSDB_SOURCE_DIR}/env/env_encryption.cc"
"${ROCKSDB_SOURCE_DIR}/env/env_hdfs.cc"
"${ROCKSDB_SOURCE_DIR}/env/file_system.cc"
"${ROCKSDB_SOURCE_DIR}/env/file_system_tracer.cc"
"${ROCKSDB_SOURCE_DIR}/env/mock_env.cc"
"${ROCKSDB_SOURCE_DIR}/file/delete_scheduler.cc"
"${ROCKSDB_SOURCE_DIR}/file/file_prefetch_buffer.cc"
"${ROCKSDB_SOURCE_DIR}/file/file_util.cc"
"${ROCKSDB_SOURCE_DIR}/file/filename.cc"
"${ROCKSDB_SOURCE_DIR}/file/random_access_file_reader.cc"
"${ROCKSDB_SOURCE_DIR}/file/read_write_util.cc"
"${ROCKSDB_SOURCE_DIR}/file/readahead_raf.cc"
"${ROCKSDB_SOURCE_DIR}/file/sequence_file_reader.cc"
"${ROCKSDB_SOURCE_DIR}/file/sst_file_manager_impl.cc"
"${ROCKSDB_SOURCE_DIR}/file/writable_file_writer.cc"
"${ROCKSDB_SOURCE_DIR}/logging/auto_roll_logger.cc"
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"${ROCKSDB_SOURCE_DIR}/memory/jemalloc_nodump_allocator.cc"
"${ROCKSDB_SOURCE_DIR}/memory/memkind_kmem_allocator.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/alloc_tracker.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/hash_linklist_rep.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/hash_skiplist_rep.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/skiplistrep.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/vectorrep.cc"
"${ROCKSDB_SOURCE_DIR}/memtable/write_buffer_manager.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/histogram.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/histogram_windowing.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/in_memory_stats_history.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/instrumented_mutex.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/iostats_context.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/perf_context.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/perf_level.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/persistent_stats_history.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/statistics.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_impl.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_updater.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_util.cc"
"${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_util_debug.cc"
"${ROCKSDB_SOURCE_DIR}/options/cf_options.cc"
"${ROCKSDB_SOURCE_DIR}/options/configurable.cc"
"${ROCKSDB_SOURCE_DIR}/options/customizable.cc"
"${ROCKSDB_SOURCE_DIR}/options/db_options.cc"
"${ROCKSDB_SOURCE_DIR}/options/options.cc"
"${ROCKSDB_SOURCE_DIR}/options/options_helper.cc"
"${ROCKSDB_SOURCE_DIR}/options/options_parser.cc"
"${ROCKSDB_SOURCE_DIR}/port/stack_trace.cc"
"${ROCKSDB_SOURCE_DIR}/table/adaptive/adaptive_table_factory.cc"
"${ROCKSDB_SOURCE_DIR}/table/block_based/binary_search_index_reader.cc"
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"${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_key_coding.cc"
"${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_reader.cc"
"${ROCKSDB_SOURCE_DIR}/table/sst_file_dumper.cc"
"${ROCKSDB_SOURCE_DIR}/table/sst_file_reader.cc"
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"${ROCKSDB_SOURCE_DIR}/test_util/transaction_test_util.cc"
"${ROCKSDB_SOURCE_DIR}/tools/block_cache_analyzer/block_cache_trace_analyzer.cc"
"${ROCKSDB_SOURCE_DIR}/tools/dump/db_dump_tool.cc"
"${ROCKSDB_SOURCE_DIR}/tools/io_tracer_parser_tool.cc"
"${ROCKSDB_SOURCE_DIR}/tools/ldb_cmd.cc"
"${ROCKSDB_SOURCE_DIR}/tools/ldb_tool.cc"
"${ROCKSDB_SOURCE_DIR}/tools/sst_dump_tool.cc"
"${ROCKSDB_SOURCE_DIR}/tools/trace_analyzer_tool.cc"
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"${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_prepared_txn.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_prepared_txn_db.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_unprepared_txn.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_unprepared_txn_db.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/ttl/db_ttl_impl.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/write_batch_with_index/write_batch_with_index.cc"
"${ROCKSDB_SOURCE_DIR}/utilities/write_batch_with_index/write_batch_with_index_internal.cc"
$<TARGET_OBJECTS:rocksdb_build_version>)
${ROCKSDB_SOURCE_DIR}/cache/cache.cc
${ROCKSDB_SOURCE_DIR}/cache/cache_entry_roles.cc
${ROCKSDB_SOURCE_DIR}/cache/clock_cache.cc
${ROCKSDB_SOURCE_DIR}/cache/lru_cache.cc
${ROCKSDB_SOURCE_DIR}/cache/sharded_cache.cc
${ROCKSDB_SOURCE_DIR}/db/arena_wrapped_db_iter.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_fetcher.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_addition.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_builder.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_cache.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_garbage.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_meta.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_file_reader.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_garbage_meter.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_format.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_sequential_reader.cc
${ROCKSDB_SOURCE_DIR}/db/blob/blob_log_writer.cc
${ROCKSDB_SOURCE_DIR}/db/builder.cc
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${ROCKSDB_SOURCE_DIR}/db/column_family.cc
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${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker_level.cc
${ROCKSDB_SOURCE_DIR}/db/compaction/compaction_picker_universal.cc
${ROCKSDB_SOURCE_DIR}/db/compaction/sst_partitioner.cc
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${ROCKSDB_SOURCE_DIR}/db/db_filesnapshot.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/compacted_db_impl.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_write.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_compaction_flush.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_files.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_open.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_debug.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_experimental.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_readonly.cc
${ROCKSDB_SOURCE_DIR}/db/db_impl/db_impl_secondary.cc
${ROCKSDB_SOURCE_DIR}/db/db_info_dumper.cc
${ROCKSDB_SOURCE_DIR}/db/db_iter.cc
${ROCKSDB_SOURCE_DIR}/db/dbformat.cc
${ROCKSDB_SOURCE_DIR}/db/error_handler.cc
${ROCKSDB_SOURCE_DIR}/db/event_helpers.cc
${ROCKSDB_SOURCE_DIR}/db/experimental.cc
${ROCKSDB_SOURCE_DIR}/db/external_sst_file_ingestion_job.cc
${ROCKSDB_SOURCE_DIR}/db/file_indexer.cc
${ROCKSDB_SOURCE_DIR}/db/flush_job.cc
${ROCKSDB_SOURCE_DIR}/db/flush_scheduler.cc
${ROCKSDB_SOURCE_DIR}/db/forward_iterator.cc
${ROCKSDB_SOURCE_DIR}/db/import_column_family_job.cc
${ROCKSDB_SOURCE_DIR}/db/internal_stats.cc
${ROCKSDB_SOURCE_DIR}/db/logs_with_prep_tracker.cc
${ROCKSDB_SOURCE_DIR}/db/log_reader.cc
${ROCKSDB_SOURCE_DIR}/db/log_writer.cc
${ROCKSDB_SOURCE_DIR}/db/malloc_stats.cc
${ROCKSDB_SOURCE_DIR}/db/memtable.cc
${ROCKSDB_SOURCE_DIR}/db/memtable_list.cc
${ROCKSDB_SOURCE_DIR}/db/merge_helper.cc
${ROCKSDB_SOURCE_DIR}/db/merge_operator.cc
${ROCKSDB_SOURCE_DIR}/db/output_validator.cc
${ROCKSDB_SOURCE_DIR}/db/periodic_work_scheduler.cc
${ROCKSDB_SOURCE_DIR}/db/range_del_aggregator.cc
${ROCKSDB_SOURCE_DIR}/db/range_tombstone_fragmenter.cc
${ROCKSDB_SOURCE_DIR}/db/repair.cc
${ROCKSDB_SOURCE_DIR}/db/snapshot_impl.cc
${ROCKSDB_SOURCE_DIR}/db/table_cache.cc
${ROCKSDB_SOURCE_DIR}/db/table_properties_collector.cc
${ROCKSDB_SOURCE_DIR}/db/transaction_log_impl.cc
${ROCKSDB_SOURCE_DIR}/db/trim_history_scheduler.cc
${ROCKSDB_SOURCE_DIR}/db/version_builder.cc
${ROCKSDB_SOURCE_DIR}/db/version_edit.cc
${ROCKSDB_SOURCE_DIR}/db/version_edit_handler.cc
${ROCKSDB_SOURCE_DIR}/db/version_set.cc
${ROCKSDB_SOURCE_DIR}/db/wal_edit.cc
${ROCKSDB_SOURCE_DIR}/db/wal_manager.cc
${ROCKSDB_SOURCE_DIR}/db/write_batch.cc
${ROCKSDB_SOURCE_DIR}/db/write_batch_base.cc
${ROCKSDB_SOURCE_DIR}/db/write_controller.cc
${ROCKSDB_SOURCE_DIR}/db/write_thread.cc
${ROCKSDB_SOURCE_DIR}/env/composite_env.cc
${ROCKSDB_SOURCE_DIR}/env/env.cc
${ROCKSDB_SOURCE_DIR}/env/env_chroot.cc
${ROCKSDB_SOURCE_DIR}/env/env_encryption.cc
${ROCKSDB_SOURCE_DIR}/env/env_hdfs.cc
${ROCKSDB_SOURCE_DIR}/env/file_system.cc
${ROCKSDB_SOURCE_DIR}/env/file_system_tracer.cc
${ROCKSDB_SOURCE_DIR}/env/fs_remap.cc
${ROCKSDB_SOURCE_DIR}/env/mock_env.cc
${ROCKSDB_SOURCE_DIR}/file/delete_scheduler.cc
${ROCKSDB_SOURCE_DIR}/file/file_prefetch_buffer.cc
${ROCKSDB_SOURCE_DIR}/file/file_util.cc
${ROCKSDB_SOURCE_DIR}/file/filename.cc
${ROCKSDB_SOURCE_DIR}/file/line_file_reader.cc
${ROCKSDB_SOURCE_DIR}/file/random_access_file_reader.cc
${ROCKSDB_SOURCE_DIR}/file/read_write_util.cc
${ROCKSDB_SOURCE_DIR}/file/readahead_raf.cc
${ROCKSDB_SOURCE_DIR}/file/sequence_file_reader.cc
${ROCKSDB_SOURCE_DIR}/file/sst_file_manager_impl.cc
${ROCKSDB_SOURCE_DIR}/file/writable_file_writer.cc
${ROCKSDB_SOURCE_DIR}/logging/auto_roll_logger.cc
${ROCKSDB_SOURCE_DIR}/logging/event_logger.cc
${ROCKSDB_SOURCE_DIR}/logging/log_buffer.cc
${ROCKSDB_SOURCE_DIR}/memory/arena.cc
${ROCKSDB_SOURCE_DIR}/memory/concurrent_arena.cc
${ROCKSDB_SOURCE_DIR}/memory/jemalloc_nodump_allocator.cc
${ROCKSDB_SOURCE_DIR}/memory/memkind_kmem_allocator.cc
${ROCKSDB_SOURCE_DIR}/memtable/alloc_tracker.cc
${ROCKSDB_SOURCE_DIR}/memtable/hash_linklist_rep.cc
${ROCKSDB_SOURCE_DIR}/memtable/hash_skiplist_rep.cc
${ROCKSDB_SOURCE_DIR}/memtable/skiplistrep.cc
${ROCKSDB_SOURCE_DIR}/memtable/vectorrep.cc
${ROCKSDB_SOURCE_DIR}/memtable/write_buffer_manager.cc
${ROCKSDB_SOURCE_DIR}/monitoring/histogram.cc
${ROCKSDB_SOURCE_DIR}/monitoring/histogram_windowing.cc
${ROCKSDB_SOURCE_DIR}/monitoring/in_memory_stats_history.cc
${ROCKSDB_SOURCE_DIR}/monitoring/instrumented_mutex.cc
${ROCKSDB_SOURCE_DIR}/monitoring/iostats_context.cc
${ROCKSDB_SOURCE_DIR}/monitoring/perf_context.cc
${ROCKSDB_SOURCE_DIR}/monitoring/perf_level.cc
${ROCKSDB_SOURCE_DIR}/monitoring/persistent_stats_history.cc
${ROCKSDB_SOURCE_DIR}/monitoring/statistics.cc
${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_impl.cc
${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_updater.cc
${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_util.cc
${ROCKSDB_SOURCE_DIR}/monitoring/thread_status_util_debug.cc
${ROCKSDB_SOURCE_DIR}/options/cf_options.cc
${ROCKSDB_SOURCE_DIR}/options/configurable.cc
${ROCKSDB_SOURCE_DIR}/options/customizable.cc
${ROCKSDB_SOURCE_DIR}/options/db_options.cc
${ROCKSDB_SOURCE_DIR}/options/options.cc
${ROCKSDB_SOURCE_DIR}/options/options_helper.cc
${ROCKSDB_SOURCE_DIR}/options/options_parser.cc
${ROCKSDB_SOURCE_DIR}/port/stack_trace.cc
${ROCKSDB_SOURCE_DIR}/table/adaptive/adaptive_table_factory.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/binary_search_index_reader.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_based_filter_block.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_based_table_builder.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_based_table_factory.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_based_table_iterator.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_based_table_reader.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_builder.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_prefetcher.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/block_prefix_index.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/data_block_hash_index.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/data_block_footer.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/filter_block_reader_common.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/filter_policy.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/flush_block_policy.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/full_filter_block.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/hash_index_reader.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/index_builder.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/index_reader_common.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/parsed_full_filter_block.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/partitioned_filter_block.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/partitioned_index_iterator.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/partitioned_index_reader.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/reader_common.cc
${ROCKSDB_SOURCE_DIR}/table/block_based/uncompression_dict_reader.cc
${ROCKSDB_SOURCE_DIR}/table/block_fetcher.cc
${ROCKSDB_SOURCE_DIR}/table/cuckoo/cuckoo_table_builder.cc
${ROCKSDB_SOURCE_DIR}/table/cuckoo/cuckoo_table_factory.cc
${ROCKSDB_SOURCE_DIR}/table/cuckoo/cuckoo_table_reader.cc
${ROCKSDB_SOURCE_DIR}/table/format.cc
${ROCKSDB_SOURCE_DIR}/table/get_context.cc
${ROCKSDB_SOURCE_DIR}/table/iterator.cc
${ROCKSDB_SOURCE_DIR}/table/merging_iterator.cc
${ROCKSDB_SOURCE_DIR}/table/meta_blocks.cc
${ROCKSDB_SOURCE_DIR}/table/persistent_cache_helper.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_bloom.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_builder.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_factory.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_index.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_key_coding.cc
${ROCKSDB_SOURCE_DIR}/table/plain/plain_table_reader.cc
${ROCKSDB_SOURCE_DIR}/table/sst_file_dumper.cc
${ROCKSDB_SOURCE_DIR}/table/sst_file_reader.cc
${ROCKSDB_SOURCE_DIR}/table/sst_file_writer.cc
${ROCKSDB_SOURCE_DIR}/table/table_factory.cc
${ROCKSDB_SOURCE_DIR}/table/table_properties.cc
${ROCKSDB_SOURCE_DIR}/table/two_level_iterator.cc
${ROCKSDB_SOURCE_DIR}/test_util/sync_point.cc
${ROCKSDB_SOURCE_DIR}/test_util/sync_point_impl.cc
${ROCKSDB_SOURCE_DIR}/test_util/testutil.cc
${ROCKSDB_SOURCE_DIR}/test_util/transaction_test_util.cc
${ROCKSDB_SOURCE_DIR}/tools/block_cache_analyzer/block_cache_trace_analyzer.cc
${ROCKSDB_SOURCE_DIR}/tools/dump/db_dump_tool.cc
${ROCKSDB_SOURCE_DIR}/tools/io_tracer_parser_tool.cc
${ROCKSDB_SOURCE_DIR}/tools/ldb_cmd.cc
${ROCKSDB_SOURCE_DIR}/tools/ldb_tool.cc
${ROCKSDB_SOURCE_DIR}/tools/sst_dump_tool.cc
${ROCKSDB_SOURCE_DIR}/tools/trace_analyzer_tool.cc
${ROCKSDB_SOURCE_DIR}/trace_replay/trace_replay.cc
${ROCKSDB_SOURCE_DIR}/trace_replay/block_cache_tracer.cc
${ROCKSDB_SOURCE_DIR}/trace_replay/io_tracer.cc
${ROCKSDB_SOURCE_DIR}/util/coding.cc
${ROCKSDB_SOURCE_DIR}/util/compaction_job_stats_impl.cc
${ROCKSDB_SOURCE_DIR}/util/comparator.cc
${ROCKSDB_SOURCE_DIR}/util/compression_context_cache.cc
${ROCKSDB_SOURCE_DIR}/util/concurrent_task_limiter_impl.cc
${ROCKSDB_SOURCE_DIR}/util/crc32c.cc
${ROCKSDB_SOURCE_DIR}/util/dynamic_bloom.cc
${ROCKSDB_SOURCE_DIR}/util/hash.cc
${ROCKSDB_SOURCE_DIR}/util/murmurhash.cc
${ROCKSDB_SOURCE_DIR}/util/random.cc
${ROCKSDB_SOURCE_DIR}/util/rate_limiter.cc
${ROCKSDB_SOURCE_DIR}/util/ribbon_config.cc
${ROCKSDB_SOURCE_DIR}/util/slice.cc
${ROCKSDB_SOURCE_DIR}/util/file_checksum_helper.cc
${ROCKSDB_SOURCE_DIR}/util/status.cc
${ROCKSDB_SOURCE_DIR}/util/string_util.cc
${ROCKSDB_SOURCE_DIR}/util/thread_local.cc
${ROCKSDB_SOURCE_DIR}/util/threadpool_imp.cc
${ROCKSDB_SOURCE_DIR}/util/xxhash.cc
${ROCKSDB_SOURCE_DIR}/utilities/backupable/backupable_db.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_compaction_filter.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_db.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_db_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_db_impl_filesnapshot.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_dump_tool.cc
${ROCKSDB_SOURCE_DIR}/utilities/blob_db/blob_file.cc
${ROCKSDB_SOURCE_DIR}/utilities/cassandra/cassandra_compaction_filter.cc
${ROCKSDB_SOURCE_DIR}/utilities/cassandra/format.cc
${ROCKSDB_SOURCE_DIR}/utilities/cassandra/merge_operator.cc
${ROCKSDB_SOURCE_DIR}/utilities/checkpoint/checkpoint_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc
${ROCKSDB_SOURCE_DIR}/utilities/debug.cc
${ROCKSDB_SOURCE_DIR}/utilities/env_mirror.cc
${ROCKSDB_SOURCE_DIR}/utilities/env_timed.cc
${ROCKSDB_SOURCE_DIR}/utilities/fault_injection_env.cc
${ROCKSDB_SOURCE_DIR}/utilities/fault_injection_fs.cc
${ROCKSDB_SOURCE_DIR}/utilities/leveldb_options/leveldb_options.cc
${ROCKSDB_SOURCE_DIR}/utilities/memory/memory_util.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/bytesxor.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/max.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/put.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/sortlist.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/string_append/stringappend.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/string_append/stringappend2.cc
${ROCKSDB_SOURCE_DIR}/utilities/merge_operators/uint64add.cc
${ROCKSDB_SOURCE_DIR}/utilities/object_registry.cc
${ROCKSDB_SOURCE_DIR}/utilities/option_change_migration/option_change_migration.cc
${ROCKSDB_SOURCE_DIR}/utilities/options/options_util.cc
${ROCKSDB_SOURCE_DIR}/utilities/persistent_cache/block_cache_tier.cc
${ROCKSDB_SOURCE_DIR}/utilities/persistent_cache/block_cache_tier_file.cc
${ROCKSDB_SOURCE_DIR}/utilities/persistent_cache/block_cache_tier_metadata.cc
${ROCKSDB_SOURCE_DIR}/utilities/persistent_cache/persistent_cache_tier.cc
${ROCKSDB_SOURCE_DIR}/utilities/persistent_cache/volatile_tier_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/simulator_cache/cache_simulator.cc
${ROCKSDB_SOURCE_DIR}/utilities/simulator_cache/sim_cache.cc
${ROCKSDB_SOURCE_DIR}/utilities/table_properties_collectors/compact_on_deletion_collector.cc
${ROCKSDB_SOURCE_DIR}/utilities/trace/file_trace_reader_writer.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/lock_manager.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/point/point_lock_tracker.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/point/point_lock_manager.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/range_tree_lock_manager.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/range_tree_lock_tracker.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/optimistic_transaction_db_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/optimistic_transaction.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/pessimistic_transaction.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/pessimistic_transaction_db.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/snapshot_checker.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/transaction_base.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/transaction_db_mutex_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/transaction_util.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_prepared_txn.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_prepared_txn_db.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_unprepared_txn.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/write_unprepared_txn_db.cc
${ROCKSDB_SOURCE_DIR}/utilities/ttl/db_ttl_impl.cc
${ROCKSDB_SOURCE_DIR}/utilities/write_batch_with_index/write_batch_with_index.cc
${ROCKSDB_SOURCE_DIR}/utilities/write_batch_with_index/write_batch_with_index_internal.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/concurrent_tree.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/keyrange.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/lock_request.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/locktree.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/manager.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/range_buffer.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/treenode.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/txnid_set.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/locktree/wfg.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/standalone_port.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/util/dbt.cc
${ROCKSDB_SOURCE_DIR}/utilities/transactions/lock/range/range_tree/lib/util/memarena.cc
rocksdb_build_version.cc)
if(HAVE_SSE42 AND NOT MSVC)
set_source_files_properties(

65
contrib/rocksdb-cmake/rocksdb_build_version.cc
View File

@ -1,3 +1,62 @@
const char* rocksdb_build_git_sha = "rocksdb_build_git_sha:0";
const char* rocksdb_build_git_date = "rocksdb_build_git_date:2000-01-01";
const char* rocksdb_build_compile_date = "2000-01-01";
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
/// This file was edited for ClickHouse.
#include <memory>
#include "rocksdb/version.h"
#include "util/string_util.h"
// The build script may replace these values with real values based
// on whether or not GIT is available and the platform settings
static const std::string rocksdb_build_git_sha = "rocksdb_build_git_sha:0";
static const std::string rocksdb_build_git_tag = "rocksdb_build_git_tag:master";
static const std::string rocksdb_build_date = "rocksdb_build_date:2000-01-01";
namespace ROCKSDB_NAMESPACE {
static void AddProperty(std::unordered_map<std::string, std::string> *props, const std::string& name) {
size_t colon = name.find(":");
if (colon != std::string::npos && colon > 0 && colon < name.length() - 1) {
// If we found a "@:", then this property was a build-time substitution that failed. Skip it
size_t at = name.find("@", colon);
if (at != colon + 1) {
// Everything before the colon is the name, after is the value
(*props)[name.substr(0, colon)] = name.substr(colon + 1);
}
}
}
static std::unordered_map<std::string, std::string>* LoadPropertiesSet() {
auto * properties = new std::unordered_map<std::string, std::string>();
AddProperty(properties, rocksdb_build_git_sha);
AddProperty(properties, rocksdb_build_git_tag);
AddProperty(properties, rocksdb_build_date);
return properties;
}
const std::unordered_map<std::string, std::string>& GetRocksBuildProperties() {
static std::unique_ptr<std::unordered_map<std::string, std::string>> props(LoadPropertiesSet());
return *props;
}
std::string GetRocksVersionAsString(bool with_patch) {
std::string version = ToString(ROCKSDB_MAJOR) + "." + ToString(ROCKSDB_MINOR);
if (with_patch) {
return version + "." + ToString(ROCKSDB_PATCH);
} else {
return version;
}
}
std::string GetRocksBuildInfoAsString(const std::string& program, bool verbose) {
std::string info = program + " (RocksDB) " + GetRocksVersionAsString(true);
if (verbose) {
for (const auto& it : GetRocksBuildProperties()) {
info.append("\n ");
info.append(it.first);
info.append(": ");
info.append(it.second);
}
}
return info;
}
} // namespace ROCKSDB_NAMESPACE

2
contrib/s2geometry-cmake/CMakeLists.txt
View File

@ -115,6 +115,8 @@ set(S2_SRCS
add_library(s2 ${S2_SRCS})
set_property(TARGET s2 PROPERTY CXX_STANDARD 11)
if (OPENSSL_FOUND)
target_link_libraries(s2 PRIVATE ${OPENSSL_LIBRARIES})
endif()

1
contrib/wordnet-blast vendored Submodule

@ -0,0 +1 @@
Subproject commit 1d16ac28036e19fe8da7ba72c16a307fbdf8c87e

13
contrib/wordnet-blast-cmake/CMakeLists.txt Normal file
View File

@ -0,0 +1,13 @@
set(LIBRARY_DIR "${ClickHouse_SOURCE_DIR}/contrib/wordnet-blast")
set(SRCS
"${LIBRARY_DIR}/wnb/core/info_helper.cc"
"${LIBRARY_DIR}/wnb/core/load_wordnet.cc"
"${LIBRARY_DIR}/wnb/core/wordnet.cc"
)
add_library(wnb ${SRCS})
target_link_libraries(wnb PRIVATE boost::headers_only boost::graph)
target_include_directories(wnb PUBLIC "${LIBRARY_DIR}")

2
docker/packager/deb/Dockerfile
View File

@ -27,7 +27,7 @@ RUN apt-get update \
# Special dpkg-deb (https://github.com/ClickHouse-Extras/dpkg) version which is able
# to compress files using pigz (https://zlib.net/pigz/) instead of gzip.
# Significantly increase deb packaging speed and compatible with old systems
RUN curl -O https://clickhouse-builds.s3.yandex.net/utils/1/dpkg-deb \
RUN curl -O https://clickhouse-datasets.s3.yandex.net/utils/1/dpkg-deb \
&& chmod +x dpkg-deb \
&& cp dpkg-deb /usr/bin

3
docker/packager/unbundled/Dockerfile
View File

@ -2,7 +2,7 @@
FROM yandex/clickhouse-deb-builder
RUN export CODENAME="$(lsb_release --codename --short | tr 'A-Z' 'a-z')" \
&& wget -nv -O /tmp/arrow-keyring.deb "https://apache.bintray.com/arrow/ubuntu/apache-arrow-archive-keyring-latest-${CODENAME}.deb" \
&& wget -nv -O /tmp/arrow-keyring.deb "https://apache.jfrog.io/artifactory/arrow/ubuntu/apache-arrow-apt-source-latest-${CODENAME}.deb" \
&& dpkg -i /tmp/arrow-keyring.deb
# Libraries from OS are only needed to test the "unbundled" build (that is not used in production).
@ -23,6 +23,7 @@ RUN apt-get update \
libboost-regex-dev \
libboost-context-dev \
libboost-coroutine-dev \
libboost-graph-dev \
zlib1g-dev \
liblz4-dev \
libdouble-conversion-dev \

9
docker/server/entrypoint.sh
View File

@ -72,7 +72,10 @@ do
if [ "$DO_CHOWN" = "1" ]; then
# ensure proper directories permissions
chown -R "$USER:$GROUP" "$dir"
# but skip it for if directory already has proper premissions, cause recursive chown may be slow
if [ "$(stat -c %u "$dir")" != "$USER" ] || [ "$(stat -c %g "$dir")" != "$GROUP" ]; then
chown -R "$USER:$GROUP" "$dir"
fi
elif ! $gosu test -d "$dir" -a -w "$dir" -a -r "$dir"; then
echo "Necessary directory '$dir' isn't accessible by user with id '$USER'"
exit 1
@ -161,6 +164,10 @@ fi
# if no args passed to `docker run` or first argument start with `--`, then the user is passing clickhouse-server arguments
if [[ $# -lt 1 ]] || [[ "$1" == "--"* ]]; then
# Watchdog is launched by default, but does not send SIGINT to the main process,
# so the container can't be finished by ctrl+c
CLICKHOUSE_WATCHDOG_ENABLE=${CLICKHOUSE_WATCHDOG_ENABLE:-0}
export CLICKHOUSE_WATCHDOG_ENABLE
exec $gosu /usr/bin/clickhouse-server --config-file="$CLICKHOUSE_CONFIG" "$@"
fi

5
docker/test/base/Dockerfile
View File

@ -27,7 +27,7 @@ RUN apt-get update \
# Special dpkg-deb (https://github.com/ClickHouse-Extras/dpkg) version which is able
# to compress files using pigz (https://zlib.net/pigz/) instead of gzip.
# Significantly increase deb packaging speed and compatible with old systems
RUN curl -O https://clickhouse-builds.s3.yandex.net/utils/1/dpkg-deb \
RUN curl -O https://clickhouse-datasets.s3.yandex.net/utils/1/dpkg-deb \
&& chmod +x dpkg-deb \
&& cp dpkg-deb /usr/bin
@ -61,4 +61,7 @@ ENV TSAN_OPTIONS='halt_on_error=1 history_size=7'
ENV UBSAN_OPTIONS='print_stacktrace=1'
ENV MSAN_OPTIONS='abort_on_error=1 poison_in_dtor=1'
ENV TZ=Europe/Moscow
RUN ln -snf "/usr/share/zoneinfo/$TZ" /etc/localtime && echo "$TZ" > /etc/timezone
CMD sleep 1

4
docker/test/fasttest/Dockerfile
View File

@ -27,7 +27,7 @@ RUN apt-get update \
# Special dpkg-deb (https://github.com/ClickHouse-Extras/dpkg) version which is able
# to compress files using pigz (https://zlib.net/pigz/) instead of gzip.
# Significantly increase deb packaging speed and compatible with old systems
RUN curl -O https://clickhouse-builds.s3.yandex.net/utils/1/dpkg-deb \
RUN curl -O https://clickhouse-datasets.s3.yandex.net/utils/1/dpkg-deb \
&& chmod +x dpkg-deb \
&& cp dpkg-deb /usr/bin
@ -65,7 +65,7 @@ RUN apt-get update \
unixodbc \
--yes --no-install-recommends
RUN pip3 install numpy scipy pandas
RUN pip3 install numpy scipy pandas Jinja2
# This symlink required by gcc to find lld compiler
RUN ln -s /usr/bin/lld-${LLVM_VERSION} /usr/bin/ld.lld

2
docker/test/fasttest/run.sh
View File

@ -299,6 +299,7 @@ function run_tests
01318_decrypt # Depends on OpenSSL
01663_aes_msan # Depends on OpenSSL
01667_aes_args_check # Depends on OpenSSL
01683_codec_encrypted # Depends on OpenSSL
01776_decrypt_aead_size_check # Depends on OpenSSL
01811_filter_by_null # Depends on OpenSSL
01281_unsucceeded_insert_select_queries_counter
@ -310,6 +311,7 @@ function run_tests
01411_bayesian_ab_testing
01798_uniq_theta_sketch
01799_long_uniq_theta_sketch
01890_stem # depends on libstemmer_c
collate
collation
_orc_

4
docker/test/fuzzer/run-fuzzer.sh
View File

@ -194,6 +194,10 @@ continue
jobs
pstree -aspgT
server_exit_code=0
wait $server_pid || server_exit_code=$?
echo "Server exit code is $server_exit_code"
# Make files with status and description we'll show for this check on Github.
task_exit_code=$fuzzer_exit_code
if [ "$server_died" == 1 ]

3
docker/test/integration/base/Dockerfile
View File

@ -32,7 +32,7 @@ RUN rm -rf \
RUN apt-get clean
# Install MySQL ODBC driver
RUN curl 'https://cdn.mysql.com//Downloads/Connector-ODBC/8.0/mysql-connector-odbc-8.0.21-linux-glibc2.12-x86-64bit.tar.gz' --output 'mysql-connector.tar.gz' && tar -xzf mysql-connector.tar.gz && cd mysql-connector-odbc-8.0.21-linux-glibc2.12-x86-64bit/lib && mv * /usr/local/lib && ln -s /usr/local/lib/libmyodbc8a.so /usr/lib/x86_64-linux-gnu/odbc/libmyodbc.so
RUN curl 'https://downloads.mysql.com/archives/get/p/10/file/mysql-connector-odbc-8.0.21-linux-glibc2.12-x86-64bit.tar.gz' --location --output 'mysql-connector.tar.gz' && tar -xzf mysql-connector.tar.gz && cd mysql-connector-odbc-8.0.21-linux-glibc2.12-x86-64bit/lib && mv * /usr/local/lib && ln -s /usr/local/lib/libmyodbc8a.so /usr/lib/x86_64-linux-gnu/odbc/libmyodbc.so
# Unfortunately this is required for a single test for conversion data from zookeeper to clickhouse-keeper.
# ZooKeeper is not started by default, but consumes some space in containers.
@ -49,4 +49,3 @@ RUN mkdir /zookeeper && chmod -R 777 /zookeeper
ENV TZ=Europe/Moscow
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

1
docker/test/integration/runner/Dockerfile
View File

@ -76,6 +76,7 @@ RUN python3 -m pip install \
pytest \
pytest-timeout \
pytest-xdist \
pytest-repeat \
redis \
tzlocal \
urllib3 \

8
docker/test/integration/runner/compose/docker_compose_jdbc_bridge.yml
View File

@ -14,10 +14,14 @@ services:
}
EOF
./docker-entrypoint.sh'
ports:
- 9020:9019
expose:
- 9019
healthcheck:
test: ["CMD", "curl", "-s", "localhost:9019/ping"]
interval: 5s
timeout: 3s
retries: 30
volumes:
- type: ${JDBC_BRIDGE_FS:-tmpfs}
source: ${JDBC_BRIDGE_LOGS:-}
target: /app/logs

13
docker/test/integration/runner/compose/docker_compose_mongo_secure.yml Normal file
View File

@ -0,0 +1,13 @@
version: '2.3'
services:
mongo1:
image: mongo:3.6
restart: always
environment:
MONGO_INITDB_ROOT_USERNAME: root
MONGO_INITDB_ROOT_PASSWORD: clickhouse
volumes:
- ${MONGO_CONFIG_PATH}:/mongo/
ports:
- ${MONGO_EXTERNAL_PORT}:${MONGO_INTERNAL_PORT}
command: --config /mongo/mongo_secure.conf --profile=2 --verbose

0
docker/test/integration/runner/compose/docker_compose_mysql_5_7_for_materialize_mysql.yml → docker/test/integration/runner/compose/docker_compose_mysql_5_7_for_materialized_mysql.yml
View File

2
docker/test/integration/runner/compose/docker_compose_postgres.yml
View File

@ -2,7 +2,7 @@ version: '2.3'
services:
postgres1:
image: postgres
command: ["postgres", "-c", "logging_collector=on", "-c", "log_directory=/postgres/logs", "-c", "log_filename=postgresql.log", "-c", "log_statement=all"]
command: ["postgres", "-c", "logging_collector=on", "-c", "log_directory=/postgres/logs", "-c", "log_filename=postgresql.log", "-c", "log_statement=all", "-c", "max_connections=200"]
restart: always
expose:
- ${POSTGRES_PORT}

2
docker/test/integration/runner/compose/docker_compose_rabbitmq.yml
View File

@ -2,7 +2,7 @@ version: '2.3'
services:
rabbitmq1:
image: rabbitmq:3-management-alpine
image: rabbitmq:3.8-management-alpine
hostname: rabbitmq1
expose:
- ${RABBITMQ_PORT}

2
docker/test/performance-comparison/compare.sh
View File

@ -1196,7 +1196,7 @@ create table changes engine File(TSV, 'metrics/changes.tsv') as
if(left > right, left / right, right / left) times_diff
from metrics
group by metric
having abs(diff) > 0.05 and isFinite(diff)
having abs(diff) > 0.05 and isFinite(diff) and isFinite(times_diff)
)
order by diff desc
;

4
docker/test/performance-comparison/perf.py
View File

@ -183,6 +183,10 @@ for conn_index, c in enumerate(all_connections):
# requires clickhouse-driver >= 1.1.5 to accept arbitrary new settings
# (https://github.com/mymarilyn/clickhouse-driver/pull/142)
c.settings[s.tag] = s.text
# We have to perform a query to make sure the settings work. Otherwise an
# unknown setting will lead to failing precondition check, and we will skip
# the test, which is wrong.
c.execute("select 1")
reportStageEnd('settings')

5
docker/test/stateful/run.sh
View File

@ -2,6 +2,11 @@
set -e -x
# Choose random timezone for this test run
TZ="$(grep -v '#' /usr/share/zoneinfo/zone.tab | awk '{print $3}' | shuf | head -n1)"
echo "Choosen random timezone $TZ"
ln -snf "/usr/share/zoneinfo/$TZ" /etc/localtime && echo "$TZ" > /etc/timezone
dpkg -i package_folder/clickhouse-common-static_*.deb;
dpkg -i package_folder/clickhouse-common-static-dbg_*.deb
dpkg -i package_folder/clickhouse-server_*.deb

2
docker/test/stateless/Dockerfile
View File

@ -32,7 +32,7 @@ RUN apt-get update -y \
postgresql-client \
sqlite3
RUN pip3 install numpy scipy pandas
RUN pip3 install numpy scipy pandas Jinja2
RUN mkdir -p /tmp/clickhouse-odbc-tmp \
&& wget -nv -O - ${odbc_driver_url} | tar --strip-components=1 -xz -C /tmp/clickhouse-odbc-tmp \

5
docker/test/stateless/process_functional_tests_result.py
View File

@ -12,7 +12,7 @@ UNKNOWN_SIGN = "[ UNKNOWN "
SKIPPED_SIGN = "[ SKIPPED "
HUNG_SIGN = "Found hung queries in processlist"
NO_TASK_TIMEOUT_SIGN = "All tests have finished"
NO_TASK_TIMEOUT_SIGNS = ["All tests have finished", "No tests were run"]
RETRIES_SIGN = "Some tests were restarted"
@ -29,7 +29,7 @@ def process_test_log(log_path):
with open(log_path, 'r') as test_file:
for line in test_file:
line = line.strip()
if NO_TASK_TIMEOUT_SIGN in line:
if any(s in line for s in NO_TASK_TIMEOUT_SIGNS):
task_timeout = False
if HUNG_SIGN in line:
hung = True
@ -80,6 +80,7 @@ def process_result(result_path):
if result_path and os.path.exists(result_path):
total, skipped, unknown, failed, success, hung, task_timeout, retries, test_results = process_test_log(result_path)
is_flacky_check = 1 < int(os.environ.get('NUM_TRIES', 1))
logging.info("Is flacky check: %s", is_flacky_check)
# If no tests were run (success == 0) it indicates an error (e.g. server did not start or crashed immediately)
# But it's Ok for "flaky checks" - they can contain just one test for check which is marked as skipped.
if failed != 0 or unknown != 0 or (success == 0 and (not is_flacky_check)):

12
docker/test/stateless/run.sh
View File

@ -3,6 +3,11 @@
# fail on errors, verbose and export all env variables
set -e -x -a
# Choose random timezone for this test run.
TZ="$(grep -v '#' /usr/share/zoneinfo/zone.tab | awk '{print $3}' | shuf | head -n1)"
echo "Choosen random timezone $TZ"
ln -snf "/usr/share/zoneinfo/$TZ" /etc/localtime && echo "$TZ" > /etc/timezone
dpkg -i package_folder/clickhouse-common-static_*.deb
dpkg -i package_folder/clickhouse-common-static-dbg_*.deb
dpkg -i package_folder/clickhouse-server_*.deb
@ -138,15 +143,18 @@ if [[ -n "$WITH_COVERAGE" ]] && [[ "$WITH_COVERAGE" -eq 1 ]]; then
fi
tar -chf /test_output/text_log_dump.tar /var/lib/clickhouse/data/system/text_log ||:
tar -chf /test_output/query_log_dump.tar /var/lib/clickhouse/data/system/query_log ||:
tar -chf /test_output/zookeeper_log_dump.tar /var/lib/clickhouse/data/system/zookeeper_log ||:
tar -chf /test_output/coordination.tar /var/lib/clickhouse/coordination ||:
if [[ -n "$USE_DATABASE_REPLICATED" ]] && [[ "$USE_DATABASE_REPLICATED" -eq 1 ]]; then
grep -Fa "Fatal" /var/log/clickhouse-server/clickhouse-server1.log ||:
grep -Fa "Fatal" /var/log/clickhouse-server/clickhouse-server2.log ||:
grep -Fa "Fatal" /var/log/clickhouse-server/clickhouse-server1.log ||:
grep -Fa "Fatal" /var/log/clickhouse-server/clickhouse-server2.log ||:
pigz < /var/log/clickhouse-server/clickhouse-server1.log > /test_output/clickhouse-server1.log.gz ||:
pigz < /var/log/clickhouse-server/clickhouse-server2.log > /test_output/clickhouse-server2.log.gz ||:
mv /var/log/clickhouse-server/stderr1.log /test_output/ ||:
mv /var/log/clickhouse-server/stderr2.log /test_output/ ||:
tar -chf /test_output/zookeeper_log_dump1.tar /var/lib/clickhouse1/data/system/zookeeper_log ||:
tar -chf /test_output/zookeeper_log_dump2.tar /var/lib/clickhouse2/data/system/zookeeper_log ||:
tar -chf /test_output/coordination1.tar /var/lib/clickhouse1/coordination ||:
tar -chf /test_output/coordination2.tar /var/lib/clickhouse2/coordination ||:
fi

3
docker/test/stateless_unbundled/Dockerfile
View File

@ -77,9 +77,6 @@ RUN mkdir -p /tmp/clickhouse-odbc-tmp \
&& odbcinst -i -s -l -f /tmp/clickhouse-odbc-tmp/share/doc/clickhouse-odbc/config/odbc.ini.sample \
&& rm -rf /tmp/clickhouse-odbc-tmp
ENV TZ=Europe/Moscow
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
COPY run.sh /
CMD ["/bin/bash", "/run.sh"]

16
docker/test/stress/run.sh
View File

@ -58,11 +58,11 @@ function start()
echo "Cannot start clickhouse-server"
cat /var/log/clickhouse-server/stdout.log
tail -n1000 /var/log/clickhouse-server/stderr.log
tail -n1000 /var/log/clickhouse-server/clickhouse-server.log
tail -n100000 /var/log/clickhouse-server/clickhouse-server.log | grep -F -v '<Warning> RaftInstance:' -e '<Information> RaftInstance' | tail -n1000
break
fi
# use root to match with current uid
clickhouse start --user root >/var/log/clickhouse-server/stdout.log 2>/var/log/clickhouse-server/stderr.log
clickhouse start --user root >/var/log/clickhouse-server/stdout.log 2>>/var/log/clickhouse-server/stderr.log
sleep 0.5
counter=$((counter + 1))
done
@ -118,35 +118,35 @@ clickhouse-client --query "SELECT 'Server successfully started', 'OK'" >> /test_
[ -f /var/log/clickhouse-server/stderr.log ] || echo -e "Stderr log does not exist\tFAIL"
# Print Fatal log messages to stdout
zgrep -Fa " <Fatal> " /var/log/clickhouse-server/clickhouse-server.log
zgrep -Fa " <Fatal> " /var/log/clickhouse-server/clickhouse-server.log*
# Grep logs for sanitizer asserts, crashes and other critical errors
# Sanitizer asserts
zgrep -Fa "==================" /var/log/clickhouse-server/stderr.log >> /test_output/tmp
zgrep -Fa "WARNING" /var/log/clickhouse-server/stderr.log >> /test_output/tmp
zgrep -Fav "ASan doesn't fully support makecontext/swapcontext functions" > /dev/null \
zgrep -Fav "ASan doesn't fully support makecontext/swapcontext functions" /test_output/tmp > /dev/null \
&& echo -e 'Sanitizer assert (in stderr.log)\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'No sanitizer asserts\tOK' >> /test_output/test_results.tsv
rm -f /test_output/tmp
# OOM
zgrep -Fa " <Fatal> Application: Child process was terminated by signal 9" /var/log/clickhouse-server/clickhouse-server.log > /dev/null \
zgrep -Fa " <Fatal> Application: Child process was terminated by signal 9" /var/log/clickhouse-server/clickhouse-server.log* > /dev/null \
&& echo -e 'OOM killer (or signal 9) in clickhouse-server.log\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'No OOM messages in clickhouse-server.log\tOK' >> /test_output/test_results.tsv
# Logical errors
zgrep -Fa "Code: 49, e.displayText() = DB::Exception:" /var/log/clickhouse-server/clickhouse-server.log > /dev/null \
zgrep -Fa "Code: 49, e.displayText() = DB::Exception:" /var/log/clickhouse-server/clickhouse-server.log* > /dev/null \
&& echo -e 'Logical error thrown (see clickhouse-server.log)\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'No logical errors\tOK' >> /test_output/test_results.tsv
# Crash
zgrep -Fa "########################################" /var/log/clickhouse-server/clickhouse-server.log > /dev/null \
zgrep -Fa "########################################" /var/log/clickhouse-server/clickhouse-server.log* > /dev/null \
&& echo -e 'Killed by signal (in clickhouse-server.log)\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'Not crashed\tOK' >> /test_output/test_results.tsv
# It also checks for crash without stacktrace (printed by watchdog)
zgrep -Fa " <Fatal> " /var/log/clickhouse-server/clickhouse-server.log > /dev/null \
zgrep -Fa " <Fatal> " /var/log/clickhouse-server/clickhouse-server.log* > /dev/null \
&& echo -e 'Fatal message in clickhouse-server.log\tFAIL' >> /test_output/test_results.tsv \
|| echo -e 'No fatal messages in clickhouse-server.log\tOK' >> /test_output/test_results.tsv

23
docker/test/stress/stress
View File

@ -20,6 +20,7 @@ def get_skip_list_cmd(path):
def get_options(i):
options = []
client_options = []
if 0 < i:
options.append("--order=random")
@ -27,25 +28,29 @@ def get_options(i):
options.append("--db-engine=Ordinary")
if i % 3 == 2:
options.append('''--client-option='allow_experimental_database_replicated=1' --db-engine="Replicated('/test/db/test_{}', 's1', 'r1')"'''.format(i))
options.append('''--db-engine="Replicated('/test/db/test_{}', 's1', 'r1')"'''.format(i))
client_options.append('allow_experimental_database_replicated=1')
# If database name is not specified, new database is created for each functional test.
# Run some threads with one database for all tests.
if i % 2 == 1:
options.append(" --database=test_{}".format(i))
if i % 7 == 0:
options.append(" --client-option='join_use_nulls=1'")
if i % 5 == 1:
client_options.append("join_use_nulls=1")
if i % 14 == 0:
options.append(' --client-option="join_algorithm=\'partial_merge\'"')
if i % 15 == 6:
client_options.append("join_algorithm='partial_merge'")
if i % 21 == 0:
options.append(' --client-option="join_algorithm=\'auto\'"')
options.append(' --client-option="max_rows_in_join=1000"')
if i % 15 == 11:
client_options.append("join_algorithm='auto'")
client_options.append('max_rows_in_join=1000')
if i == 13:
options.append(" --client-option='memory_tracker_fault_probability=0.00001'")
client_options.append('memory_tracker_fault_probability=0.001')
if client_options:
options.append(" --client-option " + ' '.join(client_options))
return ' '.join(options)

2
docker/test/testflows/runner/Dockerfile
View File

@ -35,7 +35,7 @@ RUN apt-get update \
ENV TZ=Europe/Moscow
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
RUN pip3 install urllib3 testflows==1.6.90 docker-compose==1.29.1 docker==5.0.0 dicttoxml kazoo tzlocal python-dateutil numpy
RUN pip3 install urllib3 testflows==1.7.20 docker-compose==1.29.1 docker==5.0.0 dicttoxml kazoo tzlocal python-dateutil numpy
ENV DOCKER_CHANNEL stable
ENV DOCKER_VERSION 20.10.6

2
docker/test/unit/Dockerfile
View File

@ -1,8 +1,6 @@
# docker build -t yandex/clickhouse-unit-test .
FROM yandex/clickhouse-stateless-test
ENV TZ=Europe/Moscow
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
RUN apt-get install gdb
COPY run.sh /

10
docs/README.md
View File

@ -9,7 +9,7 @@ Many developers can say that the code is the best docs by itself, and they are r
If you want to help ClickHouse with documentation you can face, for example, the following questions:
- "I don't know how to write."
We have prepared some [recommendations](#what-to-write) for you.
- "I know what I want to write, but I don't know how to contribute to docs."
@ -71,17 +71,17 @@ Contribute all new information in English language. Other languages are translat
```
- Bold text: `**asterisks**` or `__underlines__`.
- Links: `[link text](uri)`. Examples:
- Links: `[link text](uri)`. Examples:
- External link: `[ClickHouse repo](https://github.com/ClickHouse/ClickHouse)`
- Cross link: `[How to build docs](tools/README.md)`
- Images: `![Exclamation sign](uri)`. You can refer to local images as well as remote in internet.
- Lists: Lists can be of two types:
- `- unordered`: Each item starts from the `-`.
- `1. ordered`: Each item starts from the number.
A list must be separated from the text by an empty line. Nested lists must be indented with 4 spaces.
- Inline code: `` `in backticks` ``.
@ -107,7 +107,7 @@ Contribute all new information in English language. Other languages are translat
- Text hidden behind a cut (single sting that opens on click):
```text
<details markdown="1"> <summary>Visible text</summary>
<details markdown="1"> <summary>Visible text</summary>
Hidden content.
</details>`.
```

4
docs/_description_templates/template-data-type.md
View File

@ -1,6 +1,6 @@
---
toc_priority:
toc_title:
toc_priority:
toc_title:
---
# data_type_name {#data_type-name}

2
docs/_description_templates/template-engine.md
View File

@ -58,6 +58,6 @@ Result:
Follow up with any text to clarify the example.
**See Also**
**See Also**
- [link](#)

6
docs/_description_templates/template-function.md
View File

@ -14,8 +14,8 @@ More text (Optional).
**Arguments** (Optional)
- `x` — Description. Optional (only for optional arguments). Possible values: <values list>. Default value: <value>. [Type name](relative/path/to/type/dscr.md#type).
- `y` — Description. Optional (only for optional arguments). Possible values: <values list>.Default value: <value>. [Type name](relative/path/to/type/dscr.md#type).
- `x` — Description. Optional (only for optional arguments). Possible values: <values list>. Default value: <value>. [Type name](relative/path/to/type/dscr.md#type).
- `y` — Description. Optional (only for optional arguments). Possible values: <values list>.Default value: <value>. [Type name](relative/path/to/type/dscr.md#type).
**Parameters** (Optional, only for parametric aggregate functions)
@ -23,7 +23,7 @@ More text (Optional).
**Returned value(s)**
- Returned values list.
- Returned values list.
Type: [Type name](relative/path/to/type/dscr.md#type).

6
docs/_includes/cmake_in_clickhouse_footer.md
View File

@ -16,8 +16,8 @@ Better:
option(ENABLE_TESTS "Provide unit_test_dbms target with Google.test unit tests" OFF)
```
If the option's purpose can't be guessed by its name, or the purpose guess may be misleading, or option has some
pre-conditions, leave a comment above the `option()` line and explain what it does.
If the option's purpose can't be guessed by its name, or the purpose guess may be misleading, or option has some
pre-conditions, leave a comment above the `option()` line and explain what it does.
The best way would be linking the docs page (if it exists).
The comment is parsed into a separate column (see below).
@ -33,7 +33,7 @@ option(ENABLE_TESTS "Provide unit_test_dbms target with Google.test unit tests"
Suppose you have an option that may strip debug symbols from the ClickHouse's part.
This can speed up the linking process, but produces a binary that cannot be debugged.
In that case, prefer explicitly raising a warning telling the developer that he may be doing something wrong.
In that case, prefer explicitly raising a warning telling the developer that he may be doing something wrong.
Also, such options should be disabled if applies.
Bad:

2
docs/en/commercial/support.md
View File

@ -7,7 +7,7 @@ toc_title: Support
!!! info "Info"
If you have launched a ClickHouse commercial support service, feel free to [open a pull-request](https://github.com/ClickHouse/ClickHouse/edit/master/docs/en/commercial/support.md) adding it to the following list.
## Yandex.Cloud
ClickHouse worldwide support from the authors of ClickHouse. Supports on-premise and cloud deployments. Ask details on clickhouse-support@yandex-team.com

40
docs/en/development/adding_test_queries.md
View File

@ -4,11 +4,11 @@ ClickHouse has hundreds (or even thousands) of features. Every commit gets check
The core functionality is very well tested, but some corner-cases and different combinations of features can be uncovered with ClickHouse CI.
Most of the bugs/regressions we see happen in that 'grey area' where test coverage is poor.
Most of the bugs/regressions we see happen in that 'grey area' where test coverage is poor.
And we are very interested in covering most of the possible scenarios and feature combinations used in real life by tests.
And we are very interested in covering most of the possible scenarios and feature combinations used in real life by tests.
## Why adding tests
## Why adding tests
Why/when you should add a test case into ClickHouse code:
1) you use some complicated scenarios / feature combinations / you have some corner case which is probably not widely used
@ -17,18 +17,18 @@ Why/when you should add a test case into ClickHouse code:
4) once the test is added/accepted, you can be sure the corner case you check will never be accidentally broken.
5) you will be a part of great open-source community
6) your name will be visible in the `system.contributors` table!
7) you will make a world bit better :)
7) you will make a world bit better :)
### Steps to do
#### Prerequisite
#### Prerequisite
I assume you run some Linux machine (you can use docker / virtual machines on other OS) and any modern browser / internet connection, and you have some basic Linux & SQL skills.
I assume you run some Linux machine (you can use docker / virtual machines on other OS) and any modern browser / internet connection, and you have some basic Linux & SQL skills.
Any highly specialized knowledge is not needed (so you don't need to know C++ or know something about how ClickHouse CI works).
#### Preparation
#### Preparation
1) [create GitHub account](https://github.com/join) (if you haven't one yet)
2) [setup git](https://docs.github.com/en/free-pro-team@latest/github/getting-started-with-github/set-up-git)
@ -54,17 +54,17 @@ git remote add upstream https://github.com/ClickHouse/ClickHouse
#### New branch for the test
1) create a new branch from the latest clickhouse master
1) create a new branch from the latest clickhouse master
```
cd ~/workspace/ClickHouse
git fetch upstream
git checkout -b name_for_a_branch_with_my_test upstream/master
git checkout -b name_for_a_branch_with_my_test upstream/master
```
#### Install & run clickhouse
#### Install & run clickhouse
1) install `clickhouse-server` (follow [official docs](https://clickhouse.tech/docs/en/getting-started/install/))
2) install test configurations (it will use Zookeeper mock implementation and adjust some settings)
2) install test configurations (it will use Zookeeper mock implementation and adjust some settings)
```
cd ~/workspace/ClickHouse/tests/config
sudo ./install.sh
@ -74,7 +74,7 @@ sudo ./install.sh
sudo systemctl restart clickhouse-server
```
#### Creating the test file
#### Creating the test file
1) find the number for your test - find the file with the biggest number in `tests/queries/0_stateless/`
@ -86,7 +86,7 @@ tests/queries/0_stateless/01520_client_print_query_id.reference
```
Currently, the last number for the test is `01520`, so my test will have the number `01521`
2) create an SQL file with the next number and name of the feature you test
2) create an SQL file with the next number and name of the feature you test
```sh
touch tests/queries/0_stateless/01521_dummy_test.sql
@ -112,16 +112,16 @@ clickhouse-client -nmT < tests/queries/0_stateless/01521_dummy_test.sql | tee te
- fast - should not take longer than a few seconds (better subseconds)
- correct - fails then feature is not working
- deterministic
- isolated / stateless
- isolated / stateless
- don't rely on some environment things
- don't rely on timing when possible
- try to cover corner cases (zeros / Nulls / empty sets / throwing exceptions)
- don't rely on timing when possible
- try to cover corner cases (zeros / Nulls / empty sets / throwing exceptions)
- to test that query return errors, you can put special comment after the query: `-- { serverError 60 }` or `-- { clientError 20 }`
- don't switch databases (unless necessary)
- you can create several table replicas on the same node if needed
- you can use one of the test cluster definitions when needed (see system.clusters)
- use `number` / `numbers_mt` / `zeros` / `zeros_mt` and similar for queries / to initialize data when applicable
- clean up the created objects after test and before the test (DROP IF EXISTS) - in case of some dirty state
- clean up the created objects after test and before the test (DROP IF EXISTS) - in case of some dirty state
- prefer sync mode of operations (mutations, merges, etc.)
- use other SQL files in the `0_stateless` folder as an example
- ensure the feature / feature combination you want to test is not yet covered with existing tests
@ -138,7 +138,7 @@ It's important to name tests correctly, so one could turn some tests subset off
#### Commit / push / create PR.
1) commit & push your changes
1) commit & push your changes
```sh
cd ~/workspace/ClickHouse
git add tests/queries/0_stateless/01521_dummy_test.sql
@ -147,5 +147,5 @@ git commit # use some nice commit message when possible
git push origin HEAD
```
2) use a link which was shown during the push, to create a PR into the main repo
3) adjust the PR title and contents, in `Changelog category (leave one)` keep
`Build/Testing/Packaging Improvement`, fill the rest of the fields if you want.
3) adjust the PR title and contents, in `Changelog category (leave one)` keep
`Build/Testing/Packaging Improvement`, fill the rest of the fields if you want.

2
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@ -8,7 +8,7 @@ toc_title: Third-Party Libraries Used
The list of third-party libraries can be obtained by the following query:
``` sql
SELECT library_name, license_type, license_path FROM system.licenses ORDER BY library_name COLLATE 'en'
SELECT library_name, license_type, license_path FROM system.licenses ORDER BY library_name COLLATE 'en';
```
[Example](https://gh-api.clickhouse.tech/play?user=play#U0VMRUNUIGxpYnJhcnlfbmFtZSwgbGljZW5zZV90eXBlLCBsaWNlbnNlX3BhdGggRlJPTSBzeXN0ZW0ubGljZW5zZXMgT1JERVIgQlkgbGlicmFyeV9uYW1lIENPTExBVEUgJ2VuJw==)

2
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View File

@ -123,7 +123,7 @@ For installing CMake and Ninja on Mac OS X first install Homebrew and then insta
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install cmake ninja
Next, check the version of CMake: `cmake --version`. If it is below 3.3, you should install a newer version from the website: https://cmake.org/download/.
Next, check the version of CMake: `cmake --version`. If it is below 3.12, you should install a newer version from the website: https://cmake.org/download/.
## Optional External Libraries {#optional-external-libraries}

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@ -749,7 +749,7 @@ If your code in the `master` branch is not buildable yet, exclude it from the bu
**1.** The C++20 standard library is used (experimental extensions are allowed), as well as `boost` and `Poco` frameworks.
**2.** It is not allowed to use libraries from OS packages. It is also not allowed to use pre-installed libraries. All libraries should be placed in form of source code in `contrib` directory and built with ClickHouse.
**2.** It is not allowed to use libraries from OS packages. It is also not allowed to use pre-installed libraries. All libraries should be placed in form of source code in `contrib` directory and built with ClickHouse. See [Guidelines for adding new third-party libraries](contrib.md#adding-third-party-libraries) for details.
**3.** Preference is always given to libraries that are already in use.

8
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@ -70,7 +70,13 @@ Note that integration of ClickHouse with third-party drivers is not tested. Also
Unit tests are useful when you want to test not the ClickHouse as a whole, but a single isolated library or class. You can enable or disable build of tests with `ENABLE_TESTS` CMake option. Unit tests (and other test programs) are located in `tests` subdirectories across the code. To run unit tests, type `ninja test`. Some tests use `gtest`, but some are just programs that return non-zero exit code on test failure.
It’s not necessarily to have unit tests if the code is already covered by functional tests (and functional tests are usually much more simple to use).
It’s not necessary to have unit tests if the code is already covered by functional tests (and functional tests are usually much more simple to use).
You can run individual gtest checks by calling the executable directly, for example:
```bash
$ ./src/unit_tests_dbms --gtest_filter=LocalAddress*
```
## Performance Tests {#performance-tests}

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@ -17,7 +17,7 @@ It supports non-blocking [DROP TABLE](#drop-detach-table) and [RENAME TABLE](#re
### Table UUID {#table-uuid}
All tables in database `Atomic` have persistent [UUID](../../sql-reference/data-types/uuid.md) and store data in directory `/clickhouse_path/store/xxx/xxxyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy/`, where `xxxyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy` is UUID of the table.
All tables in database `Atomic` have persistent [UUID](../../sql-reference/data-types/uuid.md) and store data in directory `/clickhouse_path/store/xxx/xxxyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy/`, where `xxxyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy` is UUID of the table.
Usually, the UUID is generated automatically, but the user can also explicitly specify the UUID in the same way when creating the table (this is not recommended). To display the `SHOW CREATE` query with the UUID you can use setting [show_table_uuid_in_table_create_query_if_not_nil](../../operations/settings/settings.md#show_table_uuid_in_table_create_query_if_not_nil). For example:
```sql
@ -47,7 +47,7 @@ EXCHANGE TABLES new_table AND old_table;
### ReplicatedMergeTree in Atomic Database {#replicatedmergetree-in-atomic-database}
For [ReplicatedMergeTree](../table-engines/mergetree-family/replication.md#table_engines-replication) tables, it is recommended to not specify engine parameters - path in ZooKeeper and replica name. In this case, configuration parameters will be used [default_replica_path](../../operations/server-configuration-parameters/settings.md#default_replica_path) and [default_replica_name](../../operations/server-configuration-parameters/settings.md#default_replica_name). If you want to specify engine parameters explicitly, it is recommended to use {uuid} macros. This is useful so that unique paths are automatically generated for each table in ZooKeeper.
For [ReplicatedMergeTree](../table-engines/mergetree-family/replication.md#table_engines-replication) tables, it is recommended to not specify engine parameters - path in ZooKeeper and replica name. In this case, configuration parameters will be used [default_replica_path](../../operations/server-configuration-parameters/settings.md#default_replica_path) and [default_replica_name](../../operations/server-configuration-parameters/settings.md#default_replica_name). If you want to specify engine parameters explicitly, it is recommended to use `{uuid}` macros. This is useful so that unique paths are automatically generated for each table in ZooKeeper.
## See Also

4
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@ -14,7 +14,7 @@ You can also use the following database engines:
- [MySQL](../../engines/database-engines/mysql.md)
- [MaterializeMySQL](../../engines/database-engines/materialize-mysql.md)
- [MaterializedMySQL](../../engines/database-engines/materialized-mysql.md)
- [Lazy](../../engines/database-engines/lazy.md)
@ -22,4 +22,4 @@ You can also use the following database engines:
- [PostgreSQL](../../engines/database-engines/postgresql.md)
[Original article](https://clickhouse.tech/docs/en/database_engines/) <!--hide-->
- [Replicated](../../engines/database-engines/replicated.md)

77
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@ -1,9 +1,11 @@
---
toc_priority: 29
toc_title: MaterializeMySQL
toc_title: MaterializedMySQL
---
# MaterializeMySQL {#materialize-mysql}
# MaterializedMySQL {#materialized-mysql}
**This is experimental feature that should not be used in production.**
Creates ClickHouse database with all the tables existing in MySQL, and all the data in those tables.
@ -15,7 +17,7 @@ This feature is experimental.
``` sql
CREATE DATABASE [IF NOT EXISTS] db_name [ON CLUSTER cluster]
ENGINE = MaterializeMySQL('host:port', ['database' | database], 'user', 'password') [SETTINGS ...]
ENGINE = MaterializedMySQL('host:port', ['database' | database], 'user', 'password') [SETTINGS ...]
```
**Engine Parameters**
@ -25,13 +27,35 @@ ENGINE = MaterializeMySQL('host:port', ['database' | database], 'user', 'passwor
- `user` — MySQL user.
- `password` — User password.
**Engine Settings**
- `max_rows_in_buffer` — Max rows that data is allowed to cache in memory(for single table and the cache data unable to query). when rows is exceeded, the data will be materialized. Default: `65505`.
- `max_bytes_in_buffer` — Max bytes that data is allowed to cache in memory(for single table and the cache data unable to query). when rows is exceeded, the data will be materialized. Default: `1048576`.
- `max_rows_in_buffers` — Max rows that data is allowed to cache in memory(for database and the cache data unable to query). when rows is exceeded, the data will be materialized. Default: `65505`.
- `max_bytes_in_buffers` — Max bytes that data is allowed to cache in memory(for database and the cache data unable to query). when rows is exceeded, the data will be materialized. Default: `1048576`.
- `max_flush_data_time` — Max milliseconds that data is allowed to cache in memory(for database and the cache data unable to query). when this time is exceeded, the data will be materialized. Default: `1000`.
- `max_wait_time_when_mysql_unavailable` — Retry interval when MySQL is not available (milliseconds). Negative value disable retry. Default: `1000`.
- `allows_query_when_mysql_lost` — Allow query materialized table when mysql is lost. Default: `0` (`false`).
```
CREATE DATABASE mysql ENGINE = MaterializedMySQL('localhost:3306', 'db', 'user', '***')
SETTINGS
allows_query_when_mysql_lost=true,
max_wait_time_when_mysql_unavailable=10000;
```
**Settings on MySQL-server side**
For the correct work of `MaterializeMySQL`, there are few mandatory `MySQL`-side configuration settings that should be set:
- `default_authentication_plugin = mysql_native_password` since `MaterializeMySQL` can only authorize with this method.
- `gtid_mode = on` since GTID based logging is a mandatory for providing correct `MaterializeMySQL` replication. Pay attention that while turning this mode `On` you should also specify `enforce_gtid_consistency = on`.
## Virtual columns {#virtual-columns}
When working with the `MaterializeMySQL` database engine, [ReplacingMergeTree](../../engines/table-engines/mergetree-family/replacingmergetree.md) tables are used with virtual `_sign` and `_version` columns.
When working with the `MaterializedMySQL` database engine, [ReplacingMergeTree](../../engines/table-engines/mergetree-family/replacingmergetree.md) tables are used with virtual `_sign` and `_version` columns.
- `_version` — Transaction counter. Type [UInt64](../../sql-reference/data-types/int-uint.md).
- `_sign` — Deletion mark. Type [Int8](../../sql-reference/data-types/int-uint.md). Possible values:
- `1` — Row is not deleted,
- `1` — Row is not deleted,
- `-1` — Row is deleted.
## Data Types Support {#data_types-support}
@ -53,6 +77,7 @@ When working with the `MaterializeMySQL` database engine, [ReplacingMergeTree](.
| STRING | [String](../../sql-reference/data-types/string.md) |
| VARCHAR, VAR_STRING | [String](../../sql-reference/data-types/string.md) |
| BLOB | [String](../../sql-reference/data-types/string.md) |
| BINARY | [FixedString](../../sql-reference/data-types/fixedstring.md) |
Other types are not supported. If MySQL table contains a column of such type, ClickHouse throws exception "Unhandled data type" and stops replication.
@ -60,28 +85,38 @@ Other types are not supported. If MySQL table contains a column of such type, Cl
## Specifics and Recommendations {#specifics-and-recommendations}
### Compatibility restrictions
Apart of the data types limitations there are few restrictions comparing to `MySQL` databases, that should be resolved before replication will be possible:
- Each table in `MySQL` should contain `PRIMARY KEY`.
- Replication for tables, those are containing rows with `ENUM` field values out of range (specified in `ENUM` signature) will not work.
### DDL Queries {#ddl-queries}
MySQL DDL queries are converted into the corresponding ClickHouse DDL queries ([ALTER](../../sql-reference/statements/alter/index.md), [CREATE](../../sql-reference/statements/create/index.md), [DROP](../../sql-reference/statements/drop.md), [RENAME](../../sql-reference/statements/rename.md)). If ClickHouse cannot parse some DDL query, the query is ignored.
### Data Replication {#data-replication}
`MaterializeMySQL` does not support direct `INSERT`, `DELETE` and `UPDATE` queries. However, they are supported in terms of data replication:
`MaterializedMySQL` does not support direct `INSERT`, `DELETE` and `UPDATE` queries. However, they are supported in terms of data replication:
- MySQL `INSERT` query is converted into `INSERT` with `_sign=1`.
- MySQL `DELETE` query is converted into `INSERT` with `_sign=-1`.
- MySQL `DELETE` query is converted into `INSERT` with `_sign=-1`.
- MySQL `UPDATE` query is converted into `INSERT` with `_sign=-1` and `INSERT` with `_sign=1`.
### Selecting from MaterializeMySQL Tables {#select}
### Selecting from MaterializedMySQL Tables {#select}
`SELECT` query from `MaterializeMySQL` tables has some specifics:
`SELECT` query from `MaterializedMySQL` tables has some specifics:
- If `_version` is not specified in the `SELECT` query, [FINAL](../../sql-reference/statements/select/from.md#select-from-final) modifier is used. So only rows with `MAX(_version)` are selected.
- If `_sign` is not specified in the `SELECT` query, `WHERE _sign=1` is used by default. So the deleted rows are not included into the result set.
- The result includes columns comments in case they exist in MySQL database tables.
### Index Conversion {#index-conversion}
MySQL `PRIMARY KEY` and `INDEX` clauses are converted into `ORDER BY` tuples in ClickHouse tables.
@ -91,10 +126,10 @@ ClickHouse has only one physical order, which is determined by `ORDER BY` clause
**Notes**
- Rows with `_sign=-1` are not deleted physically from the tables.
- Cascade `UPDATE/DELETE` queries are not supported by the `MaterializeMySQL` engine.
- Cascade `UPDATE/DELETE` queries are not supported by the `MaterializedMySQL` engine.
- Replication can be easily broken.
- Manual operations on database and tables are forbidden.
- `MaterializeMySQL` is influenced by [optimize_on_insert](../../operations/settings/settings.md#optimize-on-insert) setting. The data is merged in the corresponding table in the `MaterializeMySQL` database when a table in the MySQL server changes.
- `MaterializedMySQL` is influenced by [optimize_on_insert](../../operations/settings/settings.md#optimize-on-insert) setting. The data is merged in the corresponding table in the `MaterializedMySQL` database when a table in the MySQL server changes.
## Examples of Use {#examples-of-use}
@ -111,9 +146,9 @@ mysql> SELECT * FROM test;
```
```text
+---+------+------+
+---+------+------+
| a | b | c |
+---+------+------+
+---+------+------+
| 2 | 222 | Wow! |
+---+------+------+
```
@ -123,7 +158,7 @@ Database in ClickHouse, exchanging data with the MySQL server:
The database and the table created:
``` sql
CREATE DATABASE mysql ENGINE = MaterializeMySQL('localhost:3306', 'db', 'user', '***');
CREATE DATABASE mysql ENGINE = MaterializedMySQL('localhost:3306', 'db', 'user', '***');
SHOW TABLES FROM mysql;
```
@ -140,9 +175,9 @@ SELECT * FROM mysql.test;
```
``` text
┌─a─┬──b─┐
│ 1 │ 11 │
│ 2 │ 22 │
┌─a─┬──b─┐
│ 1 │ 11 │
│ 2 │ 22 │
└───┴────┘
```
@ -153,9 +188,9 @@ SELECT * FROM mysql.test;
```
``` text
┌─a─┬───b─┬─c────┐
│ 2 │ 222 │ Wow! │
┌─a─┬───b─┬─c────┐
│ 2 │ 222 │ Wow! │
└───┴─────┴──────┘
```
[Original article](https://clickhouse.tech/docs/en/engines/database-engines/materialize-mysql/) <!--hide-->
[Original article](https://clickhouse.tech/docs/en/engines/database-engines/materialized-mysql/) <!--hide-->

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@ -53,7 +53,7 @@ All other MySQL data types are converted into [String](../../sql-reference/data-
## Global Variables Support {#global-variables-support}
For better compatibility you may address global variables in MySQL style, as `@@identifier`.
For better compatibility you may address global variables in MySQL style, as `@@identifier`.
These variables are supported:
- `version`

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@ -14,8 +14,8 @@ Supports table structure modifications (`ALTER TABLE ... ADD|DROP COLUMN`). If `
## Creating a Database {#creating-a-database}
``` sql
CREATE DATABASE test_database
ENGINE = PostgreSQL('host:port', 'database', 'user', 'password'[, `use_table_cache`]);
CREATE DATABASE test_database
ENGINE = PostgreSQL('host:port', 'database', 'user', 'password'[, `schema`, `use_table_cache`]);
```
**Engine Parameters**
@ -24,6 +24,7 @@ ENGINE = PostgreSQL('host:port', 'database', 'user', 'password'[, `use_table_cac
- `database` — Remote database name.
- `user` — PostgreSQL user.
- `password` — User password.
- `schema` — PostgreSQL schema.
- `use_table_cache` — Defines if the database table structure is cached or not. Optional. Default value: `0`.
## Data Types Support {#data_types-support}
@ -43,14 +44,14 @@ ENGINE = PostgreSQL('host:port', 'database', 'user', 'password'[, `use_table_cac
| TEXT, CHAR | [String](../../sql-reference/data-types/string.md) |
| INTEGER | Nullable([Int32](../../sql-reference/data-types/int-uint.md))|
| ARRAY | [Array](../../sql-reference/data-types/array.md) |
## Examples of Use {#examples-of-use}
Database in ClickHouse, exchanging data with the PostgreSQL server:
``` sql
CREATE DATABASE test_database
CREATE DATABASE test_database
ENGINE = PostgreSQL('postgres1:5432', 'test_database', 'postgres', 'mysecretpassword', 1);
```
@ -102,7 +103,7 @@ SELECT * FROM test_database.test_table;
└────────┴───────┘
```
Consider the table structure was modified in PostgreSQL:
Consider the table structure was modified in PostgreSQL:
``` sql
postgre> ALTER TABLE test_table ADD COLUMN data Text

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@ -0,0 +1,115 @@
# [experimental] Replicated {#replicated}
The engine is based on the [Atomic](../../engines/database-engines/atomic.md) engine. It supports replication of metadata via DDL log being written to ZooKeeper and executed on all of the replicas for a given database.
One ClickHouse server can have multiple replicated databases running and updating at the same time. But there can't be multiple replicas of the same replicated database.
## Creating a Database {#creating-a-database}
``` sql
CREATE DATABASE testdb ENGINE = Replicated('zoo_path', 'shard_name', 'replica_name') [SETTINGS ...]
```
**Engine Parameters**
- `zoo_path` — ZooKeeper path. The same ZooKeeper path corresponds to the same database.
- `shard_name` — Shard name. Database replicas are grouped into shards by `shard_name`.
- `replica_name` — Replica name. Replica names must be different for all replicas of the same shard.
!!! note "Warning"
For [ReplicatedMergeTree](../table-engines/mergetree-family/replication.md#table_engines-replication) tables if no arguments provided, then default arguments are used: `/clickhouse/tables/{uuid}/{shard}` and `{replica}`. These can be changed in the server settings [default_replica_path](../../operations/server-configuration-parameters/settings.md#default_replica_path) and [default_replica_name](../../operations/server-configuration-parameters/settings.md#default_replica_name). Macro `{uuid}` is unfolded to table's uuid, `{shard}` and `{replica}` are unfolded to values from server config, not from database engine arguments. But in the future, it will be possible to use `shard_name` and `replica_name` of Replicated database.
## Specifics and Recommendations {#specifics-and-recommendations}
DDL queries with `Replicated` database work in a similar way to [ON CLUSTER](../../sql-reference/distributed-ddl.md) queries, but with minor differences.
First, the DDL request tries to execute on the initiator (the host that originally received the request from the user). If the request is not fulfilled, then the user immediately receives an error, other hosts do not try to fulfill it. If the request has been successfully completed on the initiator, then all other hosts will automatically retry until they complete it. The initiator will try to wait for the query to be completed on other hosts (no longer than [distributed_ddl_task_timeout](../../operations/settings/settings.md#distributed_ddl_task_timeout)) and will return a table with the query execution statuses on each host.
The behavior in case of errors is regulated by the [distributed_ddl_output_mode](../../operations/settings/settings.md#distributed_ddl_output_mode) setting, for a `Replicated` database it is better to set it to `null_status_on_timeout` — i.e. if some hosts did not have time to execute the request for [distributed_ddl_task_timeout](../../operations/settings/settings.md#distributed_ddl_task_timeout), then do not throw an exception, but show the `NULL` status for them in the table.
The [system.clusters](../../operations/system-tables/clusters.md) system table contains a cluster named like the replicated database, which consists of all replicas of the database. This cluster is updated automatically when creating/deleting replicas, and it can be used for [Distributed](../../engines/table-engines/special/distributed.md#distributed) tables.
When creating a new replica of the database, this replica creates tables by itself. If the replica has been unavailable for a long time and has lagged behind the replication log — it checks its local metadata with the current metadata in ZooKeeper, moves the extra tables with data to a separate non-replicated database (so as not to accidentally delete anything superfluous), creates the missing tables, updates the table names if they have been renamed. The data is replicated at the `ReplicatedMergeTree` level, i.e. if the table is not replicated, the data will not be replicated (the database is responsible only for metadata).
## Usage Example {#usage-example}
Creating a cluster with three hosts:
``` sql
node1 :) CREATE DATABASE r ENGINE=Replicated('some/path/r','shard1','replica1');
node2 :) CREATE DATABASE r ENGINE=Replicated('some/path/r','shard1','other_replica');
node3 :) CREATE DATABASE r ENGINE=Replicated('some/path/r','other_shard','{replica}');
```
Running the DDL-query:
``` sql
CREATE TABLE r.rmt (n UInt64) ENGINE=ReplicatedMergeTree ORDER BY n;
```
``` text
┌─────hosts────────────┬──status─┬─error─┬─num_hosts_remaining─┬─num_hosts_active─┐
│ shard1|replica1 │ 0 │ │ 2 │ 0 │
│ shard1|other_replica │ 0 │ │ 1 │ 0 │
│ other_shard|r1 │ 0 │ │ 0 │ 0 │
└──────────────────────┴─────────┴───────┴─────────────────────┴──────────────────┘
```
Showing the system table:
``` sql
SELECT cluster, shard_num, replica_num, host_name, host_address, port, is_local
FROM system.clusters WHERE cluster='r';
```
``` text
┌─cluster─┬─shard_num─┬─replica_num─┬─host_name─┬─host_address─┬─port─┬─is_local─┐
│ r │ 1 │ 1 │ node3 │ 127.0.0.1 │ 9002 │ 0 │
│ r │ 2 │ 1 │ node2 │ 127.0.0.1 │ 9001 │ 0 │
│ r │ 2 │ 2 │ node1 │ 127.0.0.1 │ 9000 │ 1 │
└─────────┴───────────┴─────────────┴───────────┴──────────────┴──────┴──────────┘
```
Creating a distributed table and inserting the data:
``` sql
node2 :) CREATE TABLE r.d (n UInt64) ENGINE=Distributed('r','r','rmt', n % 2);
node3 :) INSERT INTO r SELECT * FROM numbers(10);
node1 :) SELECT materialize(hostName()) AS host, groupArray(n) FROM r.d GROUP BY host;
```
``` text
┌─hosts─┬─groupArray(n)─┐
│ node1 │ [1,3,5,7,9] │
│ node2 │ [0,2,4,6,8] │
└───────┴───────────────┘
```
Adding replica on the one more host:
``` sql
node4 :) CREATE DATABASE r ENGINE=Replicated('some/path/r','other_shard','r2');
```
The cluster configuration will look like this:
``` text
┌─cluster─┬─shard_num─┬─replica_num─┬─host_name─┬─host_address─┬─port─┬─is_local─┐
│ r │ 1 │ 1 │ node3 │ 127.0.0.1 │ 9002 │ 0 │
│ r │ 1 │ 2 │ node4 │ 127.0.0.1 │ 9003 │ 0 │
│ r │ 2 │ 1 │ node2 │ 127.0.0.1 │ 9001 │ 0 │
│ r │ 2 │ 2 │ node1 │ 127.0.0.1 │ 9000 │ 1 │
└─────────┴───────────┴─────────────┴───────────┴──────────────┴──────┴──────────┘
```
The distributed table also will get data from the new host:
```sql
node2 :) SELECT materialize(hostName()) AS host, groupArray(n) FROM r.d GROUP BY host;
```
```text
┌─hosts─┬─groupArray(n)─┐
│ node2 │ [1,3,5,7,9] │
│ node4 │ [0,2,4,6,8] │
└───────┴───────────────┘
```

2
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@ -35,7 +35,7 @@ The table structure can differ from the original table structure:
- `password` — User password.
## Implementation Details {#implementation-details}
Supports multiple replicas that must be listed by `|` and shards must be listed by `,`. For example:
```sql

44
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@ -20,7 +20,7 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name [ON CLUSTER cluster]
Required parameters:
- `primary_key_name` – any column name in the column list.
- `primary_key_name` – any column name in the column list.
- `primary key` must be specified, it supports only one column in the primary key. The primary key will be serialized in binary as a `rocksdb key`.
- columns other than the primary key will be serialized in binary as `rocksdb` value in corresponding order.
- queries with key `equals` or `in` filtering will be optimized to multi keys lookup from `rocksdb`.
@ -39,4 +39,46 @@ ENGINE = EmbeddedRocksDB
PRIMARY KEY key
```
## Metrics
There is also `system.rocksdb` table, that expose rocksdb statistics:
```sql
SELECT
name,
value
FROM system.rocksdb
┌─name──────────────────────┬─value─┐
│ no.file.opens │ 1 │
│ number.block.decompressed │ 1 │
└───────────────────────────┴───────┘
```
## Configuration
You can also change any [rocksdb options](https://github.com/facebook/rocksdb/wiki/Option-String-and-Option-Map) using config:
```xml
<rocksdb>
<options>
<max_background_jobs>8</max_background_jobs>
</options>
<column_family_options>
<num_levels>2</num_levels>
</column_family_options>
<tables>
<table>
<name>TABLE</name>
<options>
<max_background_jobs>8</max_background_jobs>
</options>
<column_family_options>
<num_levels>2</num_levels>
</column_family_options>
</table>
</tables>
</rocksdb>
```
[Original article](https://clickhouse.tech/docs/en/engines/table-engines/integrations/embedded-rocksdb/) <!--hide-->

18
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@ -15,7 +15,7 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name
name1 [type1],
name2 [type2],
...
) ENGINE = MongoDB(host:port, database, collection, user, password);
) ENGINE = MongoDB(host:port, database, collection, user, password [, options]);
```
**Engine Parameters**
@ -30,18 +30,30 @@ CREATE TABLE [IF NOT EXISTS] [db.]table_name
- `password` — User password.
- `options` — MongoDB connection string options (optional parameter).
## Usage Example {#usage-example}
Table in ClickHouse which allows to read data from MongoDB collection:
Create a table in ClickHouse which allows to read data from MongoDB collection:
``` text
CREATE TABLE mongo_table
(
key UInt64,
key UInt64,
data String
) ENGINE = MongoDB('mongo1:27017', 'test', 'simple_table', 'testuser', 'clickhouse');
```
To read from an SSL secured MongoDB server:
``` text
CREATE TABLE mongo_table_ssl
(
key UInt64,
data String
) ENGINE = MongoDB('mongo2:27017', 'test', 'simple_table', 'testuser', 'clickhouse', 'ssl=true');
```
Query:
``` sql

4
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@ -49,14 +49,14 @@ PostgreSQL `Array` types are converted into ClickHouse arrays.
!!! info "Note"
Be careful - in PostgreSQL an array data, created like a `type_name[]`, may contain multi-dimensional arrays of different dimensions in different table rows in same column. But in ClickHouse it is only allowed to have multidimensional arrays of the same count of dimensions in all table rows in same column.
Supports multiple replicas that must be listed by `|`. For example:
```sql
CREATE TABLE test_replicas (id UInt32, name String) ENGINE = PostgreSQL(`postgres{2|3|4}:5432`, 'clickhouse', 'test_replicas', 'postgres', 'mysecretpassword');
```
Replicas priority for PostgreSQL dictionary source is supported. The bigger the number in map, the less the priority. The highest priority is `0`.
Replicas priority for PostgreSQL dictionary source is supported. The bigger the number in map, the less the priority. The highest priority is `0`.
In the example below replica `example01-1` has the highest priority:

2
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@ -14,6 +14,8 @@ Engines of the family:
- [Log](../../../engines/table-engines/log-family/log.md)
- [TinyLog](../../../engines/table-engines/log-family/tinylog.md)
`Log` family table engines can store data to [HDFS](../../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-hdfs) or [S3](../../../engines/table-engines/mergetree-family/mergetree.md#table_engine-mergetree-s3) distributed file systems.
## Common Properties {#common-properties}
Engines:

8
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@ -5,10 +5,8 @@ toc_title: Log
# Log {#log}
Engine belongs to the family of log engines. See the common properties of log engines and their differences in the [Log Engine Family](../../../engines/table-engines/log-family/index.md) article.
The engine belongs to the family of `Log` engines. See the common properties of `Log` engines and their differences in the [Log Engine Family](../../../engines/table-engines/log-family/index.md) article.
Log differs from [TinyLog](../../../engines/table-engines/log-family/tinylog.md) in that a small file of “marks” resides with the column files. These marks are written on every data block and contain offsets that indicate where to start reading the file in order to skip the specified number of rows. This makes it possible to read table data in multiple threads.
`Log` differs from [TinyLog](../../../engines/table-engines/log-family/tinylog.md) in that a small file of "marks" resides with the column files. These marks are written on every data block and contain offsets that indicate where to start reading the file in order to skip the specified number of rows. This makes it possible to read table data in multiple threads.
For concurrent data access, the read operations can be performed simultaneously, while write operations block reads and each other.
The Log engine does not support indexes. Similarly, if writing to a table failed, the table is broken, and reading from it returns an error. The Log engine is appropriate for temporary data, write-once tables, and for testing or demonstration purposes.
[Original article](https://clickhouse.tech/docs/en/operations/table_engines/log/) <!--hide-->
The `Log` engine does not support indexes. Similarly, if writing to a table failed, the table is broken, and reading from it returns an error. The `Log` engine is appropriate for temporary data, write-once tables, and for testing or demonstration purposes.

52
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@ -76,7 +76,7 @@ For a description of parameters, see the [CREATE query description](../../../sql
- `SAMPLE BY` — An expression for sampling. Optional.
If a sampling expression is used, the primary key must contain it. Example: `SAMPLE BY intHash32(UserID) ORDER BY (CounterID, EventDate, intHash32(UserID))`.
If a sampling expression is used, the primary key must contain it. The result of sampling expression must be unsigned integer. Example: `SAMPLE BY intHash32(UserID) ORDER BY (CounterID, EventDate, intHash32(UserID))`.
- `TTL` — A list of rules specifying storage duration of rows and defining logic of automatic parts movement [between disks and volumes](#table_engine-mergetree-multiple-volumes). Optional.
@ -728,7 +728,9 @@ During this time, they are not moved to other volumes or disks. Therefore, until
## Using S3 for Data Storage {#table_engine-mergetree-s3}
`MergeTree` family table engines is able to store data to [S3](https://aws.amazon.com/s3/) using a disk with type `s3`.
`MergeTree` family table engines can store data to [S3](https://aws.amazon.com/s3/) using a disk with type `s3`.
This feature is under development and not ready for production. There are known drawbacks such as very low performance.
Configuration markup:
``` xml
@ -762,11 +764,13 @@ Configuration markup:
```
Required parameters:
- `endpoint` — S3 endpoint url in `path` or `virtual hosted` [styles](https://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html). Endpoint url should contain bucket and root path to store data.
- `endpoint` — S3 endpoint URL in `path` or `virtual hosted` [styles](https://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html). Endpoint URL should contain a bucket and root path to store data.
- `access_key_id` — S3 access key id.
- `secret_access_key` — S3 secret access key.
Optional parameters:
- `region` — S3 region name.
- `use_environment_credentials` — Reads AWS credentials from the Environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN if they exist. Default value is `false`.
- `use_insecure_imds_request` — If set to `true`, S3 client will use insecure IMDS request while obtaining credentials from Amazon EC2 metadata. Default value is `false`.
@ -782,7 +786,6 @@ Optional parameters:
- `skip_access_check` — If true, disk access checks will not be performed on disk start-up. Default value is `false`.
- `server_side_encryption_customer_key_base64` — If specified, required headers for accessing S3 objects with SSE-C encryption will be set.
S3 disk can be configured as `main` or `cold` storage:
``` xml
<storage_configuration>
@ -821,4 +824,43 @@ S3 disk can be configured as `main` or `cold` storage:
In case of `cold` option a data can be moved to S3 if local disk free size will be smaller than `move_factor * disk_size` or by TTL move rule.
[Original article](https://clickhouse.tech/docs/ru/operations/table_engines/mergetree/) <!--hide-->
## Using HDFS for Data Storage {#table_engine-mergetree-hdfs}
[HDFS](https://hadoop.apache.org/docs/r1.2.1/hdfs_design.html) is a distributed file system for remote data storage.
`MergeTree` family table engines can store data to HDFS using a disk with type `HDFS`.
Configuration markup:
``` xml
<yandex>
<storage_configuration>
<disks>
<hdfs>
<type>hdfs</type>
<endpoint>hdfs://hdfs1:9000/clickhouse/</endpoint>
</hdfs>
</disks>
<policies>
<hdfs>
<volumes>
<main>
<disk>hdfs</disk>
</main>
</volumes>
</hdfs>
</policies>
</storage_configuration>
<merge_tree>
<min_bytes_for_wide_part>0</min_bytes_for_wide_part>
</merge_tree>
</yandex>
```
Required parameters:
- `endpoint` — HDFS endpoint URL in `path` format. Endpoint URL should contain a root path to store data.
Optional parameters:
- `min_bytes_for_seek` — The minimal number of bytes to use seek operation instead of sequential read. Default value: `1 Mb`.

8
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@ -101,7 +101,7 @@ For very large clusters, you can use different ZooKeeper clusters for different
Replication is asynchronous and multi-master. `INSERT` queries (as well as `ALTER`) can be sent to any available server. Data is inserted on the server where the query is run, and then it is copied to the other servers. Because it is asynchronous, recently inserted data appears on the other replicas with some latency. If part of the replicas are not available, the data is written when they become available. If a replica is available, the latency is the amount of time it takes to transfer the block of compressed data over the network. The number of threads performing background tasks for replicated tables can be set by [background_schedule_pool_size](../../../operations/settings/settings.md#background_schedule_pool_size) setting.
`ReplicatedMergeTree` engine uses a separate thread pool for replicated fetches. Size of the pool is limited by the [background_fetches_pool_size](../../../operations/settings/settings.md#background_fetches_pool_size) setting which can be tuned with a server restart.
`ReplicatedMergeTree` engine uses a separate thread pool for replicated fetches. Size of the pool is limited by the [background_fetches_pool_size](../../../operations/settings/settings.md#background_fetches_pool_size) setting which can be tuned with a server restart.
By default, an INSERT query waits for confirmation of writing the data from only one replica. If the data was successfully written to only one replica and the server with this replica ceases to exist, the stored data will be lost. To enable getting confirmation of data writes from multiple replicas, use the `insert_quorum` option.
@ -155,7 +155,7 @@ CREATE TABLE table_name
</details>
As the example shows, these parameters can contain substitutions in curly brackets. The substituted values are taken from the «[macros](../../../operations/server-configuration-parameters/settings/#macros) section of the configuration file.
As the example shows, these parameters can contain substitutions in curly brackets. The substituted values are taken from the «[macros](../../../operations/server-configuration-parameters/settings/#macros) section of the configuration file.
Example:
@ -198,7 +198,7 @@ In this case, you can omit arguments when creating tables:
``` sql
CREATE TABLE table_name (
x UInt32
) ENGINE = ReplicatedMergeTree
) ENGINE = ReplicatedMergeTree
ORDER BY x;
```
@ -207,7 +207,7 @@ It is equivalent to:
``` sql
CREATE TABLE table_name (
x UInt32
) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/{database}/table_name', '{replica}')
) ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/{database}/table_name', '{replica}')
ORDER BY x;
```

8
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@ -37,6 +37,14 @@ Also, it accepts the following settings:
- `max_delay_to_insert` - max delay of inserting data into Distributed table in seconds, if there are a lot of pending bytes for async send. Default 60.
- `monitor_batch_inserts` - same as [distributed_directory_monitor_batch_inserts](../../../operations/settings/settings.md#distributed_directory_monitor_batch_inserts)
- `monitor_split_batch_on_failure` - same as [distributed_directory_monitor_split_batch_on_failure](../../../operations/settings/settings.md#distributed_directory_monitor_split_batch_on_failure)
- `monitor_sleep_time_ms` - same as [distributed_directory_monitor_sleep_time_ms](../../../operations/settings/settings.md#distributed_directory_monitor_sleep_time_ms)
- `monitor_max_sleep_time_ms` - same as [distributed_directory_monitor_max_sleep_time_ms](../../../operations/settings/settings.md#distributed_directory_monitor_max_sleep_time_ms)
!!! note "Note"
**Durability settings** (`fsync_...`):

33
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@ -1130,17 +1130,18 @@ The table below shows supported data types and how they match ClickHouse [data t
| `boolean`, `int`, `long`, `float`, `double` | [Int64](../sql-reference/data-types/int-uint.md), [UInt64](../sql-reference/data-types/int-uint.md) | `long` |
| `boolean`, `int`, `long`, `float`, `double` | [Float32](../sql-reference/data-types/float.md) | `float` |
| `boolean`, `int`, `long`, `float`, `double` | [Float64](../sql-reference/data-types/float.md) | `double` |
| `bytes`, `string`, `fixed`, `enum` | [String](../sql-reference/data-types/string.md) | `bytes` |
| `bytes`, `string`, `fixed`, `enum` | [String](../sql-reference/data-types/string.md) | `bytes` or `string` \* |
| `bytes`, `string`, `fixed` | [FixedString(N)](../sql-reference/data-types/fixedstring.md) | `fixed(N)` |
| `enum` | [Enum(8\|16)](../sql-reference/data-types/enum.md) | `enum` |
| `array(T)` | [Array(T)](../sql-reference/data-types/array.md) | `array(T)` |
| `union(null, T)`, `union(T, null)` | [Nullable(T)](../sql-reference/data-types/date.md) | `union(null, T)` |
| `null` | [Nullable(Nothing)](../sql-reference/data-types/special-data-types/nothing.md) | `null` |
| `int (date)` \* | [Date](../sql-reference/data-types/date.md) | `int (date)` \* |
| `long (timestamp-millis)` \* | [DateTime64(3)](../sql-reference/data-types/datetime.md) | `long (timestamp-millis)` \* |
| `long (timestamp-micros)` \* | [DateTime64(6)](../sql-reference/data-types/datetime.md) | `long (timestamp-micros)` \* |
| `int (date)` \** | [Date](../sql-reference/data-types/date.md) | `int (date)` \** |
| `long (timestamp-millis)` \** | [DateTime64(3)](../sql-reference/data-types/datetime.md) | `long (timestamp-millis)` \* |
| `long (timestamp-micros)` \** | [DateTime64(6)](../sql-reference/data-types/datetime.md) | `long (timestamp-micros)` \* |
\* [Avro logical types](https://avro.apache.org/docs/current/spec.html#Logical+Types)
\* `bytes` is default, controlled by [output_format_avro_string_column_pattern](../operations/settings/settings.md#settings-output_format_avro_string_column_pattern)
\** [Avro logical types](https://avro.apache.org/docs/current/spec.html#Logical+Types)
Unsupported Avro data types: `record` (non-root), `map`
@ -1246,12 +1247,14 @@ The table below shows supported data types and how they match ClickHouse [data t
| `DOUBLE` | [Float64](../sql-reference/data-types/float.md) | `DOUBLE` |
| `DATE32` | [Date](../sql-reference/data-types/date.md) | `UINT16` |
| `DATE64`, `TIMESTAMP` | [DateTime](../sql-reference/data-types/datetime.md) | `UINT32` |
| `STRING`, `BINARY` | [String](../sql-reference/data-types/string.md) | `STRING` |
| — | [FixedString](../sql-reference/data-types/fixedstring.md) | `STRING` |
| `STRING`, `BINARY` | [String](../sql-reference/data-types/string.md) | `BINARY` |
| — | [FixedString](../sql-reference/data-types/fixedstring.md) | `BINARY` |
| `DECIMAL` | [Decimal](../sql-reference/data-types/decimal.md) | `DECIMAL` |
| `LIST` | [Array](../sql-reference/data-types/array.md) | `LIST` |
| `STRUCT` | [Tuple](../sql-reference/data-types/tuple.md) | `STRUCT` |
| `MAP` | [Map](../sql-reference/data-types/map.md) | `MAP` |
Arrays can be nested and can have a value of the `Nullable` type as an argument.
Arrays can be nested and can have a value of the `Nullable` type as an argument. `Tuple` and `Map` types also can be nested.
ClickHouse supports configurable precision of `Decimal` type. The `INSERT` query treats the Parquet `DECIMAL` type as the ClickHouse `Decimal128` type.
@ -1299,13 +1302,17 @@ The table below shows supported data types and how they match ClickHouse [data t
| `DOUBLE` | [Float64](../sql-reference/data-types/float.md) | `FLOAT64` |
| `DATE32` | [Date](../sql-reference/data-types/date.md) | `UINT16` |
| `DATE64`, `TIMESTAMP` | [DateTime](../sql-reference/data-types/datetime.md) | `UINT32` |
| `STRING`, `BINARY` | [String](../sql-reference/data-types/string.md) | `UTF8` |
| `STRING`, `BINARY` | [FixedString](../sql-reference/data-types/fixedstring.md) | `UTF8` |
| `STRING`, `BINARY` | [String](../sql-reference/data-types/string.md) | `BINARY` |
| `STRING`, `BINARY` | [FixedString](../sql-reference/data-types/fixedstring.md) | `BINARY` |
| `DECIMAL` | [Decimal](../sql-reference/data-types/decimal.md) | `DECIMAL` |
| `DECIMAL256` | [Decimal256](../sql-reference/data-types/decimal.md)| `DECIMAL256` |
| `LIST` | [Array](../sql-reference/data-types/array.md) | `LIST` |
| `STRUCT` | [Tuple](../sql-reference/data-types/tuple.md) | `STRUCT` |
| `MAP` | [Map](../sql-reference/data-types/map.md) | `MAP` |
Arrays can be nested and can have a value of the `Nullable` type as an argument.
Arrays can be nested and can have a value of the `Nullable` type as an argument. `Tuple` and `Map` types also can be nested.
The `DICTIONARY` type is supported for `INSERT` queries, and for `SELECT` queries there is an [output_format_arrow_low_cardinality_as_dictionary](../operations/settings/settings.md#output-format-arrow-low-cardinality-as-dictionary) setting that allows to output [LowCardinality](../sql-reference/data-types/lowcardinality.md) type as a `DICTIONARY` type.
ClickHouse supports configurable precision of the `Decimal` type. The `INSERT` query treats the Arrow `DECIMAL` type as the ClickHouse `Decimal128` type.
@ -1358,8 +1365,10 @@ The table below shows supported data types and how they match ClickHouse [data t
| `STRING`, `BINARY` | [String](../sql-reference/data-types/string.md) | `BINARY` |
| `DECIMAL` | [Decimal](../sql-reference/data-types/decimal.md) | `DECIMAL` |
| `LIST` | [Array](../sql-reference/data-types/array.md) | `LIST` |
| `STRUCT` | [Tuple](../sql-reference/data-types/tuple.md) | `STRUCT` |
| `MAP` | [Map](../sql-reference/data-types/map.md) | `MAP` |
Arrays can be nested and can have a value of the `Nullable` type as an argument.
Arrays can be nested and can have a value of the `Nullable` type as an argument. `Tuple` and `Map` types also can be nested.
ClickHouse supports configurable precision of the `Decimal` type. The `INSERT` query treats the ORC `DECIMAL` type as the ClickHouse `Decimal128` type.

2
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@ -16,7 +16,7 @@ $ curl 'http://localhost:8123/'
Ok.
```
Web UI can be accessed here: `http://localhost:8123/play`.
Web UI can be accessed here: `http://localhost:8123/play`.
![Web UI](../images/play.png)

2
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@ -84,6 +84,8 @@ Features:
- Table data preview.
- Full-text search.
By default, DBeaver does not connect using a session (the CLI for example does). If you require session support (for example to set settings for your session), edit the driver connection properties and set session_id to a random string (it uses the http connection under the hood). Then you can use any setting from the query window
### clickhouse-cli {#clickhouse-cli}
[clickhouse-cli](https://github.com/hatarist/clickhouse-cli) is an alternative command-line client for ClickHouse, written in Python 3.

2
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@ -43,7 +43,7 @@ toc_title: Integrations
- Monitoring
- [Graphite](https://graphiteapp.org)
- [graphouse](https://github.com/yandex/graphouse)
- [carbon-clickhouse](https://github.com/lomik/carbon-clickhouse) +
- [carbon-clickhouse](https://github.com/lomik/carbon-clickhouse)
- [graphite-clickhouse](https://github.com/lomik/graphite-clickhouse)
- [graphite-ch-optimizer](https://github.com/innogames/graphite-ch-optimizer) - optimizes staled partitions in [\*GraphiteMergeTree](../../engines/table-engines/mergetree-family/graphitemergetree.md#graphitemergetree) if rules from [rollup configuration](../../engines/table-engines/mergetree-family/graphitemergetree.md#rollup-configuration) could be applied
- [Grafana](https://grafana.com/)

2
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@ -115,6 +115,7 @@ toc_title: Adopters
| <a href="http://english.sina.com/index.html" class="favicon">Sina</a> | News | — | — | — | [Slides in Chinese, October 2018](https://github.com/ClickHouse/clickhouse-presentations/blob/master/meetup19/6.%20ClickHouse最佳实践%20高鹏_新浪.pdf) |
| <a href="https://smi2.ru/" class="favicon">SMI2</a> | News | Analytics | — | — | [Blog Post in Russian, November 2017](https://habr.com/ru/company/smi2/blog/314558/) |
| <a href="https://www.spark.co.nz/" class="favicon">Spark New Zealand</a> | Telecommunications | Security Operations | — | — | [Blog Post, Feb 2020](https://blog.n0p.me/2020/02/2020-02-05-dnsmonster/) |
| <a href="https://splitbee.io" class="favicon">Splitbee</a> | Analytics | Main Product | — | — | [Blog Post, Mai 2021](https://splitbee.io/blog/new-pricing) |
| <a href="https://www.splunk.com/" class="favicon">Splunk</a> | Business Analytics | Main product | — | — | [Slides in English, January 2018](https://github.com/ClickHouse/clickhouse-presentations/blob/master/meetup12/splunk.pdf) |
| <a href="https://www.spotify.com" class="favicon">Spotify</a> | Music | Experimentation | — | — | [Slides, July 2018](https://www.slideshare.net/glebus/using-clickhouse-for-experimentation-104247173) |
| <a href="https://www.staffcop.ru/" class="favicon">Staffcop</a> | Information Security | Main Product | — | — | [Official website, Documentation](https://www.staffcop.ru/sce43) |
@ -157,5 +158,6 @@ toc_title: Adopters
| <a href="https://signoz.io/" class="favicon">SigNoz</a> | Observability Platform | Main Product | — | — | [Source code](https://github.com/SigNoz/signoz) |
| <a href="https://chelpipegroup.com/" class="favicon">ChelPipe Group</a> | Analytics | — | — | — | [Blog post, June 2021](https://vc.ru/trade/253172-tyazhelomu-proizvodstvu-user-friendly-sayt-internet-magazin-trub-dlya-chtpz) |
| <a href="https://zagravagames.com/en/" class="favicon">Zagrava Trading</a> | — | — | — | — | [Job offer, May 2021](https://twitter.com/datastackjobs/status/1394707267082063874) |
| <a href="https://beeline.ru/" class="favicon">Beeline</a> | Telecom | Data Platform | — | — | [Blog post, July 2021](https://habr.com/en/company/beeline/blog/567508/) |
[Original article](https://clickhouse.tech/docs/en/introduction/adopters/) <!--hide-->

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@ -10,7 +10,7 @@ ClickHouse server use [ZooKeeper](https://zookeeper.apache.org/) coordination sy
!!! warning "Warning"
This feature currently in pre-production stage. We test it in our CI and on small internal installations.
## Implemetation details
## Implementation details
ZooKeeper is one of the first well-known open-source coordination systems. It's implemented in Java, has quite a simple and powerful data model. ZooKeeper's coordination algorithm called ZAB (ZooKeeper Atomic Broadcast) doesn't provide linearizability guarantees for reads, because each ZooKeeper node serves reads locally. Unlike ZooKeeper `clickhouse-keeper` written in C++ and use [RAFT algorithm](https://raft.github.io/) [implementation](https://github.com/eBay/NuRaft). This algorithm allows to have linearizability for reads and writes, has several open-source implementations in different languages.
@ -30,21 +30,25 @@ Other common parameters are inherited from clickhouse-server config (`listen_hos
Internal coordination settings are located in `<keeper_server>.<coordination_settings>` section:
- `operation_timeout_ms` — timeout for a single client operation
- `session_timeout_ms` — timeout for client session
- `dead_session_check_period_ms` — how often clickhouse-keeper check dead sessions and remove them
- `heart_beat_interval_ms` — how often a clickhouse-keeper leader will send heartbeats to followers
- `election_timeout_lower_bound_ms` — if follower didn't receive heartbeats from the leader in this interval, then it can initiate leader election
- `election_timeout_upper_bound_ms` — if follower didn't receive heartbeats from the leader in this interval, then it must initiate leader election
- `rotate_log_storage_interval` — how many logs to store in a single file
- `reserved_log_items` — how many coordination logs to store before compaction
- `snapshot_distance` — how often clickhouse-keeper will create new snapshots (in the number of logs)
- `snapshots_to_keep` — how many snapshots to keep
- `stale_log_gap` — the threshold when leader consider follower as stale and send snapshot to it instead of logs
- `force_sync` — call `fsync` on each write to coordination log
- `raft_logs_level` — text logging level about coordination (trace, debug, and so on)
- `shutdown_timeout` — wait to finish internal connections and shutdown
- `startup_timeout` — if the server doesn't connect to other quorum participants in the specified timeout it will terminate
- `operation_timeout_ms` — timeout for a single client operation (default: 10000)
- `session_timeout_ms` — timeout for client session (default: 30000)
- `dead_session_check_period_ms` — how often clickhouse-keeper check dead sessions and remove them (default: 500)
- `heart_beat_interval_ms` — how often a clickhouse-keeper leader will send heartbeats to followers (default: 500)
- `election_timeout_lower_bound_ms` — if follower didn't receive heartbeats from the leader in this interval, then it can initiate leader election (default: 1000)
- `election_timeout_upper_bound_ms` — if follower didn't receive heartbeats from the leader in this interval, then it must initiate leader election (default: 2000)
- `rotate_log_storage_interval` — how many log records to store in a single file (default: 100000)
- `reserved_log_items` — how many coordination log records to store before compaction (default: 100000)
- `snapshot_distance` — how often clickhouse-keeper will create new snapshots (in the number of records in logs) (default: 100000)
- `snapshots_to_keep` — how many snapshots to keep (default: 3)
- `stale_log_gap` — the threshold when leader consider follower as stale and send snapshot to it instead of logs (default: 10000)
- `fresh_log_gap` - when node became fresh (default: 200)
- `max_requests_batch_size` - max size of batch in requests count before it will be sent to RAFT (default: 100)
- `force_sync` — call `fsync` on each write to coordination log (default: true)
- `quorum_reads` - execute read requests as writes through whole RAFT consesus with similar speed (default: false)
- `raft_logs_level` — text logging level about coordination (trace, debug, and so on) (default: system default)
- `auto_forwarding` - allow to forward write requests from followers to leader (default: true)
- `shutdown_timeout` — wait to finish internal connections and shutdown (ms) (default: 5000)
- `startup_timeout` — if the server doesn't connect to other quorum participants in the specified timeout it will terminate (ms) (default: 30000)
Quorum configuration is located in `<keeper_server>.<raft_configuration>` section and contain servers description. The only parameter for the whole quorum is `secure`, which enables encrypted connection for communication between quorum participants. The main parameters for each `<server>` are:

53
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@ -5,50 +5,67 @@ toc_title: Testing Hardware
# How to Test Your Hardware with ClickHouse {#how-to-test-your-hardware-with-clickhouse}
With this instruction you can run basic ClickHouse performance test on any server without installation of ClickHouse packages.
You can run basic ClickHouse performance test on any server without installation of ClickHouse packages.
1. Go to “commits” page: https://github.com/ClickHouse/ClickHouse/commits/master
2. Click on the first green check mark or red cross with green “ClickHouse Build Check” and click on the “Details” link near “ClickHouse Build Check”. There is no such link in some commits, for example commits with documentation. In this case, choose the nearest commit having this link.
3. Copy the link to `clickhouse` binary for amd64 or aarch64.
4. ssh to the server and download it with wget:
## Automated Run
You can run benchmark with a single script.
1. Download the script.
```
wget https://raw.githubusercontent.com/ClickHouse/ClickHouse/master/benchmark/hardware.sh
```
2. Run the script.
```
chmod a+x ./hardware.sh
./hardware.sh
```
3. Copy the output and send it to clickhouse-feedback@yandex-team.com
All the results are published here: https://clickhouse.tech/benchmark/hardware/
## Manual Run
Alternatively you can perform benchmark in the following steps.
1. ssh to the server and download the binary with wget:
```bash
# These links are outdated, please obtain the fresh link from the "commits" page.
# For amd64:
wget https://clickhouse-builds.s3.yandex.net/0/e29c4c3cc47ab2a6c4516486c1b77d57e7d42643/clickhouse_build_check/gcc-10_relwithdebuginfo_none_bundled_unsplitted_disable_False_binary/clickhouse
wget https://builds.clickhouse.tech/master/amd64/clickhouse
# For aarch64:
wget https://clickhouse-builds.s3.yandex.net/0/e29c4c3cc47ab2a6c4516486c1b77d57e7d42643/clickhouse_special_build_check/clang-10-aarch64_relwithdebuginfo_none_bundled_unsplitted_disable_False_binary/clickhouse
wget https://builds.clickhouse.tech/master/aarch64/clickhouse
# Then do:
chmod a+x clickhouse
```
5. Download benchmark files:
2. Download benchmark files:
```bash
wget https://raw.githubusercontent.com/ClickHouse/ClickHouse/master/benchmark/clickhouse/benchmark-new.sh
chmod a+x benchmark-new.sh
wget https://raw.githubusercontent.com/ClickHouse/ClickHouse/master/benchmark/clickhouse/queries.sql
```
6. Download test data according to the [Yandex.Metrica dataset](../getting-started/example-datasets/metrica.md) instruction (“hits” table containing 100 million rows).
3. Download test data according to the [Yandex.Metrica dataset](../getting-started/example-datasets/metrica.md) instruction (“hits” table containing 100 million rows).
```bash
wget https://datasets.clickhouse.tech/hits/partitions/hits_100m_obfuscated_v1.tar.xz
tar xvf hits_100m_obfuscated_v1.tar.xz -C .
mv hits_100m_obfuscated_v1/* .
```
7. Run the server:
4. Run the server:
```bash
./clickhouse server
```
8. Check the data: ssh to the server in another terminal
5. Check the data: ssh to the server in another terminal
```bash
./clickhouse client --query "SELECT count() FROM hits_100m_obfuscated"
100000000
```
9. Edit the benchmark-new.sh, change `clickhouse-client` to `./clickhouse client` and add `--max_memory_usage 100000000000` parameter.
```bash
mcedit benchmark-new.sh
```
10. Run the benchmark:
6. Run the benchmark:
```bash
./benchmark-new.sh hits_100m_obfuscated
```
11. Send the numbers and the info about your hardware configuration to clickhouse-feedback@yandex-team.com
7. Send the numbers and the info about your hardware configuration to clickhouse-feedback@yandex-team.com
All the results are published here: https://clickhouse.tech/benchmark/hardware/

39
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@ -34,6 +34,7 @@ Configuration template:
<min_part_size>...</min_part_size>
<min_part_size_ratio>...</min_part_size_ratio>
<method>...</method>
<level>...</level>
</case>
...
</compression>
@ -43,7 +44,8 @@ Configuration template:
- `min_part_size` – The minimum size of a data part.
- `min_part_size_ratio` – The ratio of the data part size to the table size.
- `method` – Compression method. Acceptable values: `lz4` or `zstd`.
- `method` – Compression method. Acceptable values: `lz4`, `lz4hc`, `zstd`.
- `level` – Compression level. See [Codecs](../../sql-reference/statements/create/table/#create-query-general-purpose-codecs).
You can configure multiple `<case>` sections.
@ -62,10 +64,33 @@ If no conditions met for a data part, ClickHouse uses the `lz4` compression.
<min_part_size>10000000000</min_part_size>
<min_part_size_ratio>0.01</min_part_size_ratio>
<method>zstd</method>
<level>1</level>
</case>
</compression>
```
## encryption {#server-settings-encryption}
Configures a command to obtain a key to be used by [encryption codecs](../../sql-reference/statements/create/table.md#create-query-encryption-codecs). The command, or a shell script, is expected to write a Base64-encoded key of any length to the stdout.
**Example**
For Linux with systemd:
```xml
<encryption>
<key_command>/usr/bin/systemd-ask-password --id="clickhouse-server" --timeout=0 "Enter the ClickHouse encryption passphrase:" | base64</key_command>
</encryption>
```
For other systems:
```xml
<encryption>
<key_command><![CDATA[IFS=; echo -n >/dev/tty "Enter the ClickHouse encryption passphrase: "; stty=`stty -F /dev/tty -g`; stty -F /dev/tty -echo; read k </dev/tty; stty -F /dev/tty "$stty"; echo -n $k | base64]]></key_command>
</encryption>
```
## custom_settings_prefixes {#custom_settings_prefixes}
List of prefixes for [custom settings](../../operations/settings/index.md#custom_settings). The prefixes must be separated with commas.
@ -98,7 +123,7 @@ Default value: `1073741824` (1 GB).
```xml
<core_dump>
<size_limit>1073741824</size_limit>
</core_dump>
</core_dump>
```
## database_atomic_delay_before_drop_table_sec {#database_atomic_delay_before_drop_table_sec}
@ -439,8 +464,8 @@ The server will need access to the public Internet via IPv4 (at the time of writ
Keys:
- `enabled` – Boolean flag to enable the feature, `false` by default. Set to `true` to allow sending crash reports.
- `endpoint` – You can override the Sentry endpoint URL for sending crash reports. It can be either a separate Sentry account or your self-hosted Sentry instance. Use the [Sentry DSN](https://docs.sentry.io/error-reporting/quickstart/?platform=native#configure-the-sdk) syntax.
- `enabled` – Boolean flag to enable the feature, `false` by default. Set to `true` to allow sending crash reports.
- `endpoint` – You can override the Sentry endpoint URL for sending crash reports. It can be either a separate Sentry account or your self-hosted Sentry instance. Use the [Sentry DSN](https://docs.sentry.io/error-reporting/quickstart/?platform=native#configure-the-sdk) syntax.
- `anonymize` - Avoid attaching the server hostname to the crash report.
- `http_proxy` - Configure HTTP proxy for sending crash reports.
- `debug` - Sets the Sentry client into debug mode.
@ -502,7 +527,7 @@ The default `max_server_memory_usage` value is calculated as `memory_amount * ma
## max_server_memory_usage_to_ram_ratio {#max_server_memory_usage_to_ram_ratio}
Defines the fraction of total physical RAM amount, available to the ClickHouse server. If the server tries to utilize more, the memory is cut down to the appropriate amount.
Defines the fraction of total physical RAM amount, available to the ClickHouse server. If the server tries to utilize more, the memory is cut down to the appropriate amount.
Possible values:
@ -713,7 +738,7 @@ Keys for server/client settings:
- extendedVerification – Automatically extended verification of certificates after the session ends. Acceptable values: `true`, `false`.
- requireTLSv1 – Require a TLSv1 connection. Acceptable values: `true`, `false`.
- requireTLSv1_1 – Require a TLSv1.1 connection. Acceptable values: `true`, `false`.
- requireTLSv1 – Require a TLSv1.2 connection. Acceptable values: `true`, `false`.
- requireTLSv1_2 – Require a TLSv1.2 connection. Acceptable values: `true`, `false`.
- fips – Activates OpenSSL FIPS mode. Supported if the library’s OpenSSL version supports FIPS.
- privateKeyPassphraseHandler – Class (PrivateKeyPassphraseHandler subclass) that requests the passphrase for accessing the private key. For example: `<privateKeyPassphraseHandler>`, `<name>KeyFileHandler</name>`, `<options><password>test</password></options>`, `</privateKeyPassphraseHandler>`.
- invalidCertificateHandler – Class (a subclass of CertificateHandler) for verifying invalid certificates. For example: `<invalidCertificateHandler> <name>ConsoleCertificateHandler</name> </invalidCertificateHandler>` .
@ -880,7 +905,7 @@ Parameters:
- `flush_interval_milliseconds` — Interval for flushing data from the buffer in memory to the table.
**Example**
```xml
```xml
<yandex>
<text_log>
<level>notice</level>

4
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@ -31,7 +31,7 @@ Settings that can only be made in the server config file are not covered in this
## Custom Settings {#custom_settings}
In addition to the common [settings](../../operations/settings/settings.md), users can define custom settings.
In addition to the common [settings](../../operations/settings/settings.md), users can define custom settings.
A custom setting name must begin with one of predefined prefixes. The list of these prefixes must be declared in the [custom_settings_prefixes](../../operations/server-configuration-parameters/settings.md#custom_settings_prefixes) parameter in the server configuration file.
@ -48,7 +48,7 @@ SET custom_a = 123;
To get the current value of a custom setting use `getSetting()` function:
```sql
SELECT getSetting('custom_a');
SELECT getSetting('custom_a');
```
**See Also**

13
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@ -278,4 +278,15 @@ Possible values:
Default value: `0`.
[Original article](https://clickhouse.tech/docs/en/operations/settings/merge_tree_settings/) <!--hide-->
## check_sample_column_is_correct {#check_sample_column_is_correct}
Enables the check at table creation, that the data type of a column for sampling or sampling expression is correct. The data type must be one of unsigned [integer types](../../sql-reference/data-types/int-uint.md): `UInt8`, `UInt16`, `UInt32`, `UInt64`.
Possible values:
- true — The check is enabled.
- false — The check is disabled at table creation.
Default value: `true`.
By default, the ClickHouse server checks at table creation the data type of a column for sampling or sampling expression. If you already have tables with incorrect sampling expression and do not want the server to raise an exception during startup, set `check_sample_column_is_correct` to `false`.

20
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@ -65,20 +65,20 @@ What to do when the volume of data read exceeds one of the limits: ‘throw’ o
The following restrictions can be checked on each block (instead of on each row). That is, the restrictions can be broken a little.
A maximum number of rows that can be read from a local table on a leaf node when running a distributed query. While
distributed queries can issue a multiple sub-queries to each shard (leaf) - this limit will be checked only on the read
stage on the leaf nodes and ignored on results merging stage on the root node. For example, cluster consists of 2 shards
and each shard contains a table with 100 rows. Then distributed query which suppose to read all the data from both
tables with setting `max_rows_to_read=150` will fail as in total it will be 200 rows. While query
distributed queries can issue a multiple sub-queries to each shard (leaf) - this limit will be checked only on the read
stage on the leaf nodes and ignored on results merging stage on the root node. For example, cluster consists of 2 shards
and each shard contains a table with 100 rows. Then distributed query which suppose to read all the data from both
tables with setting `max_rows_to_read=150` will fail as in total it will be 200 rows. While query
with `max_rows_to_read_leaf=150` will succeed since leaf nodes will read 100 rows at max.
## max_bytes_to_read_leaf {#max-bytes-to-read-leaf}
A maximum number of bytes (uncompressed data) that can be read from a local table on a leaf node when running
a distributed query. While distributed queries can issue a multiple sub-queries to each shard (leaf) - this limit will
be checked only on the read stage on the leaf nodes and ignored on results merging stage on the root node.
For example, cluster consists of 2 shards and each shard contains a table with 100 bytes of data.
Then distributed query which suppose to read all the data from both tables with setting `max_bytes_to_read=150` will fail
as in total it will be 200 bytes. While query with `max_bytes_to_read_leaf=150` will succeed since leaf nodes will read
A maximum number of bytes (uncompressed data) that can be read from a local table on a leaf node when running
a distributed query. While distributed queries can issue a multiple sub-queries to each shard (leaf) - this limit will
be checked only on the read stage on the leaf nodes and ignored on results merging stage on the root node.
For example, cluster consists of 2 shards and each shard contains a table with 100 bytes of data.
Then distributed query which suppose to read all the data from both tables with setting `max_bytes_to_read=150` will fail
as in total it will be 200 bytes. While query with `max_bytes_to_read_leaf=150` will succeed since leaf nodes will read
100 bytes at max.
## read_overflow_mode_leaf {#read-overflow-mode-leaf}

2
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@ -28,7 +28,7 @@ Structure of the `users` section:
<profile>profile_name</profile>
<quota>default</quota>
<default_database>default<default_database>
<databases>
<database_name>
<table_name>

141
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@ -20,6 +20,29 @@ Possible values:
- `global` — Replaces the `IN`/`JOIN` query with `GLOBAL IN`/`GLOBAL JOIN.`
- `allow` — Allows the use of these types of subqueries.
## prefer_global_in_and_join {#prefer-global-in-and-join}
Enables the replacement of `IN`/`JOIN` operators with `GLOBAL IN`/`GLOBAL JOIN`.
Possible values:
- 0 — Disabled. `IN`/`JOIN` operators are not replaced with `GLOBAL IN`/`GLOBAL JOIN`.
- 1 — Enabled. `IN`/`JOIN` operators are replaced with `GLOBAL IN`/`GLOBAL JOIN`.
Default value: `0`.
**Usage**
Although `SET distributed_product_mode=global` can change the queries behavior for the distributed tables, it's not suitable for local tables or tables from external resources. Here is when the `prefer_global_in_and_join` setting comes into play.
For example, we have query serving nodes that contain local tables, which are not suitable for distribution. We need to scatter their data on the fly during distributed processing with the `GLOBAL` keyword — `GLOBAL IN`/`GLOBAL JOIN`.
Another use case of `prefer_global_in_and_join` is accessing tables created by external engines. This setting helps to reduce the number of calls to external sources while joining such tables: only one call per query.
**See also:**
- [Distributed subqueries](../../sql-reference/operators/in.md#select-distributed-subqueries) for more information on how to use `GLOBAL IN`/`GLOBAL JOIN`
## enable_optimize_predicate_expression {#enable-optimize-predicate-expression}
Turns on predicate pushdown in `SELECT` queries.
@ -153,6 +176,26 @@ Possible values:
Default value: 1048576.
## table_function_remote_max_addresses {#table_function_remote_max_addresses}
Sets the maximum number of addresses generated from patterns for the [remote](../../sql-reference/table-functions/remote.md) function.
Possible values:
- Positive integer.
Default value: `1000`.
## glob_expansion_max_elements {#glob_expansion_max_elements }
Sets the maximum number of addresses generated from patterns for external storages and table functions (like [url](../../sql-reference/table-functions/url.md)) except the `remote` function.
Possible values:
- Positive integer.
Default value: `1000`.
## send_progress_in_http_headers {#settings-send_progress_in_http_headers}
Enables or disables `X-ClickHouse-Progress` HTTP response headers in `clickhouse-server` responses.
@ -509,6 +552,23 @@ Possible values:
Default value: `ALL`.
## join_algorithm {#settings-join_algorithm}
Specifies [JOIN](../../sql-reference/statements/select/join.md) algorithm.
Possible values:
- `hash` — [Hash join algorithm](https://en.wikipedia.org/wiki/Hash_join) is used.
- `partial_merge` — [Sort-merge algorithm](https://en.wikipedia.org/wiki/Sort-merge_join) is used.
- `prefer_partial_merge` — ClickHouse always tries to use `merge` join if possible.
- `auto` — ClickHouse tries to change `hash` join to `merge` join on the fly to avoid out of memory.
Default value: `hash`.
When using `hash` algorithm the right part of `JOIN` is uploaded into RAM.
When using `partial_merge` algorithm ClickHouse sorts the data and dumps it to the disk. The `merge` algorithm in ClickHouse differs a bit from the classic realization. First ClickHouse sorts the right table by [join key](../../sql-reference/statements/select/join.md#select-join) in blocks and creates min-max index for sorted blocks. Then it sorts parts of left table by `join key` and joins them over right table. The min-max index is also used to skip unneeded right table blocks.
## join_any_take_last_row {#settings-join_any_take_last_row}
Changes behaviour of join operations with `ANY` strictness.
@ -1234,7 +1294,7 @@ Default value: `3`.
## output_format_json_quote_64bit_integers {#session_settings-output_format_json_quote_64bit_integers}
Controls quoting of 64-bit or bigger [integers](../../sql-reference/data-types/int-uint.md) (like `UInt64` or `Int128`) when they are output in a [JSON](../../interfaces/formats.md#json) format.
Such integers are enclosed in quotes by default. This behavior is compatible with most JavaScript implementations.
Such integers are enclosed in quotes by default. This behavior is compatible with most JavaScript implementations.
Possible values:
@ -1758,7 +1818,7 @@ Default value: 0.
## optimize_functions_to_subcolumns {#optimize-functions-to-subcolumns}
Enables or disables optimization by transforming some functions to reading subcolumns. This reduces the amount of data to read.
Enables or disables optimization by transforming some functions to reading subcolumns. This reduces the amount of data to read.
These functions can be transformed:
@ -1989,6 +2049,13 @@ Possible values: 32 (32 bytes) - 1073741824 (1 GiB)
Default value: 32768 (32 KiB)
## output_format_avro_string_column_pattern {#output_format_avro_string_column_pattern}
Regexp of column names of type String to output as Avro `string` (default is `bytes`).
RE2 syntax is supported.
Type: string
## format_avro_schema_registry_url {#format_avro_schema_registry_url}
Sets [Confluent Schema Registry](https://docs.confluent.io/current/schema-registry/index.html) URL to use with [AvroConfluent](../../interfaces/formats.md#data-format-avro-confluent) format.
@ -2018,6 +2085,16 @@ Possible values:
Default value: 16.
## merge_selecting_sleep_ms {#merge_selecting_sleep_ms}
Sleep time for merge selecting when no part is selected. A lower setting triggers selecting tasks in `background_schedule_pool` frequently, which results in a large number of requests to Zookeeper in large-scale clusters.
Possible values:
- Any positive integer.
Default value: `5000`.
## parallel_distributed_insert_select {#parallel_distributed_insert_select}
Enables parallel distributed `INSERT ... SELECT` query.
@ -2893,7 +2970,7 @@ Result:
└─────────────┘
```
Note that this setting influences [Materialized view](../../sql-reference/statements/create/view.md#materialized) and [MaterializeMySQL](../../engines/database-engines/materialize-mysql.md) behaviour.
Note that this setting influences [Materialized view](../../sql-reference/statements/create/view.md#materialized) and [MaterializedMySQL](../../engines/database-engines/materialized-mysql.md) behaviour.
## engine_file_empty_if_not_exists {#engine-file-empty_if-not-exists}
@ -3151,6 +3228,53 @@ SELECT
FROM fuse_tbl
```
## allow_experimental_database_replicated {#allow_experimental_database_replicated}
Enables to create databases with [Replicated](../../engines/database-engines/replicated.md) engine.
Possible values:
- 0 — Disabled.
- 1 — Enabled.
Default value: `0`.
## database_replicated_initial_query_timeout_sec {#database_replicated_initial_query_timeout_sec}
Sets how long initial DDL query should wait for Replicated database to precess previous DDL queue entries in seconds.
Possible values:
- Positive integer.
- 0 — Unlimited.
Default value: `300`.
## distributed_ddl_task_timeout {#distributed_ddl_task_timeout}
Sets timeout for DDL query responses from all hosts in cluster. If a DDL request has not been performed on all hosts, a response will contain a timeout error and a request will be executed in an async mode. Negative value means infinite.
Possible values:
- Positive integer.
- 0 — Async mode.
- Negative integer — infinite timeout.
Default value: `180`.
## distributed_ddl_output_mode {#distributed_ddl_output_mode}
Sets format of distributed DDL query result.
Possible values:
- `throw` — Returns result set with query execution status for all hosts where query is finished. If query has failed on some hosts, then it will rethrow the first exception. If query is not finished yet on some hosts and [distributed_ddl_task_timeout](#distributed_ddl_task_timeout) exceeded, then it throws `TIMEOUT_EXCEEDED` exception.
- `none` — Is similar to throw, but distributed DDL query returns no result set.
- `null_status_on_timeout` — Returns `NULL` as execution status in some rows of result set instead of throwing `TIMEOUT_EXCEEDED` if query is not finished on the corresponding hosts.
- `never_throw` — Do not throw `TIMEOUT_EXCEEDED` and do not rethrow exceptions if query has failed on some hosts.
Default value: `throw`.
## flatten_nested {#flatten-nested}
Sets the data format of a [nested](../../sql-reference/data-types/nested-data-structures/nested.md) columns.
@ -3230,3 +3354,14 @@ Default value: `1`.
**Usage**
If the setting is set to `0`, the table function does not make Nullable columns and inserts default values instead of NULL. This is also applicable for NULL values inside arrays.
## output_format_arrow_low_cardinality_as_dictionary {#output-format-arrow-low-cardinality-as-dictionary}
Allows to convert the [LowCardinality](../../sql-reference/data-types/lowcardinality.md) type to the `DICTIONARY` type of the [Arrow](../../interfaces/formats.md#data-format-arrow) format for `SELECT` queries.
Possible values:
- 0 — The `LowCardinality` type is not converted to the `DICTIONARY` type.
- 1 — The `LowCardinality` type is converted to the `DICTIONARY` type.
Default value: `0`.

2
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@ -33,7 +33,7 @@ SELECT * FROM system.asynchronous_metric_log LIMIT 10
**See Also**
- [system.asynchronous_metrics](../system-tables/asynchronous_metrics.md) — Contains metrics, calculated periodically in the background.
- [system.asynchronous_metrics](../system-tables/asynchronous_metrics.md) — Contains metrics, calculated periodically in the background.
- [system.metric_log](../system-tables/metric_log.md) — Contains history of metrics values from tables `system.metrics` and `system.events`, periodically flushed to disk.
[Original article](https://clickhouse.tech/docs/en/operations/system-tables/asynchronous_metric_log) <!--hide-->

18
docs/en/operations/system-tables/columns.md
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@ -4,7 +4,7 @@ Contains information about columns in all the tables.
You can use this table to get information similar to the [DESCRIBE TABLE](../../sql-reference/statements/misc.md#misc-describe-table) query, but for multiple tables at once.
Columns from [temporary tables](../../sql-reference/statements/create/table.md#temporary-tables) are visible in the `system.columns` only in those session where they have been created. They are shown with the empty `database` field.
Columns from [temporary tables](../../sql-reference/statements/create/table.md#temporary-tables) are visible in the `system.columns` only in those session where they have been created. They are shown with the empty `database` field.
Columns:
@ -38,17 +38,17 @@ database: system
table: aggregate_function_combinators
name: name
type: String
default_kind:
default_expression:
default_kind:
default_expression:
data_compressed_bytes: 0
data_uncompressed_bytes: 0
marks_bytes: 0
comment:
comment:
is_in_partition_key: 0
is_in_sorting_key: 0
is_in_primary_key: 0
is_in_sampling_key: 0
compression_codec:
compression_codec:
Row 2:
──────
@ -56,17 +56,17 @@ database: system
table: aggregate_function_combinators
name: is_internal
type: UInt8
default_kind:
default_expression:
default_kind:
default_expression:
data_compressed_bytes: 0
data_uncompressed_bytes: 0
marks_bytes: 0
comment:
comment:
is_in_partition_key: 0
is_in_sorting_key: 0
is_in_primary_key: 0
is_in_sampling_key: 0
compression_codec:
compression_codec:
```
The `system.columns` table contains the following columns (the column type is shown in brackets):

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