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126 Commits

Author SHA1 Message Date
Azat Khuzhin
8164c49f04 Fix limit/offset settings for distributed queries (ignore on the remote nodes) 2021-06-03 21:14:24 +03:00
Nikolai Kochetov
afc1fe7f3d Make ContextPtr const by default. 2021-05-31 17:49:02 +03:00
Nikolai Kochetov
9f28d0966a Fix typos. 2021-05-19 15:43:10 +03:00
Nikolai Kochetov
c07043fd97 Try fix more cases. 2021-05-19 15:16:18 +03:00
Nikolai Kochetov
9d152a3c4d
Update src/Interpreters/ClusterProxy/SelectStreamFactory.cpp 
Co-authored-by: Azat Khuzhin <a3at.mail@gmail.com>
 2021-05-19 13:40:46 +03:00
Nikolai Kochetov
85c0844439
Update SelectStreamFactory.cpp 
Fix typo
 2021-05-18 19:19:16 +03:00
Nikolai Kochetov
57f5e33464 Try to fix GROUP BY _shard_num 2021-05-18 18:17:19 +03:00
Azat Khuzhin
79bd8d4d3f Respect optimize_skip_unused_shards_rewrite_in with optimize_skip_unused_shards_limit 2021-04-12 10:37:28 +03:00
Azat Khuzhin
fbb386dca5 Rewrite IN in query for remote shards to exclude values that does not belongs to shard 
v2: fix optimize_skip_unused_shards_rewrite_in for sharding_key wrapped into function
v3: fix column name for optimize_skip_unused_shards_rewrite_in
v4: fix optimize_skip_unused_shards_rewrite_in with Null
v5:
- squash with Remove query argument for IStreamFactory::createForShard()
- use proper column after function execution (using sharding_key_column_name)
- update the test reference since (X) now is tuple(X)
 2021-04-12 10:37:28 +03:00
Ivan
495c6e03aa
Replace all Context references with std::weak_ptr (#22297) 
* Replace all Context references with std::weak_ptr

* Fix shared context captured by value

* Fix build

* Fix Context with named sessions

* Fix copy context

* Fix gcc build

* Merge with master and fix build

* Fix gcc-9 build
 2021-04-11 02:33:54 +03:00
Alexander Kuzmenkov
0264124146
Merge pull request #21942 from ucasFL/distributed_depth 
Add settings max_distributed_depth
 2021-04-09 15:52:58 +03:00
feng lv
f6e4e13f89 fix conflict 2021-04-05 14:08:30 +00:00
feng lv
56073db22d max distributed depth 
Add settings max_distributed_depth

fix style

fix

fix

fix

fix test

fix

fix
 2021-04-05 14:00:54 +00:00
Nikolai Kochetov
0e2f52518f Extract converting from UnionStep. 2021-03-25 12:57:14 +03:00
Nikolai Kochetov
9a39459888 Refactor ActionsDAG 2021-03-04 20:38:12 +03:00
Nikolai Kochetov
15921fbfcb Remove index by name from ActionsDAG 2021-03-03 23:01:07 +03:00
Nikolai Kochetov
d328bfa41f Review fixes. Add setting max_optimizations_to_apply. 2021-02-26 19:29:56 +03:00
Nikolai Kochetov
c7ef57c6fd Add setting async_socket_for_remote 2020-12-18 16:15:03 +03:00
Azat Khuzhin
77a1d00dee Add new remote context as interpreter context to the Pipe 2020-12-12 17:43:10 +03:00
Azat Khuzhin
5b3ab48861 More forward declaration for generic headers 
The following headers are pretty generic, so use forward declaration as
much as possible:
- Context.h
- Settings.h
- ConnectionTimeouts.h
(Also this shows that some missing some includes -- this has been fixed)

And split ConnectionTimeouts.h into ConnectionTimeoutsContext.h (since
module part cannot be added for it, due to recursive build dependencies
that will be introduced)

Also remove Settings from the RemoteBlockInputStream/RemoteQueryExecutor
and just pass the context, since settings was passed only in speicifc
places, that can allow making a copy of Context (i.e. Copier).

Approx results (How much units will be recompiled after changing file X?):

- ConnectionTimeouts.h
  - mainline: 100

- Context.h:
  - mainline: ~800
  - patched:  415

- Settings.h:
  - mainline: 900-1K
  - patched:  440 (most of them because of the Context.h)
 2020-12-12 17:43:10 +03:00
alexey-milovidov
fb3a69b298
Merge pull request #17254 from azat/fix-dist-query-cancelation 
Fix "Unexpected packet Data received from client"  for Distributed queries
 2020-11-26 03:46:27 +03:00
Nikolai Kochetov
81386689d9
Update executeQuery.cpp 2020-11-25 12:59:21 +03:00
Azat Khuzhin
97c34a0fc9 Pass logger for the RemoteQueryExecutor 
So now you will get additional message:

    2020.11.21 13:37:15.429767 [ 380840 ] {47e1540d-f4cd-4f2f-9383-f1216e8328dc} <Trace> StorageDistributed (dist_01247): (127.0.0.2:9000) Cancelling query
 2020-11-21 13:37:32 +03:00
Nikolai Kochetov
13eceff55c Remove Converting transform and step. 2020-11-17 20:16:55 +03:00
tavplubix
058aa8f85e
Merge pull request #16824 from ClickHouse/replace_stringstreams_with_buffers 
Replace std::*stringstreams with DB::*Buffers
 2020-11-12 01:11:44 +03:00
Nikolai Kochetov
195c941c4e Merge branch 'master' into storage-read-query-plan 2020-11-10 15:02:22 +03:00
Alexander Tokmakov
62ff00ee8b use WriteBuffer in formatAST(...) 2020-11-09 19:05:40 +03:00
alexey-milovidov
f4ba5f1f9a
Merge pull request #16772 from ClickHouse/fix-stringstream 
Fix "server failed to start" error
 2020-11-08 14:27:08 +03:00
Alexey Milovidov
1ea3afadbc Merge with master 2020-11-08 00:28:39 +03:00
Alexey Milovidov
5314185e25 Merge branch 'master' into azat-optimize_skip_unused_shards-optimization 2020-11-08 00:17:59 +03:00
Alexey Milovidov
fd84d16387 Fix "server failed to start" error 2020-11-07 03:14:53 +03:00
Nikolai Kochetov
7fa045cff8 Merge branch 'master' into storage-read-query-plan 2020-10-22 13:31:10 +03:00
Alexander Tokmakov
72b1339656 Revert "Revert "Write structure of table functions to metadata"" 
This reverts commit c65d1e5c70.
 2020-10-14 15:19:29 +03:00
tavplubix
c65d1e5c70
Revert "Write structure of table functions to metadata" 2020-10-14 13:59:29 +03:00
alexey-milovidov
f60ccb4edf
Merge pull request #14295 from ClickHouse/write_structure_of_table_functions 
Write structure of table functions to metadata
 2020-10-13 23:56:09 +03:00
Alexey Milovidov
5b482f4191 Cleanups 2020-10-10 19:31:10 +03:00
Nikolai Kochetov
f9bf1e3406 Merge branch 'master' into storage-read-query-plan 2020-10-06 09:50:10 +03:00
Azat Khuzhin
f25c1742b8 Pass through *_for_user settings via Distributed with cluster-secure 
In cluster-secure case the user on shards (remote) is equal to the user
on the initiator, so those settings can be safely applied.
 2020-10-03 02:04:47 +03:00
Azat Khuzhin
587cde853e Avoid skipping unused shards twice (for query processing stage and read itself) 2020-10-02 22:42:09 +03:00
Nikolai Kochetov
576ffadb17 Fix explain for ISourceStep. 2020-09-30 15:22:30 +03:00
Nikolai Kochetov
b26f11c00c Support StorageDistributed::read for QueryPlan. 2020-09-18 17:16:53 +03:00
Alexander Tokmakov
b1d6ac0d14 Merge branch 'master' into write_structure_of_table_functions 2020-09-02 20:04:50 +03:00
Alexander Tokmakov
3a9779adb4 slightly better code 2020-09-01 17:41:49 +03:00
Azat Khuzhin
d04cda0367 Fix QueryPlan lifetime (for EXPLAIN PIPELINE graph=1) for queries with nested interpreter 
Example of such queries are distributed queries, which creates local
InterpreterSelectQuery, which will have it's own QueryPlan but returns
Pipes that has that IQueryPlanStep attached.

After EXPLAIN PIPELINE graph=1 tries to use them, and will get SIGSEGV.

- TSAN:

<details>

```
==2782113==ERROR: AddressSanitizer: heap-use-after-free on address 0x6120000223c0 at pc 0x00002b8f3f3e bp 0x7fff18cfbff0 sp 0x7fff18cfbfe8
READ of size 8 at 0x6120000223c0 thread T22 (TCPHandler)
    #0 0x2b8f3f3d in DB::printPipelineCompact(std::__1::vector<std::__1::shared_ptr<DB::IProcessor>, std::__1::allocator<std::__1::shared_ptr<DB::IProcessor> > > const&, DB::WriteBuffer&, bool) /build/obj-x86_64-linux-gnu/../src/Processors/printPipeline.cpp:116:53
    #1 0x29ee698c in DB::InterpreterExplainQuery::executeImpl() /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterExplainQuery.cpp:275:17
    #2 0x29ee2e40 in DB::InterpreterExplainQuery::execute() /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterExplainQuery.cpp:73:14
    #3 0x2a7b44a2 in DB::executeQueryImpl(char const*, char const*, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool, DB::ReadBuffer*) /build/obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:389:28
    #4 0x2a7b1cb3 in DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool) /build/obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:675:30
    #5 0x2b7993b2 in DB::TCPHandler::runImpl() /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:253:24
    #6 0x2b7b649a in DB::TCPHandler::run() /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1217:9
    #7 0x31d9c57e in Poco::Net::TCPServerConnection::start() /build/obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerConnection.cpp:43:3
    #8 0x31d9d281 in Poco::Net::TCPServerDispatcher::run() /build/obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerDispatcher.cpp:114:20
    #9 0x3206b5d5 in Poco::PooledThread::run() /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/ThreadPool.cpp:199:14
    #10 0x320657ad in Poco::ThreadImpl::runnableEntry(void*) /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread_POSIX.cpp:345:27
    #11 0x7ffff7f853e8 in start_thread (/usr/lib/libpthread.so.0+0x93e8)
    #12 0x7ffff7ea2292 in clone (/usr/lib/libc.so.6+0x100292)

0x6120000223c0 is located 0 bytes inside of 272-byte region [0x6120000223c0,0x6120000224d0)
freed by thread T22 (TCPHandler) here:
    #0 0x122f3b62 in operator delete(void*, unsigned long) (/src/ch/tmp/master-20200831/clickhouse+0x122f3b62)
    #1 0x2bd9e9fa in std::__1::default_delete<DB::IQueryPlanStep>::operator()(DB::IQueryPlanStep*) const /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:2363:5
    #2 0x2bd9e9fa in std::__1::unique_ptr<DB::IQueryPlanStep, std::__1::default_delete<DB::IQueryPlanStep> >::reset(DB::IQueryPlanStep*) /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:2618:7
    #3 0x2bd9e9fa in std::__1::unique_ptr<DB::IQueryPlanStep, std::__1::default_delete<DB::IQueryPlanStep> >::~unique_ptr() /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:2572:19
    #4 0x2bd9e9fa in DB::QueryPlan::Node::~Node() /build/obj-x86_64-linux-gnu/../src/Processors/QueryPlan/QueryPlan.h:66:12
    #5 0x2bd9e9fa in void std::__1::allocator_traits<std::__1::allocator<std::__1::__list_node<DB::QueryPlan::Node, void*> > >::__destroy<DB::QueryPlan::Node>(std::__1::integral_constant<bool, false>, std::__1::allocator<std::__1::__list_node<DB::QueryPlan::Node, void*> >&,
 DB::QueryPlan::Node*) /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:1798:23
    #6 0x2bd9e9fa in void std::__1::allocator_traits<std::__1::allocator<std::__1::__list_node<DB::QueryPlan::Node, void*> > >::destroy<DB::QueryPlan::Node>(std::__1::allocator<std::__1::__list_node<DB::QueryPlan::Node, void*> >&, DB::QueryPlan::Node*) /build/obj-x86_64-lin
ux-gnu/../contrib/libcxx/include/memory:1630:14
    #7 0x2bd9e9fa in std::__1::__list_imp<DB::QueryPlan::Node, std::__1::allocator<DB::QueryPlan::Node> >::clear() /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/list:762:13
    #8 0x29fece08 in DB::InterpreterSelectQuery::execute() /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterSelectQuery.cpp:492:1
    #9 0x2abf7484 in DB::ClusterProxy::(anonymous namespace)::createLocalStream(std::__1::shared_ptr<DB::IAST> const&, DB::Block const&, DB::Context const&, DB::QueryProcessingStage::Enum) /build/obj-x86_64-linux-gnu/../src/Interpreters/ClusterProxy/SelectStreamFactory.cpp:
78:33
    #10 0x2abea85d in DB::ClusterProxy::SelectStreamFactory::createForShard(DB::Cluster::ShardInfo const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&, DB::Context const&, std::__1::shar
ed_ptr<DB::Throttler> const&, DB::SelectQueryInfo const&, std::__1::vector<DB::Pipe, std::__1::allocator<DB::Pipe> >&)::$_0::operator()() const /build/obj-x86_64-linux-gnu/../src/Interpreters/ClusterProxy/SelectStreamFactory.cpp:133:51
    #11 0x2abea85d in DB::ClusterProxy::SelectStreamFactory::createForShard(DB::Cluster::ShardInfo const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&, DB::Context const&, std::__1::shar
ed_ptr<DB::Throttler> const&, DB::SelectQueryInfo const&, std::__1::vector<DB::Pipe, std::__1::allocator<DB::Pipe> >&) /build/obj-x86_64-linux-gnu/../src/Interpreters/ClusterProxy/SelectStreamFactory.cpp:189:13
    #12 0x2abe6d99 in DB::ClusterProxy::executeQuery(DB::ClusterProxy::IStreamFactory&, std::__1::shared_ptr<DB::Cluster> const&, Poco::Logger*, std::__1::shared_ptr<DB::IAST> const&, DB::Context const&, DB::Settings const&, DB::SelectQueryInfo const&) /build/obj-x86_64-lin
ux-gnu/../src/Interpreters/ClusterProxy/executeQuery.cpp:107:24
    #13 0x2abc4b74 in DB::StorageDistributed::read(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, s
td::__1::shared_ptr<DB::StorageInMemoryMetadata const> const&, DB::SelectQueryInfo const&, DB::Context const&, DB::QueryProcessingStage::Enum, unsigned long, unsigned int) /build/obj-x86_64-linux-gnu/../src/Storages/StorageDistributed.cpp:514:12
    #14 0x2bda1c5a in DB::ReadFromStorageStep::ReadFromStorageStep(std::__1::shared_ptr<DB::RWLockImpl::LockHolderImpl>, std::__1::shared_ptr<DB::StorageInMemoryMetadata const>&, DB::SelectQueryOptions, std::__1::shared_ptr<DB::IStorage>, std::__1::vector<std::__1::basic_st
ring<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, DB::SelectQueryInfo const&, std::__1::shared_ptr<DB::Context>, DB::QueryProcessingStage
::Enum, unsigned long, unsigned long) /build/obj-x86_64-linux-gnu/../src/Processors/QueryPlan/ReadFromStorageStep.cpp:39:26
    #15 0x2a01ca70 in std::__1::__unique_if<DB::ReadFromStorageStep>::__unique_single std::__1::make_unique<DB::ReadFromStorageStep, std::__1::shared_ptr<DB::RWLockImpl::LockHolderImpl>&, std::__1::shared_ptr<DB::StorageInMemoryMetadata const>&, DB::SelectQueryOptions&, std
::__1::shared_ptr<DB::IStorage>&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, DB::SelectQueryInfo&, st
d::__1::shared_ptr<DB::Context>&, DB::QueryProcessingStage::Enum&, unsigned long&, unsigned long&>(std::__1::shared_ptr<DB::RWLockImpl::LockHolderImpl>&, std::__1::shared_ptr<DB::StorageInMemoryMetadata const>&, DB::SelectQueryOptions&, std::__1::shared_ptr<DB::IStorage>&,
std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >&, DB::SelectQueryInfo&, std::__1::shared_ptr<DB::Context>&,
DB::QueryProcessingStage::Enum&, unsigned long&, unsigned long&) /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:3028:32
    #16 0x29ff556a in DB::InterpreterSelectQuery::executeFetchColumns(DB::QueryProcessingStage::Enum, DB::QueryPlan&, std::__1::shared_ptr<DB::PrewhereInfo> const&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::
__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterSelectQuery.cpp:1383:26
    #17 0x29fe6b83 in DB::InterpreterSelectQuery::executeImpl(DB::QueryPlan&, std::__1::shared_ptr<DB::IBlockInputStream> const&, std::__1::optional<DB::Pipe>) /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterSelectQuery.cpp:795:9
    #18 0x29fe5771 in DB::InterpreterSelectQuery::buildQueryPlan(DB::QueryPlan&) /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterSelectQuery.cpp:473:5
    #19 0x2a47d370 in DB::InterpreterSelectWithUnionQuery::buildQueryPlan(DB::QueryPlan&) /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterSelectWithUnionQuery.cpp:182:38
    #20 0x29ee5bff in DB::InterpreterExplainQuery::executeImpl() /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterExplainQuery.cpp:265:21
    #21 0x29ee2e40 in DB::InterpreterExplainQuery::execute() /build/obj-x86_64-linux-gnu/../src/Interpreters/InterpreterExplainQuery.cpp:73:14
    #22 0x2a7b44a2 in DB::executeQueryImpl(char const*, char const*, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool, DB::ReadBuffer*) /build/obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:389:28
    #23 0x2a7b1cb3 in DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool) /build/obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:675:30
    #24 0x2b7993b2 in DB::TCPHandler::runImpl() /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:253:24
    #25 0x2b7b649a in DB::TCPHandler::run() /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1217:9
    #26 0x31d9c57e in Poco::Net::TCPServerConnection::start() /build/obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerConnection.cpp:43:3
    #27 0x31d9d281 in Poco::Net::TCPServerDispatcher::run() /build/obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerDispatcher.cpp:114:20
    #28 0x3206b5d5 in Poco::PooledThread::run() /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/ThreadPool.cpp:199:14
    #29 0x320657ad in Poco::ThreadImpl::runnableEntry(void*) /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread_POSIX.cpp:345:27
    #30 0x7ffff7f853e8 in start_thread (/usr/lib/libpthread.so.0+0x93e8)
```

</details>
 2020-09-01 10:04:08 +03:00
Nikolai Kochetov
20e63d2271 Refactor Pipe [part 6] 2020-08-06 15:24:05 +03:00
Nikolai Kochetov
09fbce1b1e Merge branch 'master' into refactor-pipes-3 2020-08-04 11:32:34 +03:00
Nikolai Kochetov
42c5248611 Fix totals and extremes for delayed replica. 2020-08-03 20:41:56 +03:00
Nikolai Kochetov
2cca4d5fcf Refactor Pipe [part 2]. 2020-08-03 16:54:14 +03:00
Nikolai Kochetov
e411916bde Refactor Pipe [part 1]. 2020-08-03 14:33:11 +03:00
Nikolai Kochetov
133422d5e7 Ignore constants for remote query from local replica. 2020-07-29 17:14:13 +03:00
Alexey Milovidov
6e1c1b0dbb Whitespace 2020-07-05 03:35:57 +03:00
Azat Khuzhin
177d699cde Do not check *optimize_skip_unused_shards_nesting w/o *optimize_skip_unused_shards 
This will avoid supperior log message in case of
*optimize_skip_unused_shards_nesting already disables it.
And also it is logical.
 2020-06-29 23:00:14 +03:00
alexey-milovidov
38b018fa04
Update executeQuery.cpp 2020-06-21 21:29:11 +03:00
Azat Khuzhin
fb30629ff2 Add settings to control nesting level for shards skipping optimization 
- optimize_skip_unused_shards_nesting (allows control nesting level for
  shards skipping optimization)
- force_skip_optimize_shards_nesting (allows control nesting level for
  checking was shards skipped or not)
- deprecates force_skip_optimize_shards_no_nested
 2020-06-21 15:27:01 +03:00
Azat Khuzhin
d34e6217bc Add logging of adjusting conditional settings for distributed queries 2020-06-18 21:49:29 +03:00
Azat Khuzhin
6507247328 optimize_skip_unused_shards=2 will disable it for nested distributed queries 
P.S. Looks like settings can be converted between SettingUInt64 and
SettingBool without breaking binary protocol.

FWIW maybe it is a good idea to change the semantics of the settings as
follow (but I guess that changing semantic is not a good idea, better to
add new settings and deprecate old ones):
- optimize_skip_unused_shards -- accept nesting level on which the
  optimization will work
- force_skip_optimize_shards_nesting -- accept nesting level on which
  the optimization will work
 2020-06-18 21:49:29 +03:00
Nikolai Kochetov
f54f948162 Added DelayedSource. 2020-06-04 15:17:35 +03:00
Alexey Milovidov
25f941020b Remove namespace pollution 2020-05-31 00:57:37 +03:00
alexey-milovidov
3eea042d16
Merge pull request #11243 from ClickHouse/remove-experimental-use-processors-flag-4 
Remove some code.
 2020-05-30 21:05:14 +03:00
Alexander Tokmakov
c071e0a473 add context to DatabaseCatalog methods 2020-05-29 02:01:18 +03:00
Nikolai Kochetov
030aa6eac4 Fix build. 2020-05-28 16:57:01 +03:00
Nikolai Kochetov
2a9bcfbcd1 Fix build. 2020-05-28 14:00:12 +03:00
Nikolai Kochetov
da0052858d Fix build. 2020-05-28 13:57:04 +03:00
Alexey Milovidov
7e1813825b Return old names of macros 2020-05-24 01:24:01 +03:00
Alexey Milovidov
7e2fb9ad65 Apply all transformations again 2020-05-23 22:38:30 +03:00
Alexey Milovidov
29762240de Remove duplicate whitespaces (preparation) 2020-05-23 22:31:54 +03:00
Alexey Milovidov
7fed65cbe2 Remove duplicate whitespaces (preparation) 2020-05-23 22:14:58 +03:00
Alexey Milovidov
ab0562a574 Make all LOG in single line (preparation) 2020-05-23 22:05:41 +03:00
Azat Khuzhin
d93b9a57f6 Forward declaration for Context as much as possible. 
Now after changing Context.h 488 modules will be recompiled instead of 582.
 2020-05-21 01:53:18 +03:00
Alexey Milovidov
0a7edce036 Checkpoint 2020-04-22 09:01:33 +03:00
alexey-milovidov
fcf5c3c6e1
Merge pull request #10399 from ClickHouse/fix-distributed_group_by_no_merge-segfault 
Fix segfault with distributed_group_by_no_merge
 2020-04-22 01:28:02 +03:00
Nikolai Kochetov
87a0b40ace Do not create extra totals and extremes ports. 2020-04-21 12:31:40 +03:00
Alexey Milovidov
2987e70aab Introduce "max_server_memory_usage" setting 2020-04-20 01:59:21 +03:00
Alexey Milovidov
8ad04d4fec Remove useless code 2020-04-15 00:05:45 +03:00
Nikolai Kochetov
458c7f516d Fix extremes for Processors. 2020-04-08 21:50:14 +03:00
Ivan Lezhankin
06446b4f08 dbms/ → src/ 2020-04-03 18:14:31 +03:00