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1040 Commits

Author SHA1 Message Date
Alexey Zatelepin
61f0b32757 forbid ALTER of partition key columns for now [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
1be62b567e safeguards to protect against distinct partition values with the same partition_id [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
728a23f60e allow creation of custom-partitioned tables with experimental syntax [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
a10ba0cd91 serialize partition key in Replicated tables metadata [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
909b46de0f add MergeTreeDataFormatVersion constant [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
68cb592277 allow arbitrary partition literals in ALTER PARTITION queries [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
f0995f2741 partition serialization into id and text [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
25bb444d5a absence of partitioning works [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
71ebf67f2e encapsulate partition and minmax_idx load/store code [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
6906921932 load partition and minmax index from disk [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
e9f93028b8 serialize partition and minmax index values [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Alexey Zatelepin
2f80c150db save MergeTree data format version and parse part names depending on it [#CLICKHOUSE-3000] 2017-09-26 20:40:02 +03:00
Nikolai Kochetov
322e56c692 fix reading with preferred_block_size_bytes = 0 2017-09-24 02:16:30 +03:00
Alexey Zatelepin
df58949a68 make exit out of the loop possible when ZooKeeper is unavailable [#CLICKHOUSE-3259] 2017-09-20 06:05:20 +03:00
Alexey Zatelepin
ba87fa395c be more conservative when deleting replication queue items in PartCheckThread [#CLICKHOUSE-3258] 2017-09-20 06:05:20 +03:00
proller
0a0e04f1a5 Fix includes 2017-09-18 21:52:47 +03:00
Vitaliy Lyudvichenko
826c354ff5 Fixed merges progress bar. [#CLICKHOUSE-2] 2017-09-15 01:04:13 +03:00
proller
5054d50307 Remove too noisy message (#CLICKHOUSE-3304) 2017-09-11 21:26:43 +03:00
Alexey Milovidov
cd540c2674 Replaced Mersenne Twister to PCG-Random [#CLICKHOUSE-2]. 2017-09-10 02:17:38 +03:00
Alexey Milovidov
d29c77adea Implemented some suggestions from clang-tidy (part 3) [#CLICKHOUSE-3301]. 2017-09-08 06:47:27 +03:00
Alexey Milovidov
6307661c35 Addition to prev. revision [#CLICKHOUSE-3300]. 2017-09-08 00:26:25 +03:00
Alexey Milovidov
8b313ab99e Fixed warnings found by cppcheck [#CLICKHOUSE-3300]. 2017-09-08 00:04:48 +03:00
Alexey Milovidov
d82b87aaef Fixed redundand code in better way [#CLICKHOUSE-3281]. 2017-09-06 06:24:39 +03:00
Vitaliy Lyudvichenko
d55d5eca46 Remove extra Context reference and add required ones. Part 2. [#CLICKHOUSE-3117] 2017-09-06 04:18:07 +03:00
Alexey Milovidov
4d97959e57 Merge branch 'master' into unify-data-types-that-serialized-with-multiple-streams 2017-09-04 04:11:00 +03:00
Alexey Milovidov
40884640a1 Merge branch 'master' of github.com:yandex/ClickHouse 2017-09-01 21:21:05 +03:00
Alexey Milovidov
2af8747164 Removed obsolete code [#CLICKHOUSE-3270]. 2017-09-01 21:21:01 +03:00
alexey-milovidov
775d95888a Merge pull request #1163 from yandex/CLICKHOUSE-2931 
Introduce SYSTEM queries
 2017-09-01 20:45:29 +03:00
Vitaliy Lyudvichenko
566160c048 Use FIFO lock in IStorage. [#CLICKHOUSE-3246] 2017-09-01 20:45:05 +03:00
proller
1a8e22c37f Allow compile on 32bit systems (#1175) 
* Trying compile under 32bit..

* PerformanceTest: use getMultiple*FromConfig, fix debug helpers

* Missing file

* clnag-format of Split ComplexKeyCacheDictionary

* wip

* Requested changes

* wip

* wip

* Fix boost 1.64 and gcc7+ compile errors

* More fixes

* wip

* Fix arm build

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* clean

* fix

* wip

* wip

* clean

* clean

* wip

* wip

* Update MergeTreeSettings.h

* Requested changes

* Requested changes

* Requested changes

* Requested changes
 2017-09-01 20:21:03 +03:00
Nikolai Kochetov
937f37c489 fixed reading of empty block in prewhere [#CLICKHOUSE-3266] 2017-09-01 15:18:40 +03:00
Nikolai Kochetov
a9e2a17f69 fixed estimateNumRows in MergeTreeBlockSizePredictor; fixed reading of empty block in prewhere; added test [#CLICKHOUSE-3266] 2017-09-01 15:18:40 +03:00
Alexey Zatelepin
d2847f22af PR fixes [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
61987df169 check alter of partition key columns [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
dc5809ed8d get rid of unneeded variable [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
34ac0e0876 remove unnecessary include [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
14ba0a9acf rename partition -> partition_id for clarity [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
645e4b7a53 generalize MinMax index [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
5471979f46 generic partitioning of inserted blocks [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
be1c62d7f8 split partition and minmax index [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
Alexey Zatelepin
99969ab77a Introduce MergeTreePartitionIndex. Isolate its loading code. [#CLICKHOUSE-3000] 2017-08-31 23:32:03 +03:00
alexey-milovidov
5d14855989 Merge branch 'master' into CLICKHOUSE-2931 2017-08-31 00:23:39 +03:00
Alexey Milovidov
e4eb6f0cfb Fixed bad translation [#CLICKHOUSE-2]. 2017-08-29 22:02:07 +03:00
Alexey Milovidov
709eba2a00 Merge branch 'master' of github.com:yandex/ClickHouse 2017-08-29 21:51:58 +03:00
Alexey Milovidov
04af7a3349 Fixed bad translation [#CLICKHOUSE-2]. 2017-08-29 21:51:48 +03:00
Vitaliy Lyudvichenko
84660029ec Don't leave trash part nodes in ZK in case of deleting non-existing duplicated parts. [#CLICKHOUSE-3252] 2017-08-29 20:49:37 +03:00
Alexey Milovidov
8d7937cc30 Fixed bad translation [#CLICKHOUSE-2]. 2017-08-29 17:08:25 +03:00
Vitaliy Lyudvichenko
48f5d8f1a3 Add SYSTEM DROP DNS CACHE. [#CLICKHOUSE-2931] 2017-08-28 20:27:16 +03:00
Alexey Milovidov
e25f232b5a Raising limit on max size for merge (step 1 of 4) [#CLICKHOUSE-2] 2017-08-19 01:56:19 +03:00
Alexey Milovidov
e01c23267a Merge branch 'master' into unify-data-types-that-serialized-with-multiple-streams 2017-08-18 22:41:27 +03:00
Vitaliy Lyudvichenko
f28d0cff3c Add more detailed exception message. [#CLICKHOUSE-3234] 2017-08-17 23:06:38 +03:00
Nikolai Kochetov
850bc9f19d fixed reading const zero column in prewhere 2017-08-17 23:06:00 +03:00
proller
175cd99288 Freebsd fixes: fix build with libc++, fix find system lib double-conversion (#1109) 
* Cmake: Don't detect and use -no-pie flag with clang

* Camke: find_unwind: Fix disable on arm

* Freebsd fixes: fix build with libc++, fix find system lib double-conversion
 2017-08-17 00:01:43 +03:00
Alexey Milovidov
3a86673aea Fixed error when part could become broken during ALTER MODIFY of element of Nested column [#CLICKHOUSE-3232]. 2017-08-16 22:41:52 +03:00
Alexey Milovidov
164ad05ae1 Little better [#CLICKHOUSE-3231]. 2017-08-16 22:22:49 +03:00
Alexey Zatelepin
0185fd4542 fix parsing min-max dates from part name [#CLICKHOUSE-3000] 2017-08-15 23:03:59 +03:00
Alexey Zatelepin
372801c59b fix comments [#CLICKHOUSE-3000] 2017-08-15 22:30:52 +03:00
Alexey Zatelepin
0df4ae6b02 do not use unnecessary temporary objects to query a set of parts [#CLICKHOUSE-3000] 2017-08-15 22:30:52 +03:00
Alexey Zatelepin
f25f0cd759 reduce number of places where partitioning by month is assumed [#CLICKHOUSE-3000] 2017-08-15 22:30:52 +03:00
Vitaliy Lyudvichenko
8a14cc49ff asyncMulti() -> multi(). [#CLICKHOUSE-3221] 2017-08-15 19:18:02 +03:00
alexey-milovidov
9b99dfb53d Merge pull request #1031 from yandex/wait-for-insertion-in-distributed 
Wait for insertion in distributed
 2017-08-11 21:35:13 +03:00
Nikolai Kochetov
90940d8423 Cluster and DistributedBlockOutputStream refactoring [#CLICKHOUSE-3033] 2017-08-11 18:02:07 +03:00
Vitaliy Lyudvichenko
cd3a696d8b Add requested changes. [#CLICKHOUSE-3207] 2017-08-10 23:09:05 +03:00
Vitaliy Lyudvichenko
351a0905d5 Implemented fast block and parts cleaning. [#CLICKHOUSE-3207] 2017-08-10 23:09:05 +03:00
Alexey Milovidov
e86d0b4a74 Merge branch 'master' of github.com:yandex/ClickHouse 2017-08-10 00:07:10 +03:00
Alexey Milovidov
56a5bb53fa Miscellaneous [#CLICKHOUSE-2]. 2017-08-10 00:07:01 +03:00
Vitaliy Lyudvichenko
27174d9dd2 Avoid many checks of sending parts if sendings fail due to network error. [#CLICKHOUSE-2] 2017-08-09 23:57:42 +03:00
Vitaliy Lyudvichenko
00ce8c9603 Add ctime caching in MergeTree's cleaner. [#CLICKHOUSE-3173] 2017-08-08 03:28:43 +03:00
Alexey Milovidov
fb2aff4704 Unification of data types, that is serialized with multiple streams [#CLICKHOUSE-2838]. 2017-08-07 10:31:16 +03:00
Vitaliy Lyudvichenko
10c14cfccb Small code enhancements according to clang-tidy. [#CLICKHOUSE-2931] 2017-08-04 17:35:36 +03:00
Nikolai Kochetov
0c15b2c6fc fixed number of rows to read from first granula in mergetree 2017-08-03 15:58:04 +03:00
alexey-milovidov
ae8783aee3 Merge pull request #1045 from prog8/nocompression 
Added compression NONE
 2017-08-01 23:07:52 +03:00
alexey-milovidov
2ae6f1ebdb Update MergeTreeDataWriter.cpp 2017-08-01 23:07:16 +03:00
Pawel Rog
d6a2056851 Applied changes requested by Alexey 2017-08-01 16:48:24 +02:00
Pawel Rog
9f799820d9 Applied changes requested by Alexey 2017-08-01 10:12:15 +02:00
Alexey Milovidov
6578fb2645 Fixed error [#CLICKHOUSE-3191]. 2017-08-01 00:39:24 +03:00
alexey-milovidov
d174ebc5c9 Update MergeTreeDataWriter.cpp 2017-07-31 20:44:58 +03:00
alexey-milovidov
4877aa394c Update MergeTreeData.cpp 2017-07-31 20:44:41 +03:00
Pawel Rog
3a6c444996 Merge branch 'master' into nocompression 2017-07-31 13:36:58 +02:00
Pawel Rog
e1ab721d3d Use compression method from configs 2017-07-31 13:12:28 +02:00
Pawel Rog
a0cc54457e Added compression NONE 2017-07-31 12:44:45 +02:00
Nikolai Kochetov
78991b25ee fixed preferred_max_column_in_block_size_bytes disabling 2017-07-30 01:24:57 +03:00
Alexey Milovidov
8fb452e99a Fixed wrong log message when removing temporary part after merge, that is not byte-identical than same part on replicas; added profile event; added fail-safe logic [#MTRSADMIN-3175]. 2017-07-29 00:25:24 +03:00
proller
700d4e0904 Fix boost 1.64 and gcc7+ compile errors (#1040) 
* PerformanceTest: use getMultiple*FromConfig, fix debug helpers

* Missing file

* clnag-format of Split ComplexKeyCacheDictionary

* Requested changes

* Fix boost 1.64 and gcc7+ compile errors

* More fixes
 2017-07-28 23:41:51 +03:00
alexey-milovidov
6917eb3153 Update MergeTreeBaseBlockInputStream.cpp 2017-07-28 22:29:40 +03:00
Nikolai Kochetov
b714d2b514 fixed column size calculation for Array column in MergeTreeReader::readRows 2017-07-28 22:29:40 +03:00
Nikolai Kochetov
d9f4f9b0f9 changed skipping rows for Array columns in MergeTreeBaseBlockInputStream 2017-07-28 22:29:40 +03:00
Alexey Milovidov
dd1f54bce2 Changed Poco::RWLock to std::shared_lock [#APRILDEV-91]. 2017-07-28 20:34:02 +03:00
Vitaliy Lyudvichenko
515271544d Add detail comment. [#CLICKHOUSE-3173] 2017-07-27 11:19:20 +03:00
Vitaliy Lyudvichenko
445608afec Fix an iterator pointing after std::end(). [#CLICKHOUSE-3173] 2017-07-27 11:19:20 +03:00
alexey-milovidov
73c2a1483d Update ReplicatedMergeTreeCleanupThread.cpp 2017-07-27 11:19:20 +03:00
alexey-milovidov
dcd7354fb2 Update ReplicatedMergeTreeCleanupThread.cpp 2017-07-27 11:19:20 +03:00
alexey-milovidov
d6750880e0 Update ReplicatedMergeTreeCleanupThread.cpp 2017-07-27 11:19:20 +03:00
Vitaliy Lyudvichenko
cd5bb4d921 Add replicated_deduplication_window_seconds merge_tree parameter. [#CLICKHOUSE-3173] 2017-07-27 11:19:20 +03:00
Vitaliy Lyudvichenko
dcc4d3bff0 Avoid zxid overflow problem when cleaning old blocks used in the deduplication. [#CLICKHOUSE-3173] 2017-07-27 11:19:20 +03:00
Nikolai Kochetov
01a004050d fixed MergeTreeBlockSizePredictor updating from empy block while reading 2017-07-26 20:03:09 +03:00
Alexey Milovidov
4a4e863f9d Fixed warning on clang 6 [#CLICKHOUSE-2]. 2017-07-25 01:44:13 +03:00
Nikolai Kochetov
fcd50e3629 fixed comment 2017-07-24 18:06:32 +03:00
Nikolai Kochetov
b55dcc9f93 cnanged comments; fixed 00443_preferred_block_size_bytes test 2017-07-24 16:59:03 +03:00
Nikolai Kochetov
bc0921a64e added comments 2017-07-21 21:02:02 +03:00
Nikolai Kochetov
c64b65ee29 ignore preferred_max_column_in_block_size_bytes if zero [#CLICKHOUSE-3170] 2017-07-21 20:45:51 +03:00
Nikolai Kochetov
755d16b22d set min block size as index granularity for max_block_size limit during reading [#CLICKHOUSE-3170] 2017-07-21 14:55:33 +03:00
Alexey Milovidov
c7b1e92522 Fixed error after merge [#CLICKHOUSE-3150]. 2017-07-21 09:40:05 +03:00
alexey-milovidov
d4d266fa18 ColumnConst unification (#1011) 
* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* Fixed error in ColumnArray::replicateGeneric [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].

* ColumnConst: unification (incomplete) [#CLICKHOUSE-3150].
 2017-07-21 09:35:58 +03:00
alexey-milovidov
1a1112d8bb Update MergeTreeBlockReadUtils.h 2017-07-20 23:45:23 +03:00
Nikolai Kochetov
0b7439469d fixed MergeTreeBlockSizePredictor initialization for sample block 2017-07-20 23:45:23 +03:00
Nikolai Kochetov
00ae32c946 renamed approximate_number_of_rows_in_part to number_of_rows_in_part 2017-07-20 23:45:23 +03:00
Nikolai Kochetov
e612152584 changed initialization in MergeTreeBlockSizePredictor 2017-07-20 23:45:23 +03:00
Nikolai Kochetov
2afd84c40c fixed is_reading_finished status assignment in MergeTreeRangeReader [#CLICKHOUSE-3161] 2017-07-19 19:39:18 +03:00
Nikolai Kochetov
b5e94ede62 fixed is_reading_finished status assignment in MergeTreeRangeReader [#CLICKHOUSE-3161] 2017-07-19 16:44:46 +03:00
Alexey Milovidov
6e6e9f9d38 Removed useless variable [#CLICKHOUSE-3161]. 2017-07-19 04:05:39 +03:00
Nikolai Kochetov
7e293df9af merged with master 2017-07-17 22:48:22 +03:00
Nikolai Kochetov
eae94edd6b fixed vertical merge for ReplacingSortedBlockInputStream [#CLICKHOUSE-3131] 2017-07-17 22:40:30 +03:00
Alexey Milovidov
9406b6a5aa Get rid of ASTSet, because it is not really an AST and it lead to bugs [#CLICKHOUSE-3148]. 2017-07-15 06:48:36 +03:00
Nikolai Kochetov
a13423e552 added vertical merge for ReplacingSortedBlockInputStream 2017-07-14 21:17:23 +03:00
Alexey Milovidov
1a0f5dd7cf Getting rid of ASTSet (incomplete) [#CLICKHOUSE-2] 2017-07-14 03:33:37 +03:00
Nikolai Kochetov
283810e8ab merged with master 2017-07-13 23:59:34 +03:00
Nikolai Kochetov
75be0b81d8 removed typeid_cast from IColumn.h 2017-07-13 23:58:19 +03:00
Nikolai Kochetov
210f14aaba renamed IDataType::updateAvgValueSizeHints to IDataType::updateAvgValueSizeHint 2017-07-13 21:54:17 +03:00
Nikolai Kochetov
f3f217b40a fixed tests 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
546012079c fixed reading with zero max block size setting 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
e2d032b883 fixed reading with zero max block size setting 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
8ea812e669 better comment for MergeTreeRangeReader 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
f232afd2f8 round number of rows to nearest mark in MergeTreeBaseBlockInputStream 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
f1775af3f0 deleted commented code 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
30ed774bf7 refactoring and more comments in MergeTreeBaseBlockInputStream [#CLICKHOUSE-3065] 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
89386394aa refactoring and more comments in MergeTreeBaseBlockInputStream [#CLICKHOUSE-3065] 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
8c65d6013e added preferred_max_column_in_block_size_bytes setting, added filtration ratio prediction [#CLICKHOUSE-3065] 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
4470afc9a9 added estimateNumRowsMax to MergeTreeBlockSizePredictor based on max column size 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
6b29b3bd47 round number of rows to next mark in MergeTreeBaseBlockInputStream 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
d14f64af7b delected commented logging code 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
586dff9126 delay reading for granulas if prewhere column is false during partial granula reading 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
86680f5513 fixed partial granula reading for const columns in prewhere 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
609711b20c partial part reading with prewhere 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
c6d5ef6d30 added MergeTreeRangeReader 2017-07-13 21:45:09 +03:00
Nikolai Kochetov
985e449bd3 added IDataType::updateAvgValueSizeHints; renamed PODArray::allocated_size to PODArray::allocated_bytes; renamed renamed IColumn::allocatedSize to IColumn::allocatedBytes; removed IColumn.h from IDataType.h 2017-07-13 19:49:09 +03:00
Alexey Milovidov
de75fa000b Using lexer (incomplete) [#CLICKHOUSE-2]. 2017-07-13 08:59:01 +03:00
Alexey Milovidov
83c8043193 Using lexer (incomplete) [#CLICKHOUSE-2]. 2017-07-13 08:59:01 +03:00
Alexey Milovidov
4b1eeee1a3 Using lexer (incomplete) [#CLICKHOUSE-2]. 2017-07-13 08:59:01 +03:00
Alexey Zatelepin
58d541b740 slightly more robust ReplicatedMergeTreePartCheckThread::TemporarilyStop [#CLICKHOUSE-3074] 2017-07-12 20:09:44 +03:00
Vitaliy Lyudvichenko
b843ea5b3f Resolves #964. Fixed input_format_skip_unknown_fields for negative numbers. [#CLICKHOUSE-3] 2017-07-11 21:36:51 +03:00
Alexey Zatelepin
4a98d83a3b introduce replicated_can_become_leader merge_tree setting [#CLICKHOUSE-3109] 2017-07-11 20:44:35 +03:00
Alexey Milovidov
2bd84600d1 Miscellaneous [#CLICKHOUSE-2]. 2017-07-11 04:20:40 +03:00
alexey-milovidov
b64b243a73 Merge pull request #945 from YiuRULE/master 
Implement natively uuid type in Clickhouse
 2017-07-10 07:00:45 +03:00
Alexey Zatelepin
89939a685a Stream row sources from disk for vertical merge [#CLICKHOUSE-3118] 2017-07-09 21:57:06 +03:00
Marek Vavruša
ff73394124 PKCondition: infer index use with pk subexpression 
By default only constraints explicitly matching
primary key expression (or expression wrapped in
a monotonic function) are eligible for part and
range selection. So for example, if index is:

(toStartOfHour(dt), UserID)

Then a query such as this resorts to full scan:

SELECT count() FROM t WHERE dt = now()

Intuitively, only parts with toStartOfHour(now())
could be selected, but it is less trivial to prove.
The primary key currently can be wrapped in a chain
of monotonic functions, so following would work:

toStartOfHour(dt) = toStartOfHour(now()) AND dt = now()

It must be however explicitly stated, if we wanted
to infer that we’d have to know the inverse function,
and prove that the inverse function is monotonic
on given interval. This is not practical as
there is no inverse function that for example undos
rounding, it isn’t strictly monotonic.

There are however functions that don’t transform
output range and preserve monotonicity on the
complete input range, such as rounding or casts
to a same or wider numeric type. This eliminates
the need to find inverse function, as no check for monotonicity over arbitrary interval is needed,
and thus makes this optimisation possible.
 2017-07-09 17:13:51 +03:00
Alexey Milovidov
032d12d431 Fixed translation error [#CLICKHOUSE-2]. 2017-07-04 15:46:31 +03:00
Guillaume Tassery
cba9815981 Change Uuid to UUID datatype and make UInt128 a generic type 2017-07-04 12:42:53 +02:00
Guillaume Tassery
525851ec68 sync master 2017-06-30 22:21:42 +02:00
Guillaume Tassery
1231952fca Implement UUID type and toUuid function 2017-06-30 22:01:27 +02:00