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Author SHA1 Message Date
Azat Khuzhin
c2fa7ffcd3 Drop note about "estimation error for large sets will be large" 
Since error is not that large, especially for uniqCombined64():

rows     error     uniqCombined64()/rows
- 1e7    0.00219   (1.0021969)
- 1e8    0.00096   (0.99903523)
- 2e8    0.50200   (1.005022735)
- 1e9    0.99944   (0.999435738)
- 1e10   0.01399   (0.9998568925)
- 1e11   0.09800   (1.00097891658)
- 1e12   0.29800   (0.997024870685)
- 1e13   0.62200   (1.0062169910992)
- 1e14   0.06200   (1.00062143604171)
 2019-10-10 02:03:14 +03:00
alesapin
9f0b3e5bbf Update dockerfiles 2019-10-09 23:33:23 +03:00
alexey-milovidov
2a94198445
Update mysql.md 2019-10-09 21:28:22 +03:00
alexey-milovidov
94f093829d
Update mysql.md 2019-10-09 21:28:01 +03:00
alexey-milovidov
689411abe0
Merge pull request #7222 from azat/uniqCombined64 
[RFC] Introduce uniqCombined64() to get sane results for cardinality > UINT_MAX
 2019-10-09 20:29:56 +03:00
alexey-milovidov
0555749096
Update reference.md 2019-10-09 20:29:12 +03:00
alexey-milovidov
6d31c3e730
Update reference.md 2019-10-09 20:28:15 +03:00
alexey-milovidov
6cd3e9a458
Update AggregateFunctionUniqCombined.h 2019-10-09 20:26:01 +03:00
alexey-milovidov
81a9c81ba7
Merge pull request #7236 from azat/uniqCombined-memory-usage 
Do not use more then 98K of memory for uniqCombined*
 2019-10-09 20:19:30 +03:00
alexey-milovidov
e3861e0e88
Merge pull request #7242 from azat/sparse_hashed-name 
Return SparseHashed name (system.dictionaries:type) for the sparse_hashed layout
 2019-10-09 20:12:24 +03:00
alexey-milovidov
f3e1ba8ecd
Merge pull request #7243 from vinity/master 
Grammatical mistake
 2019-10-09 20:11:19 +03:00
alexey-milovidov
01e08a23c2
Merge pull request #7240 from ClickHouse/function-get-macro 
Added function `getMacro`
 2019-10-09 15:28:54 +03:00
Alexander Kuzmenkov
1965c612ab Fix sorting in clickhouse-test. 2019-10-09 14:56:51 +03:00
Ivan Lezhankin
340705f1ca Fix backporting script 
Rename yandex → ClickHouse
 2019-10-09 14:37:20 +03:00
Ivan Blinkov
1a2b5f6175
Remove link to (almost) past meetup 2019-10-09 14:36:55 +03:00
Alexander Kuzmenkov
89ebd4885f Fix test filtering in clickhouse-test. 2019-10-09 13:51:59 +03:00
alesapin
ef0b2f5936
Merge pull request #7209 from ClickHouse/dictionaries_ddl_parser 
Dictionaries ddl parser
 2019-10-09 12:51:08 +03:00
vinity
e0aa30fa43
Grammatical mistake 2019-10-09 14:30:04 +05:30
Azat Khuzhin
0ff823b574 Return SparseHashed name (system.dictionaries:type) for the sparse_hashed layout 
Due to tons of rebasing this bit had been forgotten.

Refs: 420089c301 ("Add new dictionary layout (sparse_hashed) that is more memory efficient")
 2019-10-09 11:11:41 +03:00
alexey-milovidov
9b2e025918
Merge pull request #7234 from ClickHouse/aku/null-field-serialization 
Serialize Null Fields correctly in DataTypeNullable.
 2019-10-09 04:30:37 +03:00
alexey-milovidov
c200c38409
Merge pull request #7205 from amosbird/debfix 
Make sure dh_clean not touch potential source files.
 2019-10-09 04:29:55 +03:00
Alexey Milovidov
6d2a79e832 Added a test 2019-10-09 04:18:12 +03:00
Alexey Milovidov
552e4b4be2 Added example config with macros for tests 2019-10-09 04:16:34 +03:00
Alexey Milovidov
a19f6513ce Added example config with macros 2019-10-09 04:15:23 +03:00
Alexey Milovidov
9f8d562543 Add function "getMacro" #7239 2019-10-09 04:14:57 +03:00
Azat Khuzhin
e373862c83 Do not use more then 98K of memory for uniqCombined* 
uniqCombined() uses hashtable for medium cardinality, and since
HashTable resize by the power of 2 (well actually HashTableGrower grows
double by the power of 2, hence HashTableGrower::increaseSize() should
be overwritten to change this), with 1<<13 (default for uniqCombined)
and UInt64 HashValueType, the HashTable will takes:

  getBufferSizeInBytes() == 131072

While it should be not greater then sizeof(HLL) ~= 98K, so reduce the
maximum cardinality for hashtable to 1<<12 with UInt64 HashValueType and
to 1<13 with UInt32, overwrite HashTableGrower::increaseSize() and cover
this using max_memory_usage.

Refs: https://github.com/ClickHouse/ClickHouse/pull/7221#issuecomment-539672742

v2: cover uniqCombined() with non-default K
 2019-10-09 02:39:23 +03:00
alexey-milovidov
e6b9f9c70b
Update CHANGELOG.md 2019-10-09 02:15:51 +03:00
Amos Bird
56aa191ca5 Make sure dh_clean not touch source files 2019-10-09 04:34:21 +08:00
alexey-milovidov
4c1f0177b6
Merge pull request #7109 from infinivision/aggBitmapAnd 
added groupBitmapAnd, groupBitmapOr, groupBitmapXor
 2019-10-08 22:51:46 +03:00
alexey-milovidov
5c2d478543
Merge pull request #7212 from ClickHouse/aku/field-includes 
Include Field.h and FieldVisitor.h into fewer files.
 2019-10-08 22:40:30 +03:00
alesapin
5296be18f3 Fix desc table query 2019-10-08 22:39:20 +03:00
alexey-milovidov
b9aa5d812d
Merge pull request #7171 from nikvas0/nikvas0/lazy_db 
Lazy Database
 2019-10-08 22:15:55 +03:00
alexey-milovidov
e846aea5c8
Update lazy.md 2019-10-08 22:15:30 +03:00
Azat Khuzhin
f46c5a47c0 Introduce uniqCombined64() to get sane results for cardinality > UINT_MAX 
By default uniqCombined() uses 32-bit hash for all types except String,
so this means that you cannot use uniqCombined() with i.e UInt64 and
cardinality > UINT_MAX, although you can use uniqCombined(toString())
and this will lead to 64-bit hash, but will not have good performance.

So uniqCombined64() had been introduced to fix this.

Requires: #7213
 2019-10-08 21:59:35 +03:00
alexey-milovidov
ddc2299901
Update 01016_null_part_minmax.sql 2019-10-08 21:52:48 +03:00
alexey-milovidov
d8b3db65f7
Merge pull request #7213 from azat/fix-uniqCombined-approximation 
Fix uniqCombined() result for >UINT_MAX values (return UInt64 to avoid overflow)
 2019-10-08 21:45:23 +03:00
alexey-milovidov
e619304b2c
Merge pull request #7216 from ClickHouse/nicelulu-issue-6615 
Merging "Optimize empty IN subquery and empty INNER/RIGHT JOIN"
 2019-10-08 21:36:57 +03:00
Alexander Kuzmenkov
a5b1496fe9 Serialize Null Fields correctly in DataTypeNullable. 2019-10-08 21:21:24 +03:00
Alexander Kuzmenkov
ef75b0f50d
Merge pull request #7226 from ClickHouse/aku/clickhouse-test 
Accept multiple test filter arguments in clickhouse-test.
 2019-10-08 19:09:19 +03:00
Denis Zhuravlev
6f51d92031 Doc change. Added links to other doc articles (distributed.md) (#7144) 2019-10-08 16:56:48 +03:00
alesapin
5ea1a12c05 Refactoring and comments 2019-10-08 16:26:15 +03:00
Alexander Kuzmenkov
2b30f2696c Include Field.h in less files. 2019-10-08 16:23:24 +03:00
alesapin
7b545f9b18 Fix style 2019-10-08 15:35:17 +03:00
alesapin
cd05564b17 Add show create dictionary 2019-10-08 15:34:04 +03:00
Alexander Kuzmenkov
46f5115601 Accept many test name regexes in clickhouse-test. 
Sometimes it is more convenient to supply space-separated test names
without having to concatenate them into one regex with pipes.
 2019-10-08 14:32:03 +03:00
alesapin
0883b3f8a9 Parser for drop dictionary query 2019-10-08 14:10:29 +03:00
alesapin
db20681207 Better declaration and lifetime parser 2019-10-08 13:50:57 +03:00
alesapin
5f81f47637 Add recursive parsing of pairs 2019-10-08 12:47:17 +03:00
alesapin
470dca548b Merge branch 'master' into dictionaries_ddl_parser 2019-10-08 12:02:28 +03:00
alesapin
e31f33bc1c Fix category search in changelog script 2019-10-08 11:59:29 +03:00