Robert Schulze
15ae2d1de5
Merge branch 'master' into aiven-sal/siphash_pr
2023-01-29 21:06:52 +01:00
Robert Schulze
6195456d5b
Fix formatting
2023-01-29 19:58:59 +00:00
Alexey Milovidov
5f4726eb2a
Merge pull request #45717 from Performica/topKWeighted-better-example
...
improve explanatory of topKWeighted example
2023-01-29 06:24:32 +03:00
Alexey Milovidov
0f7f490302
Merge pull request #45716 from Performica/maxMap-intuitive-example
...
More intuitive maxMap example
2023-01-29 06:23:54 +03:00
freedomDR
876a92d4d1
add doc about system sync file cache.
2023-01-28 04:27:10 +00:00
robot-ch-test-poll
cb803a887a
Merge pull request #45660 from abidino/patch-2
...
Update sum.md
2023-01-28 01:52:06 +01:00
Alexey Milovidov
bc2f454522
Merge branch 'master' into block-non-float-gorilla-v2
2023-01-28 03:30:12 +03:00
Alexey Milovidov
0ffc8f048b
Merge pull request #45464 from lesandie/patch-1
...
Update skipping-index.md
2023-01-28 03:27:44 +03:00
ivan-klass
b83e60b1d7
improve explanatory of topKWeighted example
2023-01-28 00:20:15 +01:00
ivan-klass
8a6c4bec13
More intuitive maxMap example
...
Different types used to easier distinguish maxMap keys vs values
2023-01-27 23:41:55 +01:00
Robert Schulze
4abd395153
Docs: Fix typo
2023-01-27 13:39:50 +00:00
Robert Schulze
5edf321927
Some docs fixes
2023-01-27 13:00:54 +01:00
Salvatore Mesoraca
464ecf50ef
doc: functions: hash: add sipHash{64,128}Keyed
2023-01-27 13:00:54 +01:00
Salvatore Mesoraca
dfd6dfc155
doc: functions: siphash: fix broken links
2023-01-27 13:00:53 +01:00
Salvatore Mesoraca
15b1f3f6a1
doc: functions: siphash: use correct value in example
2023-01-27 13:00:53 +01:00
Alexey Milovidov
5b257ab806
Merge pull request #45233 from ClickHouse/improve_week_day
...
Revert "Revert "Improve week day""
2023-01-27 02:44:17 +03:00
Dan Roscigno
76d6e2edf9
Merge pull request #45569 from AVMusorin/docs_optimize_skip_merged_partitions
...
docs: added optimize_skip_merged_partitions setting
2023-01-26 16:04:27 -05:00
Dan Roscigno
f8bd83a94f
Merge pull request #45595 from den-crane/patch-59
...
Doc. Update range_hashed description
2023-01-26 16:01:52 -05:00
Diego Nieto
836e14e52b
Update skipping-index.md
...
Deleted the confusing comment and added implemented as a mutation, like MATERIALIZE INDEX.
2023-01-26 17:23:39 +01:00
Diego Nieto
ec378fc4d6
Merge branch 'ClickHouse:master' into patch-1
2023-01-26 17:17:35 +01:00
abidino
cba266c965
Update sum.md
2023-01-26 17:33:30 +03:00
Dan Roscigno
b4ab361366
Merge branch 'master' into docs_optimize_skip_merged_partitions
2023-01-25 19:45:32 -05:00
Dan Roscigno
55c9b03c47
Update docs/en/sql-reference/statements/optimize.md
2023-01-25 19:45:25 -05:00
rfraposa
a1de808d11
Update mongodb.md
2023-01-25 11:44:13 -07:00
rfraposa
8d44f2aec1
Create mongodb.md
2023-01-25 11:31:07 -07:00
Robert Schulze
d1eb9264ed
Merge remote-tracking branch 'origin/master' into docs-explain-plan
2023-01-25 11:05:46 +00:00
Robert Schulze
da7a657f1f
Docs: fix docs of EXPLAIN PLAN indexes=1
2023-01-25 11:02:50 +00:00
Robert Schulze
0148ad0e0e
Merge pull request #45598 from ClickHouse/typo-fix
...
Typo: "Granulesis" --> "Granules"
2023-01-25 11:52:11 +01:00
Robert Schulze
fd45295ff4
Typo: "Granulesis" --> "Granules"
2023-01-25 10:49:30 +00:00
Denny Crane
fda47bf4f8
Update external-dicts-dict-layout.md
2023-01-24 21:31:43 -04:00
Dan Roscigno
1cc3708092
Merge branch 'master' into update-settings-url
2023-01-24 19:51:39 -05:00
DanRoscigno
77ae27f26c
update for split of format settings
2023-01-24 19:37:55 -05:00
Robert Schulze
87ca5dcdf2
Document start of week in function date_diff()
2023-01-24 20:18:59 +00:00
AVMusorin
5f8658b2d6
docs: added optimize_skip_merged_partitions setting
2023-01-24 14:56:39 +01:00
Robert Schulze
574cab5d7e
Remove transitory parameter
2023-01-24 11:05:29 +00:00
Robert Schulze
aaf7653108
Merge remote-tracking branch 'origin/master' into block-non-float-gorilla-v2
2023-01-24 10:14:10 +00:00
rfraposa
33770303a0
Add DISTINCT to INTERSECT and EXCEPT
2023-01-23 17:10:30 -07:00
Diego Nieto
c4266588c6
Merge branch 'master' into patch-1
2023-01-23 20:50:37 +01:00
Dan Roscigno
ee31da9e1e
Merge pull request #45366 from gingerwizard/cross-link-docs
...
link docs to blogs
2023-01-23 14:04:59 -05:00
Robert Schulze
0ab7ae6c17
Merge pull request #43797 from ClickHouse/query-result-cache
...
Query result cache [experimental]
2023-01-23 19:54:35 +01:00
Sergei Trifonov
e1b20e4314
Merge pull request #45503 from ClickHouse/serxa-patch-3
...
Provide more clear syntax for `fromUnixTimestamp64*` and `toUnixTimestamp64*` functions
2023-01-23 16:28:32 +01:00
Denny Crane
531ad1661e
Update column.md
2023-01-23 09:57:42 -04:00
Denny Crane
4d9be1ef4f
Update column.md
2023-01-23 09:57:04 -04:00
Denny Crane
2bf59fd48c
Update column.md
2023-01-23 09:55:30 -04:00
Sergei Trifonov
e0fa5b9bac
Update type-conversion-functions.md
2023-01-23 12:26:24 +01:00
Robert Schulze
340f406553
Merge branch 'master' into query-result-cache
2023-01-22 13:21:36 +01:00
Robert Schulze
97d1bed114
Merge branch 'master' into improve_week_day
2023-01-21 20:40:33 +01:00
Robert Schulze
e6167d6b36
Deprecate Gorilla compression of non-float columns
...
Reasons:
1. The original Gorilla paper proposed a compression schema for pairs of
time stamps and double-precision FP values. ClickHouse's Gorilla
codec only implements compression of the latter and it does not
impose any data type restrictions.
- Data types != Float* or (U)Int* (e.g. Decimal, Point etc.) are
definitely not supposed to be used with Gorilla.
- (U)Int* types are debatable. The paper only considers
integers-stored-as-FP-values, a practical use case for which
Gorilla works well. Standalone integers are not considered which
makes them at least suspicious.
2. Achieve consistency with FPC, another specialized floating-point
timeseries codec, which rejects non-float data.
3. On practical datasets, ZSTD is often "good enough" (**) so it should
be okay to disincentive non-ZSTD codecs a little bit. If needed,
Delta and DoubleDelta codecs are viable alternative for slowly
changing (time-series-like) integer sequences.
Since on-prem and hosted users may still have Gorilla-compressed
non-float data, this combination is only deprecated for now. No warning
or error will be emitted. Users are encouraged to migrate
Gorilla-compressed non-float data to an alternative codec. It is planned
to treat Gorilla-compressed non-float columns as "suspicious" six months
after this commit (i.e. in v23.6). Even then, it will still be possible
to set "allow_suspicious_codecs = true" and read and write
Gorilla-compressed non-float data.
(*) Sec. 4.1.2, "Gorilla restricts the value element in its tuple to a
double floating point type.", https://doi.org/10.14778/2824032.2824078
(**) https://clickhouse.com/blog/optimize-clickhouse-codecs-compression-schema
2023-01-20 17:31:16 +00:00
Robert Schulze
4ac17d71fa
Merge pull request #45470 from ClickHouse/rs-doc-typos
...
Fix typos
2023-01-20 14:39:27 +01:00
Robert Schulze
3f2e4c8217
Fix typos
2023-01-20 13:20:25 +00:00
