Commit Graph

966 Commits

Author SHA1 Message Date
Robert Schulze
da7a657f1f
Docs: fix docs of EXPLAIN PLAN indexes=1 2023-01-25 11:02:50 +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
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
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
Diego Nieto
a2b342bcbe
Update skipping-index.md
ADD and DROP are not such lightweight command they generate mutations to deal with the changes and they will take time to complete depending on how much data the table has.
2023-01-20 12:32:50 +01:00
Dale Mcdiarmid
9c4d3e0ffb link docs to blogs 2023-01-17 15:38:10 +00:00
Robert Schulze
099e30ef2a
Merge remote-tracking branch 'origin/master' into query-result-cache 2023-01-16 08:04:49 +00:00
Kseniia Sumarokova
db3e0219fc
Merge pull request #41687 from ClickHouse/40907_Parameterized_views_as_table_functions
40907 Parameterized views as table functions
2023-01-12 14:24:32 +01:00
Sergei Trifonov
1b94c839d5
Add docs for SYSTEM RELOAD USERS 2023-01-11 21:16:22 +01:00
Robert Schulze
cbc18318ff
Merge pull request #45114 from ClickHouse/less-awkward-comment-about-debugging
Docs: Rewrite awkwardly phrased sentence about flush interval
2023-01-10 14:15:43 +01:00
Robert Schulze
6497ddd882
Docs: Rewrite awkwardly phrased sentence about flush interval 2023-01-10 13:13:35 +00:00
Robert Schulze
0c3b034887
Merge remote-tracking branch 'origin/master' into query-result-cache 2023-01-10 09:02:41 +00:00
Ivan Blinkov
61c2f23713 Remove leftover empty lines at the end of markdown files 2023-01-09 15:15:18 +01:00
Ivan Blinkov
b7e082d033 Remove "Original article links" 2023-01-09 15:13:36 +01:00
Robert Schulze
45dbcf88e5
Merge remote-tracking branch 'origin/master' into query-result-cache 2023-01-06 20:42:48 +00:00
DanRoscigno
2397318b1a add more about matching 2023-01-04 15:37:13 -05:00
DanRoscigno
df603911ea add example with file globbing 2023-01-04 11:36:38 -05:00
Smita Kulkarni
1f89db78a5 Added is_create_parameterized_view flag in ActionsVisitor, added functions for column manipulation for parameterized view in StorageView, updated tests to fix flaky test issues and addressed small review comments- 40907 Parameterized views as table functions 2023-01-03 11:00:39 +01:00
Robert Schulze
e9e04166d9
Merge remote-tracking branch 'origin/master' into query-result-cache 2023-01-02 08:20:27 +00:00
SmitaRKulkarni
4d7459bd65
Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-12-27 08:15:42 +01:00
Dan Roscigno
37826d6301
Update docs/en/sql-reference/statements/select/from.md 2022-12-22 11:13:36 -05:00
DanRoscigno
4da00b0b1d clarify which engines support final 2022-12-21 09:07:40 -05:00
DanRoscigno
e791e7bbfe clarify which engines support final 2022-12-21 08:58:12 -05:00
DanRoscigno
4981d4a013 clarify which engines support final 2022-12-21 08:55:38 -05:00
Robert Schulze
b93c56323c
Merge remote-tracking branch 'origin/master' into query-result-cache 2022-12-19 09:18:36 +00:00
Smita Kulkarni
16d8fd02fb Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-12-16 08:52:48 +01:00
Robert Schulze
3790952631
Move server-level settings into the appropriate document 2022-12-15 22:51:47 +00:00
Robert Schulze
537c64aad2
Merge remote-tracking branch 'origin/master' into query-result-cache
Conflicts:
- tests/queries/0_stateless/02117_show_create_table_system.reference
2022-12-15 12:17:58 +00:00
Dale Mcdiarmid
22e8477b2a cross link dictionaries + udf posts£ 2022-12-14 15:01:15 +00:00
Robert Schulze
b78652e138
Query result cache 2022-12-12 10:37:10 +00:00
Nikolay Degterinsky
43ef217134
Merge branch 'master' into patch-1 2022-12-09 10:01:18 +01:00
Nikolay Degterinsky
bd23b0fa61
Fix docs 2022-12-08 14:17:55 +01:00
vahid-sohrabloo
8594274e99
fix docs 2022-12-07 22:50:27 +01:00
DanRoscigno
538d9cf598 update link 2022-12-05 08:26:59 -05:00
Dan Roscigno
d8d364914d
Merge pull request #43774 from ClickHouse/DanRoscigno-patch-2
Clarify CREATE TABLE AS SELECT docs
2022-11-29 07:52:34 -05:00
Camden Cheek
92c9ebe4ee
Update documentation example for REPLACE TABLE
The example statement for `REPLACE TABLE` using a `SELECT` query does not run as written. The example was missing a query engine, engine options, and the `AS` keyword, all of which seem required to replace a table with the output of some query.
2022-11-28 17:41:52 -07:00
DanRoscigno
bad28f4a25 fix highlight 2022-11-28 14:19:00 -05:00
Dan Roscigno
4ab04d6461
Update table.md 2022-11-28 14:08:08 -05:00
Smita Kulkarni
953e1068b5 Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-11-28 19:10:32 +01:00
Nikolay Degterinsky
02ec25cdfe
Update explain.md 2022-11-27 13:40:46 +01:00
Dan Roscigno
b2b4e1017f
Merge pull request #43363 from CamiloSierraH/patch-6
ATTACH query ignores the SELECT query on MV
2022-11-23 11:35:15 -05:00
Dan Roscigno
31f346e2e5
Merge pull request #43330 from CamiloSierraH/patch-5
adding one link and note about disk usage for projections
2022-11-23 11:32:56 -05:00
Camilo Sierra
ca3f819401
Update docs/en/sql-reference/statements/create/view.md
Co-authored-by: Dan Roscigno <dan@roscigno.com>
2022-11-23 16:53:21 +01:00
Dan Roscigno
0e0fef4f51
Merge branch 'master' into patch-6 2022-11-23 10:41:39 -05:00
Dan Roscigno
02a0d4f2e5
Update docs/en/sql-reference/statements/alter/projection.md 2022-11-23 10:39:10 -05:00
Maksim Kita
db1b971643
Merge pull request #43451 from ClickHouse/explain-query-tree-run
Set run_passes to 1 by default
2022-11-23 01:30:49 +03:00
Dmitry Novik
18cea75f4f Add docs for EXPLAIN QUERY TREE 2022-11-21 17:07:04 +00:00
taofengliu
a529943d9f Merge remote-tracking branch 'upstream/master' into group_by_all 2022-11-19 21:11:23 +08:00
Camilo Sierra
bbf311ea94
We can not update the select query
An issue was opened as the select query was not updated after the alert of the view was executed, this is because the select gets ignored, the only way to change it is DROP/CREATE the view again.
So I want to add this information into our doc.
2022-11-18 12:31:33 +01:00
Camilo Sierra
d527ca5d9d
adding one link and note about disk usage
I have found a great page that explain more in deep the Projections, and with images explain how they work behind the scenes.
I have also added a note as it's true we do not mention that creating projections will increase the disk usage.
2022-11-17 15:41:47 +01:00
Nikolay Degterinsky
00554ecd00
Merge pull request #43271 from evillique/fix-docs-2
Fix docs
2022-11-16 15:12:28 +01:00
Smita Kulkarni
c84a50e77c Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-11-16 12:40:04 +01:00
Alexey Milovidov
1ec21e5890
Merge branch 'master' into group_by_all 2022-11-16 06:14:04 +01:00
Nikolay Degterinsky
81971acf35 Fix docs 2022-11-16 02:40:51 +00:00
Dan Roscigno
b178a3711c
Merge branch 'master' into standardize-dictionary-categories 2022-11-15 16:18:18 -05:00
DanRoscigno
c60b98f576 updates from review 2022-11-15 16:17:43 -05:00
DanRoscigno
7e08798fa8 edits 2022-11-15 13:47:50 -05:00
Camilo Sierra
2a48fb344d
Added examples and extra info to projections
I have added two examples about how we can use projections
2022-11-15 19:22:46 +01:00
Dan Roscigno
b5a306c4db
Merge branch 'master' into standardize-dictionary-categories 2022-11-14 21:30:05 -05:00
Dan Roscigno
4b182e7b58
Update set-role.md 2022-11-14 12:17:31 -05:00
Smita Kulkarni
4dec8337f0 Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-11-11 19:04:35 +01:00
DanRoscigno
c822c8161f fix nav 2022-11-08 20:21:26 -05:00
DanRoscigno
45c9debeaf update links 2022-11-08 19:17:58 -05:00
DanRoscigno
d225366335 update links 2022-11-08 18:04:22 -05:00
DanRoscigno
090b153b1e a dir named index with index.md broke nav 2022-11-08 17:37:20 -05:00
taofengliu
eff3d121e9 Merge remote-tracking branch 'upstream/master' into group_by_all 2022-11-08 10:44:53 +08:00
alesapin
c88dcba36e
Merge pull request #42852 from SaltTan/patch-1
Docs. Add PARTITION clause  to CHECK TABLE
2022-11-07 22:49:33 +01:00
Alexander Tokmakov
c5edea19f3
Merge pull request #43004 from ClickHouse/devcrafter-restart-replica-patch
Simple fixes for restart replica description
2022-11-07 22:18:28 +03:00
Igor Nikonov
434c0f24f9
Update docs/en/sql-reference/statements/system.md
Co-authored-by: Alexander Tokmakov <tavplubix@clickhouse.com>
2022-11-07 19:40:59 +01:00
Vitaly Baranov
ab8feb5bff
Merge pull request #42782 from mdonkers/session-log-support-sslcertificate-auth
Add SSL_CERTIFICATE auth method to all places missing
2022-11-07 16:36:42 +01:00
DanRoscigno
34f90ff6ef update pages that refer to dictionaries 2022-11-07 09:26:50 -05:00
Igor Nikonov
e7fbe40b1c
Simple fixes for restart replica description 2022-11-07 14:30:52 +01:00
DanRoscigno
3dd5df4615 update examples 2022-11-02 16:58:07 -04:00
DanRoscigno
c8f9af1afa start renaming 2022-11-02 15:47:11 -04:00
taofengliu
e08c33ac85 Merge remote-tracking branch 'upstream/master' into group_by_all 2022-11-02 23:08:52 +08:00
Dan Roscigno
4c77987bf8
Update projection.md
Experiment with Algolia search
2022-11-02 10:41:55 -04:00
Habibullah Oladepo
ba34ad37d1
Fix minor typos in intersect statement documentation 2022-11-02 08:02:01 +01:00
taofengliu
c9576e3761 Merge remote-tracking branch 'upstream/master' into group_by_all 2022-11-02 10:33:27 +08:00
DanRoscigno
e5f9c65590 add to page title for search 2022-11-01 12:56:41 -04:00
SaltTan
3afc688751
Update docs/en/sql-reference/statements/check-table.md
Co-authored-by: Ilya Yatsishin <2159081+qoega@users.noreply.github.com>
2022-11-01 13:04:24 +00:00
SaltTan
97d361bce0
Update check-table.md 2022-11-01 10:02:04 +00:00
taofengliu
4862586417 fix docs 2022-11-01 16:27:34 +08:00
taofengliu
d0767cab1d GROUP BY ALL in Analyzer 2022-11-01 16:18:56 +08:00
taofengliu
5630bc4d44 Merge remote-tracking branch 'upstream/master' into group_by_all 2022-11-01 16:17:04 +08:00
Vitaly Baranov
9d46547daa
Merge branch 'master' into session-log-support-sslcertificate-auth 2022-11-01 08:32:09 +01:00
Smita Kulkarni
9aa06e48f6 Merge branch 'master' into 40907_Parameterized_views_as_table_functions 2022-10-31 15:46:52 +01:00
Nikolay Degterinsky
81a812c1ea
Merge pull request #42822 from ClickHouse/serxa-patch-3
Link to proper place in docs
2022-10-31 13:11:15 +01:00
Sergei Trifonov
e43ecf9ca0
Link to proper place in docs 2022-10-31 12:52:31 +01:00
Sergei Trifonov
b677e68c4e
Update column.md 2022-10-31 12:46:14 +01:00
Sergei Trifonov
9066e0c3da
Merge pull request #42760 from ClickHouse/serxa-patch-2
Fix anchor links
2022-10-31 12:38:48 +01:00
taofengliu
73a35f1bc4 Merge remote-tracking branch 'upstream/master' into group_by_all 2022-10-29 13:58:27 +08:00
Miel Donkers
fb1623a5f8 Add SSL_CERTIFICATE auth method to all places missing 2022-10-28 21:17:59 +02:00