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141 Commits

Author SHA1 Message Date
alesapin
5c6c318737 Restrict mutations for engines which doesn't support them 2021-02-25 13:07:48 +03:00
Alexey Milovidov
905793a7e4 Disable excessive squashing of blocks for StorageMemory #13052 2021-02-07 04:57:17 +03:00
kreuzerkrieg
29a2ef3089 Add IStoragePolicy interface 2021-01-26 10:55:28 +02:00
Anton Popov
36ae0e4d35 Merge remote-tracking branch 'upstream/master' into HEAD 2021-01-11 13:51:12 +03:00
Azat Khuzhin
64cb6405ac Drop IStorage::supportsSettings() (replaced with StorageFeatures::supports_settings) 2021-01-08 14:36:26 +03:00
Anton Popov
57857dda63 Merge remote-tracking branch 'upstream/master' into HEAD 2020-12-23 15:16:43 +03:00
Nikita Mikhaylov
dae1e9ba31
Merge pull request #17857 from fastio/feature_hints_for_column_names 
hints for column names
 2020-12-23 04:55:41 +03:00
Anton Popov
1be39fddac fix subcolumns with some storages 2020-12-22 19:42:37 +03:00
alexey-milovidov
b81e067cd4
Update IStorage.h 2020-12-22 09:51:09 +03:00
fastio
e7bce63d3a hints for column names 2020-12-15 20:23:31 +08:00
Vasily Nemkov
70ea507dae OPTIMIZE DEDUPLICATE BY columns 
Extended OPTIMIZE ... DEDUPLICATE syntax to allow explicit (or implicit with asterisk/column transformers) list of columns to check for duplicates on.

Following syntax variants are now supported:

OPTIMIZE TABLE table DEDUPLICATE; -- the old one
OPTIMIZE TABLE table DEDUPLICATE BY *;
OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT colX;
OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT (colX, colY);
OPTIMIZE TABLE table DEDUPLICATE BY col1,col2,col3;
OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex');
OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT colX;
OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT (colX, colY);

Note that * behaves just like in SELECT: MATERIALIZED, and ALIAS columns are not used for expansion.
Also, it is an error to specify empty list of columns, or write an expression that results in an empty list of columns, or deduplicate by an ALIAS column.
Column transformers other than EXCEPT are not supported.
 2020-12-07 09:44:07 +03:00
nikitamikhaylov
72c7cd6693 replace Context& to Settings& 2020-11-25 16:47:32 +03:00
nikitamikhaylov
68bef22fda Merge branch 'master' of github.com:ClickHouse/ClickHouse into merging-sequential-consistency 2020-11-23 16:28:35 +03:00
tavplubix
e0dc004b95
Merge pull request #16885 from amosbird/dd 
Disable ATTACH/DETACH TABLE <DICTIONARY>
 2020-11-12 16:34:21 +03:00
Amos Bird
134786afd5
Disable ATTACH/DETACH TABLE <DICTIONARY> 2020-11-11 23:04:49 +08:00
Nikolai Kochetov
195c941c4e Merge branch 'master' into storage-read-query-plan 2020-11-10 15:02:22 +03:00
alesapin
72046313d4 Merge branch 'master' into nvartolomei-drop-part 2020-11-09 10:02:02 +03:00
Alexey Milovidov
5314185e25 Merge branch 'master' into azat-optimize_skip_unused_shards-optimization 2020-11-08 00:17:59 +03:00
Nikolai Kochetov
c10f733587 Merge branch 'master' into storage-read-query-plan 2020-11-06 15:43:46 +03:00
alexey-milovidov
ee3e289ec2
Merge pull request #15983 from ClickHouse/no_background_pool_no_more 
Replace BackgroundProcessingPool with SchedulePool task and ThreadPool.
 2020-11-05 21:38:22 +03:00
alesapin
20043e77bb Merge branch 'master' into nvartolomei-drop-part 2020-11-04 10:22:23 +03:00
Alexander Tokmakov
ac32809b6a fix #16482 2020-11-02 19:40:39 +03:00
alesapin
67d22b3e57 Merge branch 'master' into nvartolomei-drop-part 2020-11-02 19:09:09 +03:00
hchen9
feaab260d8 Fix conflict 2020-10-23 12:54:33 -07:00
alesapin
7a63b373f9 Merge branch 'blind_fix_of_read_in_order' into no_background_pool_no_more 2020-10-22 15:47:11 +03:00
Nikolai Kochetov
7fa045cff8 Merge branch 'master' into storage-read-query-plan 2020-10-22 13:31:10 +03:00
alesapin
7edbe4d276 Add some comments 2020-10-16 13:12:31 +03:00
alesapin
4c1f5cab13 Sleep less in background task 2020-10-15 19:10:22 +03:00
Amos Bird
867216103f
Extend trivial count optimization. 2020-10-08 18:08:17 +08:00
Azat Khuzhin
b838214a35 Pass non-const SelectQueryInfo (and drop mutable qualifiers) 2020-10-02 22:42:35 +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
hchen9
b3949db00f Merge branch 'master' of https://github.com/ClickHouse/ClickHouse into trivial_count_seq_consistency 2020-10-01 21:15:26 -07:00
Nikolai Kochetov
ec64def384 Use QueryPlan while reading from MergeTree. 2020-10-01 20:34:22 +03:00
hchen9
a5ac39b564 Pass Context parameter for IStorage.totalRows and IStorage.totalBytes 2020-09-30 16:47:42 -07:00
Nikolai Kochetov
2efde179e9 Merge branch 'master' into storage-read-query-plan 2020-09-30 15:23:46 +03:00
Alexander Tokmakov
34addcf61f add review suggestions 2020-09-26 22:18:28 +03:00
Nikolai Kochetov
dea90009e3 Fix build 2020-09-25 16:03:12 +03:00
Nikolai Kochetov
62ef40394a
Merge pull request #14856 from ClickHouse/query-plan-for-creating-sets 
Query plan for creating sets
 2020-09-22 16:19:20 +03:00
Nikolai Kochetov
50674a320f Refactor IStorage::read with query plan. 2020-09-18 14:39:07 +03:00
roman
b41421cb1c [settings]: introduce new query complexity settings for leaf-nodes 
The new setting should allow to control query complexity on leaf nodes
excluding the final merging stage on the root-node. For example, distributed
query that reads 1k rows from 5 shards will breach the `max_rows_to_read=5000`,
while effectively every shard reads only 1k rows. With setting `max_rows_to_read_leaf=1500`
this limit won't be reached and query will succeed since every shard reads
not more that ~1k rows.
 2020-09-17 10:37:05 +01:00
Nikolai Kochetov
13edfeea1f Fix build. 2020-09-15 20:23:49 +03:00
Nikolai Kochetov
6eac433c55 Review fixes. 2020-09-15 13:40:39 +03:00
Nikolai Kochetov
8c2aa7ce8c Added comment. 2020-09-15 12:22:45 +03:00
Nikolai Kochetov
bcfc83022a Return query plan from storage. 2020-09-14 17:13:58 +03:00
Nicolae Vartolomei
97d0b5ab23 Remove unused query argument 2020-09-08 10:56:10 +01:00
Nikolai Kochetov
9b67cd9faf Merge branch 'master' into refactor-pipes-3 2020-08-10 10:50:17 +03:00
Alexey Milovidov
edd89a8610 Fix half of typos 2020-08-08 03:47:03 +03:00
Nikolai Kochetov
09fbce1b1e Merge branch 'master' into refactor-pipes-3 2020-08-04 11:32:34 +03:00
Nikolai Kochetov
e411916bde Refactor Pipe [part 1]. 2020-08-03 14:33:11 +03:00
Vitaly Baranov
90602b869a Make SettingsChanges a class. 2020-07-31 19:11:27 +03:00