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176 Commits

Author SHA1 Message Date
Nikolai Kochetov
7ffbeac9df Add info about indexes to ReadFromMergeTree step. 2021-04-08 14:48:54 +03:00
Nikolai Kochetov
7c5a9133df Add index info to ReadFromStorageStep. 2021-04-08 11:19:04 +03:00
Nikolai Kochetov
9f39f5d52d Add more counters to MergeTreeDataSelectExecutor 2021-04-06 15:39:55 +03:00
Nikolai Kochetov
8fad179800 Fix some tests. 2021-03-30 18:14:20 +03:00
Nikolai Kochetov
88bfa6c9ba Add ReadFromMergeTree step. 2021-03-30 13:25:26 +03:00
Alexey Milovidov
2a8ac01cdb Rename as suggested by Kita 2021-03-28 22:24:28 +03:00
Alexey Milovidov
50f712e198 Integrate mmap cache to the infrastructure 2021-03-28 04:10:30 +03:00
feng lv
b7622868fc remove useless code 2021-03-25 11:10:41 +00:00
Nikolai Kochetov
a669f7d641 Merge branch 'master' into refactor-actions-dag 2021-03-05 18:21:14 +03:00
Nikolai Kochetov
9a39459888 Refactor ActionsDAG 2021-03-04 20:38:12 +03:00
Nikolai Kochetov
15921fbfcb Remove index by name from ActionsDAG 2021-03-03 23:01:07 +03:00
alesapin
c29d7c7f49 Shutup clang tidy 2021-03-02 19:13:36 +03:00
alesapin
9ebf1b4fad Get rid of separate minmax index fields 2021-03-02 13:33:54 +03:00
Azat Khuzhin
68f23b7087 Improve logging during MergeTree reading 
- Remove "Not using primary index on part {}" message (too noisy)
- Add number of total marks before filtering by primary key into the
  common message
- Make "Index {} has dropped {} / {} granules." not per-part, but
  per-query
 2021-02-13 18:08:55 +03:00
Nikolai Kochetov
d7fa440356
Merge branch 'master' into remove-adding-const-column-transform 2021-02-08 15:49:23 +03:00
alesapin
011109c82a
Merge pull request #17348 from xjewer/alex/CLICKHOUSE-606_deduplication_UUID 
CLICKHOUSE-606: query deduplication based on parts' UUID
 2021-02-05 22:47:34 +03:00
alesapin
7cbc135e72 More isolated code 2021-02-05 12:54:34 +03:00
Nikolai Kochetov
e3d6ffd9dc Remove AddingConstColumn step and transform. 2021-02-04 17:25:11 +03:00
Alexey Milovidov
dc2afc4795 Fix double whitespace #18383 2021-02-03 21:12:14 +03:00
Aleksei Semiglazov
921518db0a CLICKHOUSE-606: query deduplication based on parts' UUID 
* add the query data deduplication excluding duplicated parts in MergeTree family engines.

query deduplication is based on parts' UUID which should be enabled first with merge_tree setting
assign_part_uuids=1

allow_experimental_query_deduplication setting is to enable part deduplication, default ot false.

data part UUID is a mechanism of giving a data part a unique identifier.
Having UUID and deduplication mechanism provides a potential of moving parts
between shards preserving data consistency on a read path:
duplicated UUIDs will cause root executor to retry query against on of the replica explicitly
asking to exclude encountered duplicated fingerprints during a distributed query execution.

NOTE: this implementation don't provide any knobs to lock part and hence its UUID. Any mutations/merge will
update part's UUID.

* add _part_uuid virtual column, allowing to use UUIDs in predicates.

Signed-off-by: Aleksei Semiglazov <asemiglazov@cloudflare.com>

address comments
 2021-02-02 16:53:39 +00:00
Pavel Kruglov
a3f1b825cc Fix build 2021-02-01 21:17:12 +03:00
alexey-milovidov
6b2f0435c8
Merge pull request #19375 from Avogar/select-final 
Improve do_not_merge_across_partitions_select_final optimization.
 2021-02-01 20:31:08 +03:00
Nikolai Kochetov
19e4a33f9d
Merge pull request #19544 from amosbird/limitconcurrency 
Per MergeTree table query limit
 2021-02-01 16:09:12 +03:00
Pavel Kruglov
78371e15dc Update test, reduce num_threads_for_lonely_parts if data is small 2021-01-29 21:00:08 +03:00
Pavel Kruglov
71f4acd48b Use one pool for lonely parts, update tests 2021-01-29 17:30:14 +03:00
Pavel Kruglov
a437ee4e31 Merge branch 'master' of github.com:ClickHouse/ClickHouse into select-final 2021-01-29 14:25:47 +03:00
Amos Bird
66fe97d8bd
Per MergeTree table query limit 2021-01-26 14:03:31 +08:00
Alexey Milovidov
8dfa933028 Amend 2021-01-25 23:48:10 +03:00
Alexey Milovidov
9ee5c1535e Allow to disable checksums on read 2021-01-25 23:29:04 +03:00
Azat Khuzhin
1c364b6ee3 Fix SIGSEGV with merge_tree_min_rows_for_concurrent_read/merge_tree_min_bytes_for_concurrent_read=0/UINT64_MAX 
In case of 0 or too huge value it will try to read not existing marks
and got:

    Logical error: 'Trying to get non existing mark 11936128518282651045, while size is 2'.
 2021-01-24 14:39:57 +03:00
Pavel Kruglov
900580af02 Add parallel select when there is one part with level>0 in select final 2021-01-21 20:34:50 +03:00
Amos Bird
a3d19fa64d
Correctly override default settings remotely 2021-01-08 12:28:09 +08:00
Amos Bird
0260953a47
better 2021-01-06 17:18:48 +08:00
Amos Bird
a157a5b3b3
add max_partitions_to_read setting 2021-01-04 12:40:48 +08:00
Nikolai Kochetov
46f70dd0de Merge branch 'master' into actions-dag-f14 2020-11-12 11:54:44 +03:00
tavplubix
058aa8f85e
Merge pull request #16824 from ClickHouse/replace_stringstreams_with_buffers 
Replace std::*stringstreams with DB::*Buffers
 2020-11-12 01:11:44 +03:00
Nikolai Kochetov
1846bb3cac Merge branch 'master' into actions-dag-f14 2020-11-11 13:08:57 +03:00
Alexander Tokmakov
b94cc5c4e5 remove more stringstreams 2020-11-10 21:22:26 +03:00
Nikolai Kochetov
c6575c9032 Update ExpressionActions constructur 2020-11-10 19:27:55 +03:00
Nikolai Kochetov
07fe3a6347 Fix build. 2020-11-10 15:14:05 +03:00
Nikolai Kochetov
195c941c4e Merge branch 'master' into storage-read-query-plan 2020-11-10 15:02:22 +03:00
Nikolai Kochetov
363c1e05c0 Try fix tests. 2020-11-10 12:35:05 +03:00
Nikolai Kochetov
6717c7a0af Merge branch 'master' into actions-dag-f14 2020-11-09 14:57:48 +03:00
alexey-milovidov
0e6ae4aff7
Merge pull request #16253 from amosbird/pf 
Prune partition in verbatim way.
 2020-11-08 18:58:02 +03:00
Alexey Milovidov
fd84d16387 Fix "server failed to start" error 2020-11-07 03:14:53 +03:00
alexey-milovidov
7fb53b205c
Merge pull request #16637 from azat/mt-read_in_order-spread-fix 
Fix spreading for ReadInOrderOptimizer with expression in ORDER BY
 2020-11-06 17:36:03 +03:00
Nikolai Kochetov
c10f733587 Merge branch 'master' into storage-read-query-plan 2020-11-06 15:43:46 +03:00
Nikolai Kochetov
9aeb757da4 Merge branch 'master' into actions-dag-f14 2020-11-06 15:04:20 +03:00
Amos Bird
2b0085c106
Pruning is different from counting 2020-11-06 19:58:03 +08:00
Amos Bird
30bf5e6d26
Prune partition in verbatim way. 2020-11-06 09:56:13 +08:00