Like toYear(PR #50062), the predicate with toYYYYMM could also be
optimized with its preimage. For example, we could transform the
predicate "toYYYYMM(c) = 202305" to "c >= '2023-05-01' AND c <=
'2023-05-31'", so that the invocation of toYYYYMM is avoided. The
similar transformation also applies to other comparisons.
This commit extends OptimizeDateFilterInPlaceVisitor by having it
recognize the toYYYYMM converter in the WHERE/PREWHERE clauses and
replace it with the above tranformed predicate in-place at the AST
level.
Differs from SelectQuery/InsertQuery that it could be > 1 (in case of
MATERIALIZED VIEW attached to the table), since each local SELECT/INSERT
query is accounted, not only initial.
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
* Add zookeeper name in endpoint id
When we migrate a replicated table from one zookeeper cluster to
another (the reason why we migration is that zookeeper's load is
too high), we will create a new table with the same zpath, but it
will fail and the old table will be in trouble.
Here is some infomation:
1.old table:
CREATE TABLE a1 (`id` UInt64)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/default/a1/{shard}', '{replica}')
ORDER BY (id);
2.new table:
CREATE TABLE a2 (`id` UInt64)
ENGINE = ReplicatedMergeTree('aux1:/clickhouse/tables/default/a1/{shard}', '{replica}')
ORDER BY (id);
3.error info:
<Error> executeQuery: Code: 220. DB::Exception: Duplicate interserver IO endpoint:
DataPartsExchange:/clickhouse/tables/default/a1/01/replicas/02.
(DUPLICATE_INTERSERVER_IO_ENDPOINT)
<Error> InterserverIOHTTPHandler: Code: 221. DB::Exception: No interserver IO endpoint
named DataPartsExchange:/clickhouse/tables/default/a1/01/replicas/02.
(NO_SUCH_INTERSERVER_IO_ENDPOINT)
* Revert "Add zookeeper name in endpoint id"
This reverts commit 9deb75b249619b7abdd38e3949ca8b3a76c9df8e.
* Add zookeeper name in endpoint id
When we migrate a replicated table from one zookeeper cluster to
another (the reason why we migration is that zookeeper's load is
too high), we will create a new table with the same zpath, but it
will fail and the old table will be in trouble.
* Fix incompatible with a new setting
* add a test, fix other issues
* Update 02442_auxiliary_zookeeper_endpoint_id.sql
* Update 02735_system_zookeeper_connection.reference
* Update 02735_system_zookeeper_connection.sql
* Update run.sh
* Remove the 'no-fasttest' tag
* Update 02442_auxiliary_zookeeper_endpoint_id.sql
---------
Co-authored-by: Alexander Tokmakov <tavplubix@clickhouse.com>
Co-authored-by: Alexander Tokmakov <tavplubix@gmail.com>
