ClickHouse/src/Interpreters/ClusterProxy
Azat Khuzhin c4b6342853
Improvements for parallel_distributed_insert_select (and related) (#34728)
* Add a warning if parallel_distributed_insert_select was ignored

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Respect max_distributed_depth for parallel_distributed_insert_select

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Print warning for non applied parallel_distributed_insert_select only for initial query

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Remove Cluster::getHashOfAddresses()

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Forbid parallel_distributed_insert_select for remote()/cluster() with different addresses

Before it uses empty cluster name (getClusterName()) which is not
correct, compare all addresses instead.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Fix max_distributed_depth check

max_distributed_depth=1 must mean not more then one distributed query,
not two, since max_distributed_depth=0 means no limit, and
distribute_depth is 0 for the first query.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Fix INSERT INTO remote()/cluster() with parallel_distributed_insert_select

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Add a test for parallel_distributed_insert_select with cluster()/remote()

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Return <remote> instead of empty cluster name in Distributed engine

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>

* Make user with sharding_key and w/o in remote()/cluster() identical

Before with sharding_key the user was "default", while w/o it it was
empty.

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
2022-03-08 15:24:39 +01:00
..
executeQuery.cpp Improvements for parallel_distributed_insert_select (and related) (#34728) 2022-03-08 15:24:39 +01:00
executeQuery.h Unambiguous formatting of distributed queries 2021-12-10 00:55:14 +03:00
IStreamFactory.h Parallel reading from replicas (#29279) 2021-12-09 13:39:28 +03:00
SelectStreamFactory.cpp Remove leftovers of old _shard_num via identifier implementation 2022-01-10 21:21:24 +03:00
SelectStreamFactory.h Remove leftovers of old _shard_num via identifier implementation 2022-01-10 21:21:24 +03:00