rewrite_* session settings

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These settings are available in system.settings and are autogenerated from source.

rewrite_count_distinct_if_with_count_distinct_implementation

Type

Bool

Default

0

Version history

Version	Default value	Comment
23.8	0	New setting to rewrite countDistinctIf with count_distinct_implementation configuration. It is disabled by default

Allows you to rewrite countDistcintIf with count_distinct_implementation setting.

Possible values:

true — Allow.
false — Disallow.

rewrite_in_to_join

Experimental feature

Type

Bool

Default

0

Version history

Version	Default value	Comment
25.10	0	New experimental setting

Rewrite expressions like ‘x IN subquery’ to JOIN. This might be useful for optimizing the whole query with join reordering.