clarify which engines support final

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DanRoscigno 2022-12-21 08:55:38 -05:00
parent 6cc8a7e3e3
commit 4981d4a013

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@ -19,6 +19,8 @@ Subquery is another `SELECT` query that may be specified in parenthesis inside `
## FINAL Modifier
The FINAL modifier can be used only for a SELECT from ReplacingMergeTree, SummingMergeTree, AggregatingMergeTree, CollapsingMergeTree and VersionedCollapsingMergeTree tables.
When `FINAL` is specified, ClickHouse fully merges the data before returning the result and thus performs all data transformations that happen during merges for the given table engine.
It is applicable when selecting data from tables that use the [MergeTree](../../../engines/table-engines/mergetree-family/mergetree.md)-engine family. Also supported for: