add doc

xiedeyantu · Feb 20, 2024 · 366359e · 366359e
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diff --git a/docs/en/operations/settings/settings.md b/docs/en/operations/settings/settings.md
@@ -3393,7 +3393,7 @@ ENGINE = Log
 
 ## default_temporary_table_engine {#default_temporary_table_engine}
 
-Same as [default_table_engine](#default_table_engine) but for temporary tables.
+Same as [default_table_engine](#default_table_engine) but for temporary tables. The default temporary table engine also can support `MergeTree` well.
 
 Default value: `Memory`.
 

diff --git a/tests/queries/0_stateless/02992_default_temporary_table_engine_supported_mergetree.sql b/tests/queries/0_stateless/02992_default_temporary_table_engine_supported_mergetree.sql
@@ -1,3 +1,4 @@
 CREATE TABLE 02992_test (a UInt8, b String, c Nullable(Float), date Date) Engine=MergeTree ORDER BY (a,b) PARTITION BY date;
+SET default_temporary_table_engine = 'MergeTree';
 CREATE TEMPORARY TABLE 02992_test2 AS 02992_test;
 SHOW CREATE TEMPORARY TABLE 02992_test2;