MERGE

description

Syntax

AGGREGATE_FUNCTION_MERGE(agg_state) The aggregated intermediate results are aggregated and calculated to obtain the actual result. The type of the result is consistent with AGGREGATE_FUNCTION.

example

mysql [test]>select avg_merge(avg_state(1)) from d_table;
+-------------------------+
| avg_merge(avg_state(1)) |
+-------------------------+
|                       1 |
+-------------------------+

keywords

AGG_STATE, MERGE