pgsql-server/src/backend/parser Tag: REL7_4_ST ...

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@svr1.postgresql.org 04/01/28 03:47:07

Modified files:
src/backend/parser: Tag: REL7_4_STABLE parse_agg.c

Log message:
Fix oversight in check_ungrouped_columns optimization that avoids
unnecessary checks for complex grouping expressions: we cannot check
whether the expressions are simple Vars until after we apply
flatten_join_alias_vars, because in the case of FULL JOIN that routine
can introduce non-Var expressions. Per example from Joel Knight.