diff options
Diffstat (limited to 'src/include/parser/parse_node.h')
| -rw-r--r-- | src/include/parser/parse_node.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/include/parser/parse_node.h b/src/include/parser/parse_node.h index cf9c7590258..962ebf65de1 100644 --- a/src/include/parser/parse_node.h +++ b/src/include/parser/parse_node.h @@ -246,8 +246,11 @@ struct ParseState * visible for qualified references) but it does hide their columns * (unqualified references to the columns refer to the JOIN, not the member * tables, so we must not complain that such a reference is ambiguous). - * Various special RTEs such as NEW/OLD for rules may also appear with only - * one flag set. + * Conversely, a subquery without an alias does not hide the columns selected + * by the subquery, but it does hide the auto-generated relation name (so the + * subquery columns are visible for unqualified references only). Various + * special RTEs such as NEW/OLD for rules may also appear with only one flag + * set. * * While processing the FROM clause, namespace items may appear with * p_lateral_only set, meaning they are visible only to LATERAL |