Remove obsolete comment.

The lock level for adding a parent table is now ShareUpdateExclusiveLock;
see commit fbcf4b92aa64d4577bcf25925b055316b978744a.  This comment didn't
get updated to match, but it doesn't seem important to mention this detail
here, so rather than updating it now, just take it out.

diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index d3692754959770daa3b3db83a85626596ea4a417..fb39006e15f2fe8706df00cf3a4eaa02232e53d0 100644 (file)
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -2676,8 +2676,7 @@ AlterTableGetLockLevel(List *cmds)
                 * started before us will continue to see the old inheritance
                 * behaviour, while queries started after we commit will see
                 * new behaviour. No need to prevent reads or writes to the
-                * subtable while we hook it up though. In both cases the
-                * parent table is locked with AccessShareLock.
+                * subtable while we hook it up though.
                 */
            case AT_AddInherit:
            case AT_DropInherit: