Fix partition_locking ICG test
@@ -448,7 +448,6 @@ delete from partlockt where i = 4;
select * from locktest_master where coalesce not like 'gp_%' and coalesce not like 'pg_%';
coalesce | mode | locktype | node
-------------------------+------------------+----------+--------
- partlockt | AccessShareLock | relation | master
partlockt | ExclusiveLock | relation | master
partlockt_1_prt_1 | AccessShareLock | relation | master
partlockt_1_prt_2 | AccessShareLock | relation | master
@@ -461,7 +460,7 @@ select * from locktest_master where coalesce not like 'gp_%' and coalesce not li
partlockt_1_prt_7 | AccessShareLock | relation | master
partlockt_1_prt_8 | AccessShareLock | relation | master
partlockt_1_prt_9 | AccessShareLock | relation | master
-(13 rows)
+(12 rows)
-- start_ignore
-- GPDB_12_MERGE_FIXME Revisit this post merge and see if we have a chance to unlock the root table
