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-rw-r--r--src/backend/executor/nodeMergejoin.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/executor/nodeMergejoin.c b/src/backend/executor/nodeMergejoin.c
index 208c0fb76ac..7d27123cf05 100644
--- a/src/backend/executor/nodeMergejoin.c
+++ b/src/backend/executor/nodeMergejoin.c
@@ -170,13 +170,13 @@ typedef enum
* the two expressions from the original clause.
*
* In addition to the expressions themselves, the planner passes the btree
- * opfamily OID, btree strategy number (BTLessStrategyNumber or
+ * opfamily OID, collation OID, btree strategy number (BTLessStrategyNumber or
* BTGreaterStrategyNumber), and nulls-first flag that identify the intended
* sort ordering for each merge key. The mergejoinable operator is an
- * equality operator in this opfamily, and the two inputs are guaranteed to be
+ * equality operator in the opfamily, and the two inputs are guaranteed to be
* ordered in either increasing or decreasing (respectively) order according
- * to this opfamily, with nulls at the indicated end of the range. This
- * allows us to obtain the needed comparison function from the opfamily.
+ * to the opfamily and collation, with nulls at the indicated end of the range.
+ * This allows us to obtain the needed comparison function from the opfamily.
*/
static MergeJoinClause
MJExamineQuals(List *mergeclauses,