Improve the comments atop build_replindex_scan_key().

Author: zourenli <398740848@qq.com>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://postgr.es/m/tencent_C2DC8157CC05C8F5C36E12678A7864554809@qq.com

diff --git a/src/backend/executor/execReplication.c b/src/backend/executor/execReplication.c
index 8ad78366a863051c59f9044189e3acbfd530c651..173d2fe548d6016a40966058262ae7253ad76d55 100644 (file)
--- a/src/backend/executor/execReplication.c
+++ b/src/backend/executor/execReplication.c
@@ -46,8 +46,8 @@ static bool tuples_equal(TupleTableSlot *slot1, TupleTableSlot *slot2,
  *
  * Returns how many columns to use for the index scan.
  *
- * This is not generic routine, idxrel must be PK, RI, or an index that can be
- * used for REPLICA IDENTITY FULL table. See FindUsableIndexForReplicaIdentityFull()
+ * This is not a generic routine, idxrel must be PK, RI, or an index that can be
+ * used for a REPLICA IDENTITY FULL table. See FindUsableIndexForReplicaIdentityFull()
  * for details.
  *
  * By definition, replication identity of a rel meets all limitations associated