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-rw-r--r--src/backend/utils/cache/relcache.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index 4dd2e2b2c64..e9295a99f81 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -4327,9 +4327,10 @@ RelationGetFKeyList(Relation relation)
* it is the pg_class OID of a unique index on OID when the relation has one,
* and InvalidOid if there is no such index.
*
- * In exactly the same way, we update rd_replidindex, which is the pg_class
- * OID of an index to be used as the relation's replication identity index,
- * or InvalidOid if there is no such index.
+ * In exactly the same way, we update rd_pkindex, which is the OID of the
+ * relation's primary key index if any, else InvalidOid; and rd_replidindex,
+ * which is the pg_class OID of an index to be used as the relation's
+ * replication identity index, or InvalidOid if there is no such index.
*/
List *
RelationGetIndexList(Relation relation)
@@ -4797,7 +4798,7 @@ RelationGetIndexAttrBitmap(Relation relation, IndexAttrBitmapKind attrKind)
return NULL;
/*
- * Copy the rd_pkindex and rd_replidindex value computed by
+ * Copy the rd_pkindex and rd_replidindex values computed by
* RelationGetIndexList before proceeding. This is needed because a
* relcache flush could occur inside index_open below, resetting the
* fields managed by RelationGetIndexList. (The values we're computing