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-rw-r--r--src/backend/access/heap/heapam.c6
-rw-r--r--src/backend/access/heap/heapam_visibility.c4
-rw-r--r--src/backend/utils/cache/inval.c2
3 files changed, 6 insertions, 6 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index b9862247fb0..4406a69ef26 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -1700,7 +1700,7 @@ heap_fetch(Relation relation,
tuple->t_tableOid = RelationGetRelid(relation);
/*
- * check time qualification of tuple, then release lock
+ * check tuple visibility, then release lock
*/
valid = HeapTupleSatisfiesVisibility(tuple, snapshot, buffer);
@@ -2020,8 +2020,8 @@ heap_get_latest_tid(Relation relation,
}
/*
- * Check time qualification of tuple; if visible, set it as the new
- * result candidate.
+ * Check tuple visibility; if visible, set it as the new result
+ * candidate.
*/
valid = HeapTupleSatisfiesVisibility(&tp, snapshot, buffer);
CheckForSerializableConflictOut(valid, relation, &tp, buffer, snapshot);
diff --git a/src/backend/access/heap/heapam_visibility.c b/src/backend/access/heap/heapam_visibility.c
index 86a99943eb6..6cb38f80c68 100644
--- a/src/backend/access/heap/heapam_visibility.c
+++ b/src/backend/access/heap/heapam_visibility.c
@@ -1453,8 +1453,8 @@ HeapTupleIsSurelyDead(HeapTuple htup, TransactionId OldestXmin)
* It's easy to check just infomask bits if the locker is not a multi; but
* otherwise we need to verify that the updating transaction has not aborted.
*
- * This function is here because it follows the same time qualification rules
- * laid out at the top of this file.
+ * This function is here because it follows the same visibility rules laid out
+ * at the top of this file.
*/
bool
HeapTupleHeaderIsOnlyLocked(HeapTupleHeader tuple)
diff --git a/src/backend/utils/cache/inval.c b/src/backend/utils/cache/inval.c
index 16903c25f45..ba28611d8cc 100644
--- a/src/backend/utils/cache/inval.c
+++ b/src/backend/utils/cache/inval.c
@@ -5,7 +5,7 @@
*
* This is subtle stuff, so pay attention:
*
- * When a tuple is updated or deleted, our standard time qualification rules
+ * When a tuple is updated or deleted, our standard visibility rules
* consider that it is *still valid* so long as we are in the same command,
* ie, until the next CommandCounterIncrement() or transaction commit.
* (See acces/heap/heapam_visibility.c, and note that system catalogs are