From ebcc7bf949bae614cccc6b86e3ef9b926a6e2f99 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Mon, 21 Jan 2019 17:03:15 -0800 Subject: Rephrase references to "time qualification". Now that the relevant code has, for other reasons, moved out of tqual.[ch], it seems time to refer to visiblity rather than time qualification. Author: Andres Freund Discussion: https://postgr.es/m/20180703070645.wchpu5muyto5n647@alap3.anarazel.de --- src/backend/access/heap/heapam.c | 6 +++--- src/backend/access/heap/heapam_visibility.c | 4 ++-- src/backend/utils/cache/inval.c | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'src') 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 -- cgit v1.2.3