Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit3483f43

Browse files
committed
Don't use SnapshotNow in get_actual_variable_range.
Instead, use the active snapshot. Per Tom Lane, this function ismost interested in knowing the range of tuples our scan will actuallysee.This is another step towards full removal of SnapshotNow.
1 parent1b09630 commit3483f43

File tree

1 file changed

+5
-4
lines changed

1 file changed

+5
-4
lines changed

‎src/backend/utils/adt/selfuncs.c

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -133,6 +133,7 @@
133133
#include"utils/pg_locale.h"
134134
#include"utils/rel.h"
135135
#include"utils/selfuncs.h"
136+
#include"utils/snapmgr.h"
136137
#include"utils/spccache.h"
137138
#include"utils/syscache.h"
138139
#include"utils/timestamp.h"
@@ -4989,8 +4990,8 @@ get_actual_variable_range(PlannerInfo *root, VariableStatData *vardata,
49894990
/* If min is requested ... */
49904991
if (min)
49914992
{
4992-
index_scan=index_beginscan(heapRel,indexRel,SnapshotNow,
4993-
1,0);
4993+
index_scan=index_beginscan(heapRel,indexRel,
4994+
GetActiveSnapshot(),1,0);
49944995
index_rescan(index_scan,scankeys,1,NULL,0);
49954996

49964997
/* Fetch first tuple in sortop's direction */
@@ -5021,8 +5022,8 @@ get_actual_variable_range(PlannerInfo *root, VariableStatData *vardata,
50215022
/* If max is requested, and we didn't find the index is empty */
50225023
if (max&&have_data)
50235024
{
5024-
index_scan=index_beginscan(heapRel,indexRel,SnapshotNow,
5025-
1,0);
5025+
index_scan=index_beginscan(heapRel,indexRel,
5026+
GetActiveSnapshot(),1,0);
50265027
index_rescan(index_scan,scankeys,1,NULL,0);
50275028

50285029
/* Fetch first tuple in reverse direction */

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp