git.postgresql.org Git - postgresql.git/commitdiff

git projects / postgresql.git / commitdiff

author Simon Riggs <simon@2ndQuadrant.com>

Fri, 3 Mar 2017 13:48:25 +0000 (19:18 +0530)

committer Simon Riggs <simon@2ndQuadrant.com>

Fri, 3 Mar 2017 13:48:25 +0000 (19:18 +0530)

Allow VACUUM and Autovacuum to report the oldestxmin value they
used while cleaning tables, helping to make better sense out of
the other statistics we report in various cases.

src/backend/commands/vacuumlazy.c patch | blob | blame | history

diff --git a/src/backend/commands/vacuumlazy.c b/src/backend/commands/vacuumlazy.c

index 005440eb39279ea6ee1e5da953a0306d34bea45c..5d47f16ee4ad8c787f027dd58b398e0996ca6a40 100644 (file)

--- a/src/backend/commands/vacuumlazy.c

+++ b/src/backend/commands/vacuumlazy.c

@@ -380,10 +380,11 @@ lazy_vacuum_rel(Relation onerel, int options, VacuumParams *params,

vacrelstats->pinskipped_pages,

vacrelstats->frozenskipped_pages);

appendStringInfo(&buf,

- _("tuples: %.0f removed, %.0f remain, %.0f are dead but not yet removable\n"),

+ _("tuples: %.0f removed, %.0f remain, %.0f are dead but not yet removable, oldest xmin: %u\n"),

vacrelstats->tuples_deleted,

vacrelstats->new_rel_tuples,

- vacrelstats->new_dead_tuples);

+ vacrelstats->new_dead_tuples,

+ OldestXmin);

appendStringInfo(&buf,

_("buffer usage: %d hits, %d misses, %d dirtied\n"),

VacuumPageHit,

@@ -1329,8 +1330,8 @@ lazy_scan_heap(Relation onerel, int options, LVRelStats *vacrelstats,

initStringInfo(&buf);

appendStringInfo(&buf,

- _("%.0f dead row versions cannot be removed yet.\n"),

- nkeep);

+ _("%.0f dead row versions cannot be removed yet, oldest xmin: %u\n"),

+ nkeep, OldestXmin);

appendStringInfo(&buf, _("There were %.0f unused item pointers.\n"),

nunused);

appendStringInfo(&buf, ngettext("Skipped %u page due to buffer pins.\n",

This is the main PostgreSQL git repository.

RSS Atom