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Fix thinko when ending progress report for a backend

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The logic ending progress reporting for a backend entry introduced by
b6fb647 causes callers of pgstat_progress_end_command() to do some extra
work when track_activities is enabled as the process fields are reset in
the backend entry even if no command were started for reporting.

This resets the fields only if a command is registered for progress
reporting, and only if track_activities is enabled.

Author: Masahiho Sawada
Discussion: https://postgr.es/m/CAD21AoCry_vJ0E-m5oxJXGL3pnos-xYGCzF95rK5Bbi3Uf-rpA@mail.gmail.com
Backpatch-through: 9.6
This commit is contained in:
Michael Paquier 2019-09-04 15:46:45 +09:00
parent 64eb426afc
commit 4c3e750ab4
1 changed files with 3 additions and 3 deletions
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6
src/backend/postmaster/pgstat.c
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@ -3272,10 +3272,10 @@ pgstat_progress_end_command(void)
{
volatile PgBackendStatus *beentry = MyBEEntry;
if (!beentry)
if (!beentry || !pgstat_track_activities)
return;
if (!pgstat_track_activities
&& beentry->st_progress_command == PROGRESS_COMMAND_INVALID)
if (beentry->st_progress_command == PROGRESS_COMMAND_INVALID)
return;
PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);