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pgsql: Honor passed-in database OIDs in pgstat_database.c
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* pgsql: Honor passed-in database OIDs in pgstat_database.c
@ 2026-04-11 08:09 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 5+ messages in thread

From: Michael Paquier @ 2026-04-11 08:09 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Honor passed-in database OIDs in pgstat_database.c

Three routines in pgstat_database.c incorrectly ignore the database OID
provided by their caller, using MyDatabaseId instead:
- pgstat_report_connect()
- pgstat_report_disconnect()
- pgstat_reset_database_timestamp()

The first two functions, for connection and disconnection, each have a
single caller that already passes MyDatabaseId.  This was harmless,
still incorrect.

The timestamp reset function also has a single caller, but in this case
the issue has a real impact: it fails to reset the timestamp for the
shared-database entry (datid=0) when operating on shared objects.  This
situation can occur, for example, when resetting counters for shared
relations via pg_stat_reset_single_table_counters().

There is currently one test in the tree that checks the reset of a
shared relation, for pg_shdescription, we rely on it to check what is
stored in pg_stat_database.  As stats_reset may be NULL, two resets are
done to provide a baseline for comparison.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com>
Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com
Backpatch-through: 15

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/80156cee06b9d257251d72379ac43f9b88bd13e1

Modified Files
--------------
src/backend/utils/activity/pgstat_database.c |  6 +++---
src/test/regress/expected/stats.out          | 18 ++++++++++++++++++
src/test/regress/sql/stats.sql               |  8 ++++++++
3 files changed, 29 insertions(+), 3 deletions(-)



^ permalink  raw  reply  [nested|flat] 5+ messages in thread

* pgsql: Honor passed-in database OIDs in pgstat_database.c
@ 2026-04-11 08:09 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 5+ messages in thread

From: Michael Paquier @ 2026-04-11 08:09 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Honor passed-in database OIDs in pgstat_database.c

Three routines in pgstat_database.c incorrectly ignore the database OID
provided by their caller, using MyDatabaseId instead:
- pgstat_report_connect()
- pgstat_report_disconnect()
- pgstat_reset_database_timestamp()

The first two functions, for connection and disconnection, each have a
single caller that already passes MyDatabaseId.  This was harmless,
still incorrect.

The timestamp reset function also has a single caller, but in this case
the issue has a real impact: it fails to reset the timestamp for the
shared-database entry (datid=0) when operating on shared objects.  This
situation can occur, for example, when resetting counters for shared
relations via pg_stat_reset_single_table_counters().

There is currently one test in the tree that checks the reset of a
shared relation, for pg_shdescription, we rely on it to check what is
stored in pg_stat_database.  As stats_reset may be NULL, two resets are
done to provide a baseline for comparison.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com>
Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com
Backpatch-through: 15

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/b081c5b07309e5f95fec90eef5041bcc7a25a794

Modified Files
--------------
src/backend/utils/activity/pgstat_database.c |  6 +++---
src/test/regress/expected/stats.out          | 18 ++++++++++++++++++
src/test/regress/sql/stats.sql               |  8 ++++++++
3 files changed, 29 insertions(+), 3 deletions(-)



^ permalink  raw  reply  [nested|flat] 5+ messages in thread

* pgsql: Honor passed-in database OIDs in pgstat_database.c
@ 2026-04-11 08:09 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 5+ messages in thread

From: Michael Paquier @ 2026-04-11 08:09 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Honor passed-in database OIDs in pgstat_database.c

Three routines in pgstat_database.c incorrectly ignore the database OID
provided by their caller, using MyDatabaseId instead:
- pgstat_report_connect()
- pgstat_report_disconnect()
- pgstat_reset_database_timestamp()

The first two functions, for connection and disconnection, each have a
single caller that already passes MyDatabaseId.  This was harmless,
still incorrect.

The timestamp reset function also has a single caller, but in this case
the issue has a real impact: it fails to reset the timestamp for the
shared-database entry (datid=0) when operating on shared objects.  This
situation can occur, for example, when resetting counters for shared
relations via pg_stat_reset_single_table_counters().

There is currently one test in the tree that checks the reset of a
shared relation, for pg_shdescription, we rely on it to check what is
stored in pg_stat_database.  As stats_reset may be NULL, two resets are
done to provide a baseline for comparison.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com>
Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com
Backpatch-through: 15

Branch
------
REL_17_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/a4fefb3e0dc5451166ebef6adcc082a57ddba039

Modified Files
--------------
src/backend/utils/activity/pgstat_database.c |  6 +++---
src/test/regress/expected/stats.out          | 18 ++++++++++++++++++
src/test/regress/sql/stats.sql               |  8 ++++++++
3 files changed, 29 insertions(+), 3 deletions(-)



^ permalink  raw  reply  [nested|flat] 5+ messages in thread

* pgsql: Honor passed-in database OIDs in pgstat_database.c
@ 2026-04-11 08:09 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 5+ messages in thread

From: Michael Paquier @ 2026-04-11 08:09 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Honor passed-in database OIDs in pgstat_database.c

Three routines in pgstat_database.c incorrectly ignore the database OID
provided by their caller, using MyDatabaseId instead:
- pgstat_report_connect()
- pgstat_report_disconnect()
- pgstat_reset_database_timestamp()

The first two functions, for connection and disconnection, each have a
single caller that already passes MyDatabaseId.  This was harmless,
still incorrect.

The timestamp reset function also has a single caller, but in this case
the issue has a real impact: it fails to reset the timestamp for the
shared-database entry (datid=0) when operating on shared objects.  This
situation can occur, for example, when resetting counters for shared
relations via pg_stat_reset_single_table_counters().

There is currently one test in the tree that checks the reset of a
shared relation, for pg_shdescription, we rely on it to check what is
stored in pg_stat_database.  As stats_reset may be NULL, two resets are
done to provide a baseline for comparison.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com>
Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com
Backpatch-through: 15

Branch
------
REL_16_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/c7cdcbd3e6a72f858690ed7e69046cf2cd41fb19

Modified Files
--------------
src/backend/utils/activity/pgstat_database.c |  6 +++---
src/test/regress/expected/stats.out          | 18 ++++++++++++++++++
src/test/regress/sql/stats.sql               |  8 ++++++++
3 files changed, 29 insertions(+), 3 deletions(-)



^ permalink  raw  reply  [nested|flat] 5+ messages in thread

* pgsql: Honor passed-in database OIDs in pgstat_database.c
@ 2026-04-11 08:09 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 5+ messages in thread

From: Michael Paquier @ 2026-04-11 08:09 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Honor passed-in database OIDs in pgstat_database.c

Three routines in pgstat_database.c incorrectly ignore the database OID
provided by their caller, using MyDatabaseId instead:
- pgstat_report_connect()
- pgstat_report_disconnect()
- pgstat_reset_database_timestamp()

The first two functions, for connection and disconnection, each have a
single caller that already passes MyDatabaseId.  This was harmless,
still incorrect.

The timestamp reset function also has a single caller, but in this case
the issue has a real impact: it fails to reset the timestamp for the
shared-database entry (datid=0) when operating on shared objects.  This
situation can occur, for example, when resetting counters for shared
relations via pg_stat_reset_single_table_counters().

There is currently one test in the tree that checks the reset of a
shared relation, for pg_shdescription, we rely on it to check what is
stored in pg_stat_database.  As stats_reset may be NULL, two resets are
done to provide a baseline for comparison.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Dapeng Wang <wangdp20191008@gmail.com>
Discussion: https://postgr.es/m/ABBD5026-506F-4006-A569-28F72C188693@gmail.com
Backpatch-through: 15

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/c6d3f05851a94655a5e2194c03553824350a4782

Modified Files
--------------
src/backend/utils/activity/pgstat_database.c |  6 +++---
src/test/regress/expected/stats.out          | 18 ++++++++++++++++++
src/test/regress/sql/stats.sql               |  8 ++++++++
3 files changed, 29 insertions(+), 3 deletions(-)



^ permalink  raw  reply  [nested|flat] 5+ messages in thread


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