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pgsql: Fix Coverity issue reported in commit a850be2fe.
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* pgsql: Fix Coverity issue reported in commit a850be2fe.
@ 2025-09-09 03:28  Amit Kapila <akapila@postgresql.org>
  0 siblings, 0 replies; 2+ messages in thread

From: Amit Kapila @ 2025-09-09 03:28 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix Coverity issue reported in commit a850be2fe.

Address a potential SIGSEGV that may occur when the tablesync worker
attempts to locate a deleted row while applying changes. This situation
arises during conflict detection for update-deleted scenarios.

To prevent this crash, ensure that the operation is errored out early if
the leader apply worker is unavailable. Since the leader worker maintains
the necessary conflict detection metadata, proceeding without it serves no
purpose and risks reporting incorrect conflict type.

In the passing, improve a nearby comment.

Reported by Tom Lane as per Coverity
Author: shveta malik <shveta.malik@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://postgr.es/m/334468.1757280992@sss.pgh.pa.us

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/5ac3c1ac22cb325844d0bee37f79f2c11931b32e

Modified Files
--------------
src/backend/replication/logical/worker.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)



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* pgsql: Fix Coverity issue reported in commit 2273fa32bce.
@ 2025-10-19 00:34  Tatsuo Ishii <ishii@postgresql.org>
  0 siblings, 0 replies; 2+ messages in thread

From: Tatsuo Ishii @ 2025-10-19 00:34 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix Coverity issue reported in commit 2273fa32bce.

Coverity complains that the return value from gettuple_eval_partition
(stored in variable "datum") in a do..while loop in
WinGetFuncArgInPartition is overwritten when exiting the while
loop. This commit tries to fix the issue by changing the
gettuple_eval_partition call to:

(void) gettuple_eval_partition()

explicitly stating that we discard the return value. We are just
interested in whether we are inside or outside of partition, NULL or
NOT NULL here.

Also enhance some comments for easier code reading.

Reported-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/aPCOabSE4VfJLaky%40paquier.xyz

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/dd766a441d69d16d1c8ab0d3a41a10649702d202

Modified Files
--------------
src/backend/executor/nodeWindowAgg.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)



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2025-09-09 03:28 pgsql: Fix Coverity issue reported in commit a850be2fe. Amit Kapila <akapila@postgresql.org>
2025-10-19 00:34 pgsql: Fix Coverity issue reported in commit 2273fa32bce. Tatsuo Ishii <ishii@postgresql.org>

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