BUG #18878: PostgreSQL triggers Assertion Failure in Debug build
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From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: luy70@psu.edu
Date: 2025-04-04T19:15:14Z
Lists: pgsql-bugs
The following bug has been logged on the website: Bug reference: 18878 Logged by: Yu Liang Email address: luy70@psu.edu PostgreSQL version: 17.4 Operating system: Ubuntu 24.04 LTS ARM64 VM Description: In the debug build of PostgreSQL 17.4, compiled with `configure --enable-debug --prefix=$(pwd) --exec-prefix=$(pwd) --enable-cassert`, triggered Assertion Failure when executing the following statement: ```sql WITH RECURSIVE ta01 AS NOT MATERIALIZED ( WITH RECURSIVE any_cte_name AS MATERIALIZED ( TABLE ta01 ) DELETE FROM v00 RETURNING *, CASE WHEN FALSE THEN TRUE WHEN FALSE THEN TRUE ELSE TRUE END IDENT ) SELECT FROM JSON_ARRAY ( TABLE v00 ORDER BY CASE WHEN FALSE THEN TRUE END NULLS FIRST FOR READ ONLY) GROUP BY ROLLUP ( CASE WHEN FALSE NOT BETWEEN ASYMMETRIC CASE WHEN FALSE THEN TRUE END AND FALSE <> CASE WHEN EXISTS ( SELECT GROUP BY ALL ( ) FOR READ ONLY ) > CASE WHEN FALSE THEN TRUE END THEN FALSE END IS NULL THEN ARRAY ( ( TABLE ta01 ) ) ELSE CASE WHEN TRUE BETWEEN EXISTS ( SELECT GROUP BY ALL ( ) FOR READ ONLY ) AND TRUE IS NOT FALSE > EXISTS ( SELECT ALL GROUP BY ( ) FOR READ ONLY ) THEN TRUE END > CASE WHEN FALSE THEN TRUE END END ) FOR READ ONLY; ``` The triggered assertion is: "cte->cterecursive || !rte->self_reference". "src/backend/parser/parse_relation.c", Line: 2338.
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Fix parse_cte.c's failure to examine sub-WITHs in DML statements.
- 691836405f1e 18.0 landed
- ede29a1e400b 15.13 landed
- e276b58293d5 13.21 landed
- 754a3d82d79c 14.18 landed
- 5e7be43f4b8b 17.5 landed
- 1980ec2bc993 16.9 landed