Alexander Lakhin <exclus...@gmail.com> 于2024年10月24日周四 22:00写道：
> Hello Alvaro, > > 22.10.2024 17:32, Alvaro Herrera wrote: > > Yeah. I pushed these patches finally, thanks! > > Please look at a new anomaly introduced with 53af9491a. When running the > following script: > CREATE TABLE t (a int, b int, PRIMARY KEY (a, b)); > CREATE TABLE pt (a int, b int, FOREIGN KEY (a, b) REFERENCES t(a, b)) > PARTITION BY LIST (a); > > CREATE TABLE tp1 (x int, a int, b int); > ALTER TABLE tp1 DROP COLUMN x; > > ALTER TABLE pt ATTACH PARTITION tp1 FOR VALUES IN (1); > > ALTER TABLE pt DETACH PARTITION tp1; > > I get a memory access error detected by Valgrind: > 2024-10-24 12:05:04.645 UTC [1079077] LOG: statement: ALTER TABLE pt > DETACH PARTITION tp1; > ==00:00:00:07.887 1079077== Invalid read of size 2 > ==00:00:00:07.887 1079077== at 0x4A61DD: DetachPartitionFinalize > (tablecmds.c:19545) > ==00:00:00:07.887 1079077== by 0x4A5C11: ATExecDetachPartition > (tablecmds.c:19386) > ==00:00:00:07.887 1079077== by 0x48561E: ATExecCmd (tablecmds.c:5540) > ==00:00:00:07.887 1079077== by 0x4845DE: ATRewriteCatalogs > (tablecmds.c:5203) > ==00:00:00:07.887 1079077== by 0x4838EC: ATController (tablecmds.c:4758) > ==00:00:00:07.887 1079077== by 0x4834F1: AlterTable (tablecmds.c:4404) > ==00:00:00:07.887 1079077== by 0x7D6D52: ProcessUtilitySlow > (utility.c:1318) > ==00:00:00:07.887 1079077== by 0x7D65F7: standard_ProcessUtility > (utility.c:1067) > ==00:00:00:07.887 1079077== by 0x7D54F7: ProcessUtility (utility.c:523) > ==00:00:00:07.887 1079077== by 0x7D3D70: PortalRunUtility > (pquery.c:1158) > ==00:00:00:07.887 1079077== by 0x7D3FE7: PortalRunMulti (pquery.c:1316) > ==00:00:00:07.887 1079077== by 0x7D3431: PortalRun (pquery.c:791) > > Reproduced on REL_15_STABLE .. master. > Sorry, I can't reproduce this leak on master. -- Thanks, Tender Wang
