On Sat, Aug 30, 2025 at 4:00 PM Alexander Lakhin <[email protected]> wrote: > > Hello Alexander, > > 24.08.2025 03:44, Alexander Korotkov wrote: > > Thank you for catching this. And thank you for the fix. I think it > worth separating fix and refactoring. This helps to understand what > exactly the fix is by looking at the patch. I also edited commit > message. I'm going to push this if no objections. > > > Please try the following script: > create table t1(i1 int primary key); > create table t2 (i2 int, check (i2 is not null)); > > set constraint_exclusion = 'on'; > > select 1 from t1 right join t2 on i1 = i2 where (select true); > > which triggers (starting from 5f6f951f8): > Core was generated by `postgres: law regression [local] SELECT > '. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x000058dd6a7b6014 in var_is_nonnullable (root=0x58dd78d505f8, > var=0x58dd78d75610, use_rel_info=false) at clauses.c:4242 > 4242 if (rte->inh && rte->relkind != > RELKIND_PARTITIONED_TABLE) > (gdb) bt > #0 0x000058dd6a7b6014 in var_is_nonnullable (root=0x58dd78d505f8, > var=0x58dd78d75610, use_rel_info=false) at clauses.c:4242 > #1 0x000058dd6a7b4f74 in eval_const_expressions_mutator > (node=0x58dd78d75590, context=0x7fff875a9f00) at clauses.c:3556 > #2 0x000058dd6a7b2935 in eval_const_expressions (root=0x58dd78d505f8, > node=0x58dd78d75590) at clauses.c:2272 > #3 0x000058dd6a7c857d in get_relation_constraints (root=0x58dd78d505f8, > relationObjectId=16385, rel=0x58dd78d738e0, include_noinherit=true, > include_notnull=true, include_partition=true) at plancat.c:1419 > #4 0x000058dd6a7c8fdb in relation_excluded_by_constraints > (root=0x58dd78d505f8, rel=0x58dd78d738e0, rte=0x58dd78c6b968) at > plancat.c:1808 > #5 0x000058dd6a73675e in set_rel_size (root=0x58dd78d505f8, > rel=0x58dd78d738e0, rti=2, rte=0x58dd78c6b968) at allpaths.c:364 > #6 0x000058dd6a73664c in set_base_rel_sizes (root=0x58dd78d505f8) at > allpaths.c:322 > #7 0x000058dd6a73631e in make_one_rel (root=0x58dd78d505f8, > joinlist=0x58dd78d74a90) at allpaths.c:183
Thank you for pointing. I'm investigating this now. ------ Regards, Alexander Korotkov Supabase
