Andreas Seltenreich schrob: > Teodor Sigaev schrob: > >> Thanks a lot, applied. Can you describe test suite? It may be useful >> for test more... > > Here's a shell script that triggers the bug when I revert the patch.
Just tried the script on HEAD, and it was triggering an assertion. I guess it is because we are still returning InvalidOffsetNumber in the trivial case (looks like a typo to me). I've attached a patch. regards, andreas Index: ginbtree.c =================================================================== RCS file: /projects/cvsroot/pgsql/src/backend/access/gin/ginbtree.c,v retrieving revision 1.2 diff -c -r1.2 ginbtree.c *** ginbtree.c 26 May 2006 08:01:17 -0000 1.2 --- ginbtree.c 26 May 2006 20:09:45 -0000 *************** *** 189,195 **** Assert( !GinPageIsLeaf(page) ); /* check trivial case */ ! if ( (root->off != btree->findChildPtr(btree, page, stack->blkno, InvalidOffsetNumber)) != InvalidBuffer ) { stack->parent = root; return; } --- 189,195 ---- Assert( !GinPageIsLeaf(page) ); /* check trivial case */ ! if ( (root->off = btree->findChildPtr(btree, page, stack->blkno, InvalidOffsetNumber)) != InvalidOffsetNumber ) { stack->parent = root; return; } ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match