Re: BUG #19037: Planner fails on estimating array length with "no relation entry" error
Alexander Lakhin <exclusion@gmail.com>
From: Alexander Lakhin <exclusion@gmail.com>
To: Richard Guo <guofenglinux@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-bugs@lists.postgresql.org
Date: 2025-09-05T04:00:00Z
Lists: pgsql-bugs
Hello Tom and Richard, 03.09.2025 11:08, Richard Guo wrote: >> Yeah, "is there any other instance of this problem?" is the $64 >> question here. I was initially thinking v17 is sufficient, but >> the possibility that some extension might be vulnerable makes >> me lean to back-patching further. Your call ... > I've decided to backpatch this fix to pre-v17 branches: using a root > that lacks a valid simple_rel_array in a cost estimation function > seems like a pitfall waiting to happen. I've included an explanation > of this backpatch decision in the commit message and have pushed the > fix (the test case is not included in pre-v17 branches though). Thank you for fixing that anomaly! Best regards, Alexander