I wrote: > Hm. I thought that this might be an old issue, but I'm not seeing the > crash in pre-v14 branches. That means it's some bug introduced in > the performance improvements I did a few months ago. Open item added.
git bisect says the trouble started with ea1268f6301cc7adce571cc9c5ebe8d9342a2ef4 is the first bad commit commit ea1268f6301cc7adce571cc9c5ebe8d9342a2ef4 Author: Tom Lane <t...@sss.pgh.pa.us> Date: Sat Feb 20 19:26:41 2021 -0500 Avoid generating extra subre tree nodes for capturing parentheses. I probably won't be able to dig deeper for a little while. regards, tom lane