Re: BUG #16162: create index using gist_trgm_ops leads to panic

On 13/12/2019 02:16, Tomas Vondra wrote:
> On Thu, Dec 12, 2019 at 07:05:53PM -0500, Jeff Janes wrote:
>> On Thu, Dec 12, 2019 at 8:44 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> I wonder if this could be a recently-introduced bug?  I do not
>>> recall seeing complaints like this before v12.
>>
>> Looks like the culprit is:
>>
>> commit 9155580fd5fc2a0cbb23376dfca7cd21f59c2c7b
>> Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
>> Date:   Wed Apr 3 17:03:15 2019 +0300
>>
>>     Generate less WAL during GiST, GIN and SP-GiST index build.
>>
>> The commit before went 150 iterations with no failures, while this one
>> failed on the 15th iteration, then again on 4th.
> 
> Thanks for the bisect. I've planned to try reproducing this on 11, but
> this commit only in 12, so Tom is right it's a recent bug.

Thanks, I'll take a look...

- Heikki