Re: BUG #15815: Upgraded from 9.6.8 > 9.6.12 on AWS Aurora: SELECTs causing segmentation fault

PG Bug reporting form <noreply@postgresql.org> writes:
> AWS Aurora, stable on 9.6.6/8 for a year, updated to 9.6.12:

> LOG:  server process (PID 31294) was terminated by signal 11: Segmentation
> fault
> DETAIL:  Failed process was running:
> simplied >>> SELECT value FROM {table} WHERE lower(substring(value,1,1000))
>> = '{string}'
> LOG:  terminating any other active server processes

Huh.  Can you get a stack trace from that?

https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend

Also, could we see the definition of the table (psql \d would be
helpful)?

            regards, tom lane