2017-01-16 19:24 GMT+01:00 Peter Geoghegan <pg@heroku.com>:
On Mon, Jan 16, 2017 at 3:48 AM, Michael Paquier <michael.paquier@gmail.com> wrote: > Indeed. It crashes for me immediately by adding an ORDER BY: > select count(distinct t) from seq_tab order by 1;
The problem was that one particular call to the macro RELEASE_SLAB_SLOT() happened to lack a test-for-NULL-argument needed by pass-by-value datum cases. The other two RELEASE_SLAB_SLOT() calls already have such a check.