On Mon, 22 Jul 2019 at 00:44, Andreas Seltenreich <seltenre...@gmx.de> wrote:
> sqlsmith triggers an assertion in this commit (3373c7155350):
>
> TRAP: FailedAssertion("!(rel->reloptkind == RELOPT_BASEREL)", File:
> "equivclass.c", Line: 764)
Thanks for the report.
It looks like this is caused by the join removal code removing the
LEFT JOIN and leaving a dead rel in the eclasses ec_relids. The fix
is likely either to adjust the Assert to allow that or to add an if
test so that we only bother calling bms_add_member for base rels. I'm
not quite sure yet.
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
