postgresql/contrib/postgres_fdw
Etsuro Fujita edbcbe277d postgres_fdw: Fix cost estimation for aggregate pushdown.
In commit 7012b132d0, which added support for aggregate pushdown in
postgres_fdw, the expense of evaluating the final scan/join target
computed by make_group_input_target() was not accounted for at all in
costing aggregate pushdown paths with local statistics.  The right fix
for this would be to have a separate upper stage to adjust the final
scan/join relation (see comments for apply_scanjoin_target_to_paths());
but for now, fix by adding the tlist eval cost when costing aggregate
pushdown paths with local statistics.

Apply this to HEAD only to avoid destabilizing existing plan choices.

Author: Etsuro Fujita
Reviewed-By: Antonin Houska
Discussion: https://postgr.es/m/5C66A056.60007%40lab.ntt.co.jp
2019-05-09 18:39:23 +09:00
..
expected Avoid postgres_fdw crash for a targetlist entry that's just a Param. 2019-04-27 13:15:54 -04:00
sql Avoid postgres_fdw crash for a targetlist entry that's just a Param. 2019-04-27 13:15:54 -04:00
.gitignore Add postgres_fdw contrib module. 2013-02-21 05:27:16 -05:00
connection.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
deparse.c Avoid postgres_fdw crash for a targetlist entry that's just a Param. 2019-04-27 13:15:54 -04:00
Makefile Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-04-03 16:26:05 -04:00
option.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
postgres_fdw--1.0.sql Add postgres_fdw contrib module. 2013-02-21 05:27:16 -05:00
postgres_fdw.c postgres_fdw: Fix cost estimation for aggregate pushdown. 2019-05-09 18:39:23 +09:00
postgres_fdw.control Add postgres_fdw contrib module. 2013-02-21 05:27:16 -05:00
postgres_fdw.h Avoid postgres_fdw crash for a targetlist entry that's just a Param. 2019-04-27 13:15:54 -04:00
shippable.c Update copyright for 2019 2019-01-02 12:44:25 -05:00