Re: Errors "failed to construct the join relation" and "failed to build any 2-way joins"
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Will Leinweber <will@bitfission.com>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2019-12-13T06:26:11Z
Lists: pgsql-hackers
Will Leinweber <will@bitfission.com> writes:
> On 12.1, fresh initdb the following query gives me the error
> "ERROR: failed to construct the join relation"
I'm getting an assertion failure in an assert-enabled build, here:
(gdb) f 3
#3 0x00000000006f382a in create_lateral_join_info (root=0x2d380c8)
at initsplan.c:637
637 Assert(!bms_is_member(rti, lateral_relids));
Eyeing the plan produced by v11, I'm suspecting some oversight in
the RTE_RESULT changes (4be058fe9); but I haven't actually bisected.
Too tired to look closer right now.
regards, tom lane
Commits
-
Prevent overly-aggressive collapsing of joins to RTE_RESULT relations.
- d04e2553d49d 12.2 landed
- 6ea364e7e7d5 13.0 landed