Make simpler-simple-expressions code cope with a Gather plan.
Commit 00418c612 expected that the plan generated for a simple-expression
query would always be a plain Result node. However, if force_parallel_mode
is on, the planner might stick a Gather atop that. Cope by looking through
the Gather. For safety, assert that the Gather's tlist is trivial.
Per buildfarm.
Discussion: https://postgr.es/m/23425.1502822098@sss.pgh.pa.us
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/b73f1b5c29e0ace5a281bc13ce09dea30e1b66de
Modified Files
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src/pl/plpgsql/src/pl_exec.c | 61 +++++++++++++++++++++++++++++++++-----------
1 file changed, 46 insertions(+), 15 deletions(-)