Re: pgsql: Enable parallel SELECT for "INSERT INTO ... SELECT ...".

Amit Kapila <akapila(at)postgresql(dot)org> writes:
> Enable parallel SELECT for "INSERT INTO ... SELECT ...".

skink (valgrind) is unhappy:

creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ==4085668== VALGRINDERROR-BEGIN
==4085668== Conditional jump or move depends on uninitialised value(s)
==4085668== at 0x4AEB77: max_parallel_hazard_walker (clauses.c:700)
==4085668== by 0x445287: expression_tree_walker (nodeFuncs.c:2188)
==4085668== by 0x4AEBB8: max_parallel_hazard_walker (clauses.c:860)
==4085668== by 0x4B045E: is_parallel_safe (clauses.c:637)
==4085668== by 0x4985D0: grouping_planner (planner.c:2070)
==4085668== by 0x49AE4F: subquery_planner (planner.c:1024)
==4085668== by 0x49B4F5: standard_planner (planner.c:404)
==4085668== by 0x49BAD2: planner (planner.c:273)
==4085668== by 0x5818BE: pg_plan_query (postgres.c:809)
==4085668== by 0x581977: pg_plan_queries (postgres.c:900)
==4085668== by 0x581E70: exec_simple_query (postgres.c:1092)
==4085668== by 0x583F7A: PostgresMain (postgres.c:4327)
==4085668== Uninitialised value was created by a stack allocation
==4085668== at 0x4B0363: is_parallel_safe (clauses.c:599)
==4085668==
==4085668== VALGRINDERROR-END

There are a few other commits that skink hasn't seen before, but given
the apparent connection to parallel planning, none of the others look
like plausible candidates to explain this.

regards, tom lane