"tsunakawa.ta...@fujitsu.com" <tsunakawa.ta...@fujitsu.com> writes:
> From: Tom Lane <t...@sss.pgh.pa.us>
>> No.  You'd have to be superuser anyway to do that, and we're not in the
>> habit of trying to put training wheels on superusers.

> Understood.  However, we may add the parallel safety member in 
> fmgr_builtins[] in another thread for parallel INSERT SELECT.  I'd appreciate 
> your comment on this if you see any concern.

[ raised eyebrow... ]  I find it very hard to understand why that would
be necessary, or even a good idea.  Not least because there's no spare
room there; you'd have to incur a substantial enlargement of the
array to add another flag.  But also, that would indeed lock down
the value of the parallel-safety flag, and that seems like a fairly
bad idea.

                        regards, tom lane


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