Re: PostgreSQL 12, JIT defaults

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: PostgreSQL 12, JIT defaults
Date: 2018-10-08 15:03:56
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Andres Freund <andres(at)anarazel(dot)de> writes:
> Where is the jit=on coming from? Config from before it was turned off?

A look in guc.c shows that jit defaults to "on" whether or not JIT is
enabled at compile time. This seems, at best, rather user-unfriendly.
And it's not like our conventions for other compile-option-affected
GUCs, eg the SSL ones.

regards, tom lane

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