On October 8, 2018 8:03:56 AM PDT, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>Andres Freund <andres@anarazel.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.
I thought Pavel was talking about 11 somehow...
> This seems, at best, rather user-unfriendly.
>And it's not like our conventions for other compile-option-affected
>GUCs, eg the SSL ones.
That was intentional, even though it perhaps should be better documented. That allows a distro to build and distribute
pgwithout llvm enabled, but then have the JIT package with all the dependencies separately. The pg yum packages do so.
Andres
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