Hi,

On 2018-10-01 00:32:18 -0700, Lukas Fittl wrote:
> On Tue, Sep 25, 2018 at 1:17 PM, Andres Freund <and...@anarazel.de> wrote:
> >
> > I've pushed the change without that bit - it's just a few additional
> > lines if we want to change that.
> >
> 
> It seems that since this commit, JIT statistics are now only being printed
> for parallel query plans. This is due to ExplainPrintJIT being called
> before ExecutorEnd, so in a non-parallel query,
> queryDesc->estate->es_jit_combined_instr will never get set.

Ugh.


> Attached a patch that instead introduces a new ExplainPrintJITSummary
> method that summarizes the statistics before they get printed.

Yea, I had something like that, and somehow concluded that it wasn't
needed, and moved it to the wrong place :/.


> I've also removed an (I believe) unnecessary "if (estate->es_instrument)"
> check that prevented EXPLAIN without ANALYZE from showing whether JIT would
> be used or not.
> 
> In addition this also updates a missed section in the documentation with
> the new stats output format.

Thanks a lot for the patch!  I've pushed it with some mild changes
(renamed es_jit_combined_stats to worker_stats; changed
ExplainPrintJITSummary to not look at es_jit, but es_jit_flags as
theoretically es_jit might not be allocated; very minor comment
changes).


- Andres

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