On Tue, Sep 25, 2018 at 1:17 PM, Andres Freund <andres@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.
Attached a patch that instead introduces a new ExplainPrintJITSummary method that summarizes the statistics before they get printed.
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.
