Ok, I'm looking at the direction of ExecutorStart/End hooks...
Tom Lane <tgl@sss.pgh.pa.us> wrote:
> This would likely require adding a struct Instrumentation * field to
> QueryDesc in which to track the total ExecutorRun timing
I think instr_time is enough here,
but why do you think Instrumentation is needed?
There might be another approach to have a stopwatch stack in
the contrib module instead of the core. I think it is cleaner
because it works even if multiple modules use the stopwatch
at the same time. Am I missing something?
Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center