Hello,
this seems very interesting and make me think about 2 other projets:
- https://github.com/trustly/pg_badplan
- https://github.com/ossc-db/pg_plan_advsr
As I understand all this, there are actually 3 steps:
- compare actual / estimated rows
- suggests some statistics gathering modification
- store optimised plans (or optimized stats) for reuse
I really like the "advisor Idea", permitting to identify where statistics
are wrong
and how to fix them with ANALYZE command.
Is there a chance that some futur Optimizer / statistics improvements
make thoses "statistics advices" enough to get good plans (without having to
store live stats
or optimized plan) ?
Thanks in advance
Regards
PAscal
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