| From: | Michael Lewis <mlewis(at)entrata(dot)com> |
|---|---|
| To: | Peter Grman <peter(dot)grman(at)gmail(dot)com> |
| Cc: | PostgreSQL General <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Bad Estimate for multi tenant database queries |
| Date: | 2019-09-03 18:39:34 |
| Message-ID: | CAHOFxGoUNnvKAdnwjMmesLu+RkoMBtkDn+LiPrfewSYP40KCSw@mail.gmail.com |
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| Lists: | pgsql-general |
>
> CREATE STATISTICS MT_ReservationDepartureUtc (ndistinct) on "AccountCode",
> "DepartureUtc" from "Reservation"."Reservation";
> CREATE STATISTICS MT_ReservationArrivalUtc (ndistinct) on "AccountCode",
> "ArrivalUtc" from "Reservation"."Reservation";
> CREATE STATISTICS MT_ReservationNoShowFeeId (ndistinct) on "AccountCode",
> "NoShowFeeId" from "Reservation"."Reservation";
> CREATE STATISTICS MT_ReservationTimeSliceDefinitionId (ndistinct) on
> "AccountCode", "TimeSliceDefinitionId" from "Reservation"."Reservation";
>
> but that didn't help either
>
Did you try with 'dependencies' for the statistics_kind or only ndistinct?
What was default_statistics_target set to at the time you created the
extended statistics? I am not sure if that value is used, but I would
assume so.
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