| From: | Daniel Westermann <daniel(dot)westermann(at)dbi-services(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Josh Berkus <josh(at)berkus(dot)org>, PostgreSQL Advocacy <pgsql-advocacy(at)postgresql(dot)org> |
| Subject: | Re: Correlated columns & firsts |
| Date: | 2017-07-26 17:52:59 |
| Message-ID: | 1870312297.1201552.1501091579166.JavaMail.zimbra@dbi-services.com |
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| Thread: | |
| Lists: | pgsql-advocacy |
>A quick search led me to
>https://dba.stackexchange.com/questions/84747/statistics-are-multicolumn-histograms-possible
>which contains a pointer to
>https://blogs.msdn.microsoft.com/ianjo/2005/11/10/create-multi-column-statistics/
>
>then you can see the MS docs at
>https://docs.microsoft.com/en-us/sql/t-sql/statements/create-statistics-transact-sql
>https://docs.microsoft.com/en-us/sql/relational-databases/statistics/statistics
For Oracle:
https://blogs.oracle.com/optimizer/extended-statistics
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