| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: road.thepath no longer in pg_stats? |
| Date: | 2010-04-28 00:32:41 |
| Message-ID: | 29793.1272414761@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> I just noticed that the road.thepath column in the regression database
> is no longer in pg_stats for some reason after ANALYZE, so the example
> in section 14.2 in the docs (Statistics Used by the Planner) is now
> wrong.
It's an old example :-( ... a quick check shows no version since 7.3
generates stats for that column.
> but this is failing because of missing values for that column, as well
> as there being two rows for the column that is there (stainherint=f
> producing the other one)
Two rows are expected now, since that table has children --- there
should be one for inherited = t and one for inherited = f. Probably
wouldn't hurt to explain that explicitly here.
regards, tom lane
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