Re: [SQL] RestrictionClauseSelectivity

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Frank Bax <fbax(at)execulink(dot)com>
Cc: pgsql-sql(at)postgreSQL(dot)org
Subject: Re: [SQL] RestrictionClauseSelectivity
Date: 1999-12-01 03:07:28
Message-ID: 199912010307.WAA00899@candle.pha.pa.us
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> DROP TABLE Players;
> CREATE TABLE Players ( ReqWhen DATETIME );
> ALTER TABLE Players ADD ReqCode TEXT;
> ALTER TABLE Players ADD ReqName TEXT;
> ALTER TABLE Players ADD ReqMail TEXT;
> ALTER TABLE Players ADD ReqPlay TEXT;
> ALTER TABLE Players ADD ReqFeed TEXT;
> ALTER TABLE Players ADD ReqPend CHAR;
> SELECT * FROM Players WHERE ReqCode = 'Test';
>
> Always produces the following error message:
>
> ERROR: RestrictionClauseSelectivity: bad value 2.451276
>
> I'm on 6.4.2 I think. Whatever was on RedHat 6.0 CD.
> How do I confirm version without the install files?

Known bug. Upgrade to 6.5.3, or VACUUM ANALYZE the table.

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