This is fixed in the current tree. Do a vacuum analyze on the table,
and it will be ok.
>
> Your name : Sezai YILMAZ
> Your email address : sezaiy@hacettepe.edu.tr
>
>
> System Configuration
> ---------------------
> Architecture (example: Intel Pentium) : intel Pentium II 350Mhz
>
> Operating System (example: Linux 2.0.26 ELF) : Linux 2.0.36 ELF
>
> PostgreSQL version (example: PostgreSQL-6.4.2): PostgreSQL-6.4.2
>
> Compiler used (example: gcc 2.8.0) : gcc 2.7.2.3
>
>
> Please enter a FULL description of your problem:
> ------------------------------------------------
>
> I modified a table of a postgres database by using SQL command alter
> table. My modification only consists of adding a new column which
> type is char(20) to the existing table. After that, I began to update
> that column by inserting string values to whole column:
>
> update table1 set new_column='something';
>
> After that I tried to select all records whose new_column field is set to
> 'something'.
>
> select * from table1 where new_column='something';
>
> And the error message produced by the postgres follows:
>
> ERROR: RestrictionClauseSelectivity: bad value 2.456940
>
> When I backup the database and drop and create the table1 with the
> 'new_column' there is no problem with selecting the records which match to
> the search criteria.
>
> FYI
>
> Sezai YILMAZ
> User Support Group,
> Computer Center,
> Hacettepe University
>
> Voice: +90 312 2976200 - +90 312 2352500/1209
> Fax : +90 312 2992088
>
>
>
>
>
>
--
Bruce Momjian | http://www.op.net/~candle
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