Re: [BUGS] Alter Table Bug
От | Bruce Momjian |
---|---|
Тема | Re: [BUGS] Alter Table Bug |
Дата | |
Msg-id | 199905021709.NAA05577@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Alter Table Bug (Sezai Yilmaz <sezaiy@ata.cs.hun.edu.tr>) |
Список | pgsql-bugs |
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 maillist@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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