Re: beginner problems with count(*)

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От A. Kretschmer
Тема Re: beginner problems with count(*)
Дата
Msg-id 20100408092707.GC29013@a-kretschmer.de
обсуждение исходный текст
Ответ на beginner problems with count(*)  (Me Self <wmsopou@gmail.com>)
Список pgsql-general
In response to Me Self :
> Hello Im just getting started using postgres and Ive run run into a
> problem with count(*):
>
> When I do "select count(*) from mytable" or "select count(*) from
> mytable where mycolumn=x" then I get wrong number. The number of rows
> returned is lower than the actual number. How can that happen? The

What exactly do you mean with 'actual number'? Let me guess: you have a
SERIAL column, and the current value is greater than the number of rows
returned by your select, right?

Regards, Andreas
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Andreas Kretschmer
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