Re: SQL query

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От Tom Lane
Тема Re: SQL query
Дата
Msg-id 29116.1227377835@sss.pgh.pa.us
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Ответ на SQL query  ("Michael Thorsen" <mthorsen1980@gmail.com>)
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"Michael Thorsen" <mthorsen1980@gmail.com> writes:
> ... I gave a simple example above, but the query runs over 2 tables
> with about a million entries in each. So I am unable to verify what is
> wrong, but I know the count is incorrect as I should not have more than what
> is in the user_table.

You could easily get a count larger than the number of rows in
user_table, if there are rows in user_table that join to multiple rows
in the locations table.  So look for duplicated data in locations ...

            regards, tom lane

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