| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Michael Thorsen" <mthorsen1980(at)gmail(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: SQL query |
| Date: | 2008-11-22 18:17:15 |
| Message-ID: | 29116.1227377835@sss.pgh.pa.us |
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| Lists: | pgsql-general |
"Michael Thorsen" <mthorsen1980(at)gmail(dot)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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