Re: [GENERAL] more problems with count(*) on large table

am Fri, dem 28.09.2007, um 11:56:46 -0400 mailte Mike Charnoky folgendes:
> Hi,
>
> I am still having problems performing a count(*) on a large table. This
>
> Now, certain count(*) queries are failing to complete for certain time
> ranges (I killed the query after about 24 hours). The table is indexed
> on a timestamp field. Here is one query that hangs:

Again: an index can't help! Because of MVCC: 'select count(*)' without WHERE-condition forces an seq. table-scan.

Andreas

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Andreas Kretschmer
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