Re: Slow delete

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Colin Gillespie wrote:
| Dear All,
|
| I have four tables linked together with FK. An example is, deleting an id
| in one table, deletes 1,000,000 rows in all the others. However, this
| operation takes 2-3mins (currently this more or less empties the
database.)
| Is this slow?

Depends on what hardware you're using. It sounds like you've done the
right thing so far. I assume you've run explain on the stuff involved to
make sure it's actually using those indexes.

|
| I have checked that the FK have been indexed and that they have been
declared intergers. A full vacuum has also been performed.
|
| Does anyone have any suggestions on how to speed this up?
|
| Thanks
|
| Colin
|
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- --
Andrew Hammond    416-673-4138    ahammond@ca.afilias.info
Database Administrator, Afilias Canada Corp.
CB83 2838 4B67 D40F D086 3568 81FC E7E5 27AF 4A9A
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