On 9/22/08, Jay A. Kreibich <[EMAIL PROTECTED]> wrote:
> On Mon, Sep 22, 2008 at 04:02:37PM -0600, Dennis Cote scratched on the wall:
>  > P Kishor wrote:
>
>  > > How do I get the number of rows that were deleted by the above DELETE?
>  > > Do I first do a SELECT to find out the number of matches before doing
>  > > the DELETE?
>  >
>  > You don't need to the trigger fires for each row that is deleted,
>
>
>   ...unless the command is "DELETE FROM <table>;" with no WHERE clause.
>   In that case the table is truncated and no triggers are fired.

Thanks for the caveat. I will set the logic for that in the
application to update the counts table manually.


>
>   To avoid that, either manually clear the row-count for that table or
>   use "DELETE FROM <table> WHERE 1;".  It will be much slower, but it
>   will delete the rows one at a time, calling the trigger on each one.
>
>    -j
>
>
>  --
>  Jay A. Kreibich < J A Y  @  K R E I B I.C H >
>
>  "Our opponent is an alien starship packed with atomic bombs.  We have
>   a protractor."   "I'll go home and see if I can scrounge up a ruler
>   and a piece of string."  --from Anathem by Neal Stephenson
>


-- 
Puneet Kishor http://punkish.eidesis.org/
Nelson Institute for Environmental Studies http://www.nelson.wisc.edu/
Open Source Geospatial Foundation (OSGeo) http://www.osgeo.org/
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