Re: About dropped notifications

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От
Greg Stark
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Re: About dropped notifications
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87ll2j4ls1.fsf@stark.xeocode.com
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Re: About dropped notifications Chris Browne <cbbrowne@acm.org>
Re: About dropped notifications Tom Lane <tgl@sss.pgh.pa.us>

CSN  writes:

> I'm considering setting up a script that listens for
> notifications for a table and if a row is deleted the
> script will delete that row's corresponding files. 

One way to deal with this would be to have a boolean flag in the table like
"deleted". Update that flag to true, and have a partial index "where deleted".

Then your daemon can quickly query "select file_name where deleted", process
the files and actually complete the deletion. All your other queries need to
test "where not deleted" or go through a view with a clause like that.

-- 
greg
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