Re: DEALLOCATE IF EXISTS - Mailing list pgsql-hackers

From Vik Reykja
Subject Re: DEALLOCATE IF EXISTS
Date
Msg-id CALDgxVsHxo5+iNwiM9hwi57h71wSgOkRfQE_613Mfx8bm46a+A@mail.gmail.com
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In response to Re: DEALLOCATE IF EXISTS  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Responses Re: DEALLOCATE IF EXISTS  (Heikki Linnakangas <hlinnakangas@vmware.com>)
List pgsql-hackers
<br /><div class="gmail_extra"><div class="gmail_quote">On Tue, Nov 27, 2012 at 3:15 PM, Heikki Linnakangas <span
dir="ltr"><<ahref="mailto:hlinnakangas@vmware.com" target="_blank">hlinnakangas@vmware.com</a>></span> wrote:<br
/><blockquoteclass="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I fail to see
thepoint of DEALLOCATE IF EXISTS. Do you have real use case for this, or was this just a case of adding IF EXISTS to
allcommands for the sake of completeness?<br /><br /> Usually the client knows what statements have been prepared, but
perhapsyou want to make sure everything is deallocated in some error handling case or similar. But in that case, you
mightas well just issue a regular DEALLOCATE and ignore errors. Or even more likely, you'll want to use DEALLOCATE
ALL.<spanclass="HOEnZb"><font color="#888888"></font></span><br /></blockquote></div><br />Hmm.  The test case I had
forit, which was very annoying in an "I want to be lazy" sort of way, I am unable to reproduce now.  So I guess this
becomesa "make it like the others" and the community can decide whether that's desirable.<br /><br />In my personal
case,which again I can't reproduce because it's been a while since I've done it, DEALLOCATE ALL would have worked.  I
wasbasically preparing a query to work on it in the same conditions that it would be executed in a function, and I was
onlyworking on one of these at a time so ALL would have been fine.<br /></div> 

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