From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | Jan Urbański <wulczer(at)wulczer(dot)org>, Postgres - Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: why does plperl cache functions using just a bool for is_trigger |
Date: | 2010-10-25 01:34:33 |
Message-ID: | 26683.1287970473@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> On 10/24/2010 07:50 PM, Tom Lane wrote:
>> Andrew Dunstan<andrew(at)dunslane(dot)net> writes:
>>> Why do we need the is_trigger flag at all for the plperl hash key? At
>>> first glance it strikes me as unnecessary.
>> We might not. Does the presence or absence of the $_TD hash reference
>> have any impact on what we cache, or what Perl might cache internally?
> For both trigger and non-trigger functions, we compile this ahead of the
> user-set function code:
> our $_TD; local $_TD=shift;
> Non-trigger functions get passed "undef" to correspond to this invisible
> argument, while trigger functions get passed the hashref that the
> trigger calling code has set up.
Seems like we don't need it then. You going to get rid of it?
regards, tom lane
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