pgsql: Set up PLPerl trigger data using C code instead of Perl code.

Set up PLPerl trigger data using C code instead of Perl code.

This is an efficiency change, and means we now no longer have to run
"out $_TD; local $_TD = shift;", which was especially pointless in the case of
non-trigger functions where the passed value was always undef anyway.

A tiny open issue is whether we should get rid of the $prolog argument of
mkfunc, and the corresponding pushed value, which is now just a constant "false".

Tim Bunce, reviewed by Alex Hunsaker.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=ef19dc6d39dd2490ff61489da55d95d6941140bf

Modified Files
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src/pl/plperl/plperl.c |   23 +++++++++++------------
1 files changed, 11 insertions(+), 12 deletions(-)