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Fix session-lifespan memory leak when a plperl function is redefined:

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we have to tell Perl it can release its compiled copy of the function
text.  Noted by Alexey Klyukin.

Back-patch to 8.2 --- the problem exists further back, but this patch
won't work without modification, and it's probably not worth the trouble.
This commit is contained in:
Tom Lane 2009-11-29 21:02:16 +00:00
parent 22032820f9
commit 67ec9adaf1
1 changed files with 5 additions and 3 deletions
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8
src/pl/plperl/plperl.c
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@ -1,7 +1,7 @@
/**********************************************************************
* plperl.c - perl as a procedural language for PostgreSQL
*
* $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.154 2009/11/29 03:02:27 tgl Exp $
* $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.155 2009/11/29 21:02:16 tgl Exp $
*
**********************************************************************/
@ -1651,11 +1651,13 @@ compile_plperl_function(Oid fn_oid, bool is_trigger)
if (!uptodate)
{
hash_search(plperl_proc_hash, internal_proname,
HASH_REMOVE, NULL);
if (prodesc->reference)
SvREFCNT_dec(prodesc->reference);
free(prodesc->proname);
free(prodesc);
prodesc = NULL;
hash_search(plperl_proc_hash, internal_proname,
HASH_REMOVE, NULL);
}
}