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Some infrastructure changes for the upcoming auto-explain contrib module:

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* Refactor explain.c slightly to export a convenient-to-use subroutine
for printing EXPLAIN results.

* Provide hooks for plugins to get control at ExecutorStart and ExecutorEnd
as well as ExecutorRun.

* Add some minimal support for tracking the total runtime of ExecutorRun.
This code won't actually do anything unless a plugin prods it to.

* Change the API of the DefineCustomXXXVariable functions to allow nonzero
"flags" to be specified for a custom GUC variable.  While at it, also make
the "bootstrap" default value for custom GUCs be explicitly specified as a
parameter to these functions.  This is to eliminate confusion over where the
default comes from, as has been expressed in the past by some users of the
custom-variable facility.

* Refactor GUC code a bit to ensure that a custom variable gets initialized to
something valid (like its default value) even if the placeholder value was
invalid.
This commit is contained in:
Tom Lane
2008-11-19 01:10:24 +00:00
parent 667685ca7d
commit cd35e9d746
10 changed files with 293 additions and 170 deletions
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5
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 1.141 2008/10/29 00:00:39 tgl Exp $
* $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.142 2008/11/19 01:10:24 tgl Exp $
*
**********************************************************************/
@ -196,7 +196,8 @@ _PG_init(void)
gettext_noop("If true, will compile trusted and untrusted perl code in strict mode"),
NULL,
&plperl_use_strict,
PGC_USERSET,
false,
PGC_USERSET, 0,
NULL, NULL);
EmitWarningsOnPlaceholders("plperl");