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Syntax support and documentation for event triggers.

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They don't actually do anything yet; that will get fixed in a
follow-on commit.  But this gets the basic infrastructure in place,
including CREATE/ALTER/DROP EVENT TRIGGER; support for COMMENT,
SECURITY LABEL, and ALTER EXTENSION .. ADD/DROP EVENT TRIGGER;
pg_dump and psql support; and documentation for the anticipated
initial feature set.

Dimitri Fontaine, with review and a bunch of additional hacking by me.
Thom Brown extensively reviewed earlier versions of this patch set,
but there's not a whole lot of that code left in this commit, as it
turns out.
This commit is contained in:
Robert Haas
2012-07-18 10:16:16 -04:00
parent faf26bf117
commit 3855968f32
56 changed files with 2398 additions and 18 deletions
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26
src/backend/nodes/equalfuncs.c
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@@ -1792,6 +1792,26 @@ _equalCreateTrigStmt(const CreateTrigStmt *a, const CreateTrigStmt *b)
return true;
}
static bool
_equalCreateEventTrigStmt(const CreateEventTrigStmt *a, const CreateEventTrigStmt *b)
{
COMPARE_STRING_FIELD(trigname);
COMPARE_SCALAR_FIELD(eventname);
COMPARE_NODE_FIELD(funcname);
COMPARE_NODE_FIELD(whenclause);
return true;
}
static bool
_equalAlterEventTrigStmt(const AlterEventTrigStmt *a, const AlterEventTrigStmt *b)
{
COMPARE_STRING_FIELD(trigname);
COMPARE_SCALAR_FIELD(tgenabled);
return true;
}
static bool
_equalCreatePLangStmt(const CreatePLangStmt *a, const CreatePLangStmt *b)
{
@@ -2872,6 +2892,12 @@ equal(const void *a, const void *b)
case T_CreateTrigStmt:
retval = _equalCreateTrigStmt(a, b);
break;
case T_CreateEventTrigStmt:
retval = _equalCreateEventTrigStmt(a, b);
break;
case T_AlterEventTrigStmt:
retval = _equalAlterEventTrigStmt(a, b);
break;
case T_CreatePLangStmt:
retval = _equalCreatePLangStmt(a, b);
break;