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Make number of args to a function configurable.

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This commit is contained in:
Bruce Momjian
2000-01-10 17:14:46 +00:00
parent 6456b17bc1
commit 8a093d0ae3
30 changed files with 377 additions and 308 deletions
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70
src/backend/commands/trigger.c
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@ -41,7 +41,7 @@ void
CreateTrigger(CreateTrigStmt *stmt)
{
int16 tgtype;
int16 tgattr[8] = {0};
int16 tgattr[FUNC_MAX_ARGS] = {0};
Datum values[Natts_pg_trigger];
char nulls[Natts_pg_trigger];
Relation rel;
@ -53,7 +53,7 @@ CreateTrigger(CreateTrigStmt *stmt)
Relation idescs[Num_pg_trigger_indices];
Relation ridescs[Num_pg_class_indices];
MemoryContext oldcxt;
Oid fargtypes[8];
Oid fargtypes[FUNC_MAX_ARGS];
int found = 0;
int i;
char constrtrigname[NAMEDATALEN];
@ -144,7 +144,7 @@ CreateTrigger(CreateTrigStmt *stmt)
}
heap_endscan(tgscan);
MemSet(fargtypes, 0, 8 * sizeof(Oid));
MemSet(fargtypes, 0, FUNC_MAX_ARGS * sizeof(Oid));
tuple = SearchSysCacheTuple(PROCNAME,
PointerGetDatum(stmt->funcname),
Int32GetDatum(0),
@ -306,7 +306,7 @@ DropTrigger(DropTrigStmt *stmt)
heap_delete(tgrel, &tuple->t_self, NULL);
tgfound++;
}
else
found++;
@ -368,7 +368,7 @@ RelationRemoveTriggers(Relation rel)
/*** Delete any comments associated with this trigger ***/
DeleteComments(tup->t_data->t_oid);
heap_delete(tgrel, &tup->t_self, NULL);
}
@ -473,7 +473,7 @@ RelationBuildTriggers(Relation relation)
build->tgdeferrable = pg_trigger->tgdeferrable;
build->tginitdeferred = pg_trigger->tginitdeferred;
build->tgnargs = pg_trigger->tgnargs;
memcpy(build->tgattr, &(pg_trigger->tgattr), 8 * sizeof(int16));
memcpy(build->tgattr, &(pg_trigger->tgattr), FUNC_MAX_ARGS * sizeof(int16));
val = (struct varlena *) fastgetattr(&tuple,
Anum_pg_trigger_tgargs,
tgrel->rd_att, &isnull);
@ -992,7 +992,7 @@ deferredTriggerCheckState(Oid tgoid, int32 itemstate)
trigstate = (DeferredTriggerStatus)
palloc(sizeof(DeferredTriggerStatusData));
trigstate->dts_tgoid = tgoid;
trigstate->dts_tgisdeferred =
trigstate->dts_tgisdeferred =
((itemstate & TRIGGER_DEFERRED_INITDEFERRED) != 0);
deftrig_trigstates = lappend(deftrig_trigstates, trigstate);
@ -1008,7 +1008,7 @@ deferredTriggerCheckState(Oid tgoid, int32 itemstate)
* Add a new trigger event to the queue.
* ----------
*/
static void
static void
deferredTriggerAddEvent(DeferredTriggerEvent event)
{
deftrig_events = lappend(deftrig_events, event);
@ -1040,14 +1040,14 @@ deferredTriggerGetPreviousEvent(Oid relid, ItemPointer ctid)
if (previous->dte_event & TRIGGER_DEFERRED_CANCELED)
continue;
if (ItemPointerGetBlockNumber(ctid) ==
if (ItemPointerGetBlockNumber(ctid) ==
ItemPointerGetBlockNumber(&(previous->dte_newctid)) &&
ItemPointerGetOffsetNumber(ctid) ==
ItemPointerGetOffsetNumber(&(previous->dte_newctid)))
return previous;
}
elog(ERROR,
elog(ERROR,
"deferredTriggerGetPreviousEvent(): event for tuple %s not found",
tidout(ctid));
return NULL;
@ -1107,26 +1107,26 @@ deferredTriggerExecute(DeferredTriggerEvent event, int itemno)
case TRIGGER_EVENT_INSERT:
SaveTriggerData.tg_trigtuple = &newtuple;
SaveTriggerData.tg_newtuple = NULL;
SaveTriggerData.tg_trigger =
SaveTriggerData.tg_trigger =
rel->trigdesc->tg_after_row[TRIGGER_EVENT_INSERT][itemno];
break;
case TRIGGER_EVENT_UPDATE:
SaveTriggerData.tg_trigtuple = &oldtuple;
SaveTriggerData.tg_newtuple = &newtuple;
SaveTriggerData.tg_trigger =
SaveTriggerData.tg_trigger =
rel->trigdesc->tg_after_row[TRIGGER_EVENT_UPDATE][itemno];
break;
case TRIGGER_EVENT_DELETE:
SaveTriggerData.tg_trigtuple = &oldtuple;
SaveTriggerData.tg_newtuple = NULL;
SaveTriggerData.tg_trigger =
SaveTriggerData.tg_trigger =
rel->trigdesc->tg_after_row[TRIGGER_EVENT_DELETE][itemno];
break;
default:
}
}
/* ----------
* Call the trigger and throw away an eventually returned
@ -1195,10 +1195,10 @@ deferredTriggerInvokeEvents(bool immediate_only)
* ----------
*/
event = (DeferredTriggerEvent) lfirst(el);
if (event->dte_event & (TRIGGER_DEFERRED_DONE |
if (event->dte_event & (TRIGGER_DEFERRED_DONE |
TRIGGER_DEFERRED_CANCELED))
continue;
/* ----------
* Check each trigger item in the event.
* ----------
@ -1215,7 +1215,7 @@ deferredTriggerInvokeEvents(bool immediate_only)
* ----------
*/
if (immediate_only && deferredTriggerCheckState(
event->dte_item[i].dti_tgoid,
event->dte_item[i].dti_tgoid,
event->dte_item[i].dti_state))
{
still_deferred_ones = true;
@ -1273,7 +1273,7 @@ DeferredTriggerBeginXact(void)
DeferredTriggerStatus stat;
if (deftrig_cxt != NULL)
elog(FATAL,
elog(FATAL,
"DeferredTriggerBeginXact() called while inside transaction");
/* ----------
@ -1286,12 +1286,12 @@ DeferredTriggerBeginXact(void)
deftrig_all_isset = deftrig_dfl_all_isset;
deftrig_all_isdeferred = deftrig_dfl_all_isdeferred;
deftrig_trigstates = NIL;
foreach (l, deftrig_dfl_trigstates)
{
dflstat = (DeferredTriggerStatus) lfirst(l);
stat = (DeferredTriggerStatus)
stat = (DeferredTriggerStatus)
palloc(sizeof(DeferredTriggerStatusData));
stat->dts_tgoid = dflstat->dts_tgoid;
@ -1530,7 +1530,7 @@ DeferredTriggerSetState(ConstraintsSetStmt *stmt)
*/
pg_trigger = (Form_pg_trigger) GETSTRUCT(&tuple);
if (stmt->deferred & !pg_trigger->tgdeferrable)
elog(ERROR, "Constraint '%s' is not deferrable",
elog(ERROR, "Constraint '%s' is not deferrable",
(char *)lfirst(l));
constr_oid = tuple.t_data->t_oid;
@ -1582,7 +1582,7 @@ DeferredTriggerSetState(ConstraintsSetStmt *stmt)
state->dts_tgoid = (Oid) lfirst(l);
state->dts_tgisdeferred = stmt->deferred;
deftrig_dfl_trigstates =
deftrig_dfl_trigstates =
lappend(deftrig_dfl_trigstates, state);
}
}
@ -1618,7 +1618,7 @@ DeferredTriggerSetState(ConstraintsSetStmt *stmt)
state->dts_tgoid = (Oid) lfirst(l);
state->dts_tgisdeferred = stmt->deferred;
deftrig_trigstates =
deftrig_trigstates =
lappend(deftrig_trigstates, state);
}
}
@ -1652,7 +1652,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
TriggerData SaveTriggerData;
if (deftrig_cxt == NULL)
elog(ERROR,
elog(ERROR,
"DeferredTriggerSaveEvent() called outside of transaction");
/* ----------
@ -1681,7 +1681,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
ItemPointerSetInvalid(&(newctid));
/* ----------
* Create a new event
* Create a new event
* ----------
*/
oldcxt = MemoryContextSwitchTo((MemoryContext) deftrig_cxt);
@ -1691,7 +1691,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
new_size = sizeof(DeferredTriggerEventData) +
ntriggers * sizeof(DeferredTriggerEventItem);
new_event = (DeferredTriggerEvent) palloc(new_size);
new_event->dte_event = event & TRIGGER_EVENT_OPMASK;
new_event->dte_relid = rel->rd_id;
@ -1702,10 +1702,10 @@ DeferredTriggerSaveEvent(Relation rel, int event,
for (i = 0; i < ntriggers; i++)
{
new_event->dte_item[i].dti_tgoid = triggers[i]->tgoid;
new_event->dte_item[i].dti_state =
((triggers[i]->tgdeferrable) ?
new_event->dte_item[i].dti_state =
((triggers[i]->tgdeferrable) ?
TRIGGER_DEFERRED_DEFERRABLE : 0) |
((triggers[i]->tginitdeferred) ?
((triggers[i]->tginitdeferred) ?
TRIGGER_DEFERRED_INITDEFERRED : 0) |
((rel->trigdesc->n_before_row[event] > 0) ?
TRIGGER_DEFERRED_HAS_BEFORE : 0);
@ -1729,7 +1729,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
if (oldtup->t_data->t_xmin != GetCurrentTransactionId())
prev_event = NULL;
else
prev_event =
prev_event =
deferredTriggerGetPreviousEvent(rel->rd_id, &oldctid);
/* ----------
@ -1759,7 +1759,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
case F_RI_FKEY_SETDEFAULT_UPD:
is_ri_trigger = true;
break;
default:
is_ri_trigger = false;
break;
@ -1776,7 +1776,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
CurrentTriggerData = &SaveTriggerData;
key_unchanged = RI_FKey_keyequal_upd();
CurrentTriggerData = NULL;
if (key_unchanged)
{
/* ----------
@ -1789,7 +1789,7 @@ DeferredTriggerSaveEvent(Relation rel, int event,
if (prev_event)
{
if (prev_event->dte_event &
if (prev_event->dte_event &
TRIGGER_DEFERRED_ROW_INSERTED)
{
/* ----------
@ -1797,9 +1797,9 @@ DeferredTriggerSaveEvent(Relation rel, int event,
* So any key value is considered changed.
* ----------
*/
new_event->dte_event |=
new_event->dte_event |=
TRIGGER_DEFERRED_ROW_INSERTED;
new_event->dte_event |=
new_event->dte_event |=
TRIGGER_DEFERRED_KEY_CHANGED;
new_event->dte_item[i].dti_state |=
TRIGGER_DEFERRED_KEY_CHANGED;