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Cross-data-type comparisons are now indexable by btrees, pursuant to my

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pghackers proposal of 8-Nov.  All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type.  Along the way, remove the
long-since-defunct bigbox_ops operator class.
This commit is contained in:
Tom Lane
2003-11-12 21:15:59 +00:00
parent 49f98fa833
commit fa5c8a055a
76 changed files with 2237 additions and 1492 deletions
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83
src/backend/commands/trigger.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.161 2003/11/09 21:30:36 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.162 2003/11/12 21:15:51 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -253,10 +253,10 @@ CreateTrigger(CreateTrigStmt *stmt, bool forConstraint)
* relation, so the trigger set won't be changing underneath us.
*/
tgrel = heap_openr(TriggerRelationName, RowExclusiveLock);
ScanKeyEntryInitialize(&key, 0,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(RelationGetRelid(rel)), OIDOID);
ScanKeyInit(&key,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(RelationGetRelid(rel)));
tgscan = systable_beginscan(tgrel, TriggerRelidNameIndex, true,
SnapshotNow, 1, &key);
while (HeapTupleIsValid(tuple = systable_getnext(tgscan)))
@ -465,15 +465,15 @@ DropTrigger(Oid relid, const char *trigname, DropBehavior behavior)
*/
tgrel = heap_openr(TriggerRelationName, AccessShareLock);
ScanKeyEntryInitialize(&skey[0], 0,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid), OIDOID);
ScanKeyInit(&skey[0],
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid));
ScanKeyEntryInitialize(&skey[1], 0,
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(trigname), NAMEOID);
ScanKeyInit(&skey[1],
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(trigname));
tgscan = systable_beginscan(tgrel, TriggerRelidNameIndex, true,
SnapshotNow, 2, skey);
@ -524,10 +524,10 @@ RemoveTriggerById(Oid trigOid)
/*
* Find the trigger to delete.
*/
ScanKeyEntryInitialize(&skey[0], 0,
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(trigOid), OIDOID);
ScanKeyInit(&skey[0],
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(trigOid));
tgscan = systable_beginscan(tgrel, TriggerOidIndex, true,
SnapshotNow, 1, skey);
@ -641,14 +641,14 @@ renametrig(Oid relid,
/*
* First pass -- look for name conflict
*/
ScanKeyEntryInitialize(&key[0], 0,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid), OIDOID);
ScanKeyEntryInitialize(&key[1], 0,
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(newname), NAMEOID);
ScanKeyInit(&key[0],
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid));
ScanKeyInit(&key[1],
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(newname));
tgscan = systable_beginscan(tgrel, TriggerRelidNameIndex, true,
SnapshotNow, 2, key);
if (HeapTupleIsValid(tuple = systable_getnext(tgscan)))
@ -661,14 +661,14 @@ renametrig(Oid relid,
/*
* Second pass -- look for trigger existing with oldname and update
*/
ScanKeyEntryInitialize(&key[0], 0,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid), OIDOID);
ScanKeyEntryInitialize(&key[1], 0,
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(oldname), NAMEOID);
ScanKeyInit(&key[0],
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(relid));
ScanKeyInit(&key[1],
Anum_pg_trigger_tgname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(oldname));
tgscan = systable_beginscan(tgrel, TriggerRelidNameIndex, true,
SnapshotNow, 2, key);
if (HeapTupleIsValid(tuple = systable_getnext(tgscan)))
@ -744,11 +744,10 @@ RelationBuildTriggers(Relation relation)
* emergency-recovery operations (ie, IsIgnoringSystemIndexes). This
* in turn ensures that triggers will be fired in name order.
*/
ScanKeyEntryInitialize(&skey, 0,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(RelationGetRelid(relation)),
OIDOID);
ScanKeyInit(&skey,
Anum_pg_trigger_tgrelid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(RelationGetRelid(relation)));
tgrel = heap_openr(TriggerRelationName, AccessShareLock);
tgscan = systable_beginscan(tgrel, TriggerRelidNameIndex, true,
@ -2262,10 +2261,10 @@ DeferredTriggerSetState(ConstraintsSetStmt *stmt)
/*
* Setup to scan pg_trigger by tgconstrname ...
*/
ScanKeyEntryInitialize(&skey, 0,
Anum_pg_trigger_tgconstrname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(cname), NAMEOID);
ScanKeyInit(&skey,
Anum_pg_trigger_tgconstrname,
BTEqualStrategyNumber, F_NAMEEQ,
PointerGetDatum(cname));
tgscan = systable_beginscan(tgrel, TriggerConstrNameIndex, true,
SnapshotNow, 1, &skey);