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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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59
src/backend/commands/dbcommands.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.125 2003/11/09 21:30:36 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.126 2003/11/12 21:15:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -27,7 +27,6 @@
#include "catalog/pg_database.h"
#include "catalog/pg_shadow.h"
#include "catalog/indexing.h"
#include "catalog/pg_type.h"
#include "commands/comment.h"
#include "commands/dbcommands.h"
#include "miscadmin.h"
@ -531,10 +530,10 @@ dropdb(const char *dbname)
/*
* Find the database's tuple by OID (should be unique).
*/
ScanKeyEntryInitialize(&key, 0,
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(db_id), OIDOID);
ScanKeyInit(&key,
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(db_id));
pgdbscan = systable_beginscan(pgdbrel, DatabaseOidIndex, true,
SnapshotNow, 1, &key);
@ -616,10 +615,10 @@ RenameDatabase(const char *oldname, const char *newname)
*/
rel = heap_openr(DatabaseRelationName, AccessExclusiveLock);
ScanKeyEntryInitialize(&key, 0,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(oldname), NAMEOID);
ScanKeyInit(&key,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(oldname));
scan = systable_beginscan(rel, DatabaseNameIndex, true,
SnapshotNow, 1, &key);
@ -651,10 +650,10 @@ RenameDatabase(const char *oldname, const char *newname)
oldname)));
/* make sure the new name doesn't exist */
ScanKeyEntryInitialize(&key2, 0,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(newname), NAMEOID);
ScanKeyInit(&key2,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(newname));
scan2 = systable_beginscan(rel, DatabaseNameIndex, true,
SnapshotNow, 1, &key2);
if (HeapTupleIsValid(systable_getnext(scan2)))
@ -712,10 +711,10 @@ AlterDatabaseSet(AlterDatabaseSetStmt *stmt)
valuestr = flatten_set_variable_args(stmt->variable, stmt->value);
rel = heap_openr(DatabaseRelationName, RowExclusiveLock);
ScanKeyEntryInitialize(&scankey, 0,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(stmt->dbname), NAMEOID);
ScanKeyInit(&scankey,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(stmt->dbname));
scan = systable_beginscan(rel, DatabaseNameIndex, true,
SnapshotNow, 1, &scankey);
tuple = systable_getnext(scan);
@ -795,10 +794,10 @@ get_db_info(const char *name, Oid *dbIdP, int4 *ownerIdP,
/* Caller may wish to grab a better lock on pg_database beforehand... */
relation = heap_openr(DatabaseRelationName, AccessShareLock);
ScanKeyEntryInitialize(&scanKey, 0,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(name), NAMEOID);
ScanKeyInit(&scanKey,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
NameGetDatum(name));
scan = systable_beginscan(relation, DatabaseNameIndex, true,
SnapshotNow, 1, &scanKey);
@ -1001,10 +1000,10 @@ get_database_oid(const char *dbname)
/* There's no syscache for pg_database, so must look the hard way */
pg_database = heap_openr(DatabaseRelationName, AccessShareLock);
ScanKeyEntryInitialize(&entry[0], 0,
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(dbname), NAMEOID);
ScanKeyInit(&entry[0],
Anum_pg_database_datname,
BTEqualStrategyNumber, F_NAMEEQ,
CStringGetDatum(dbname));
scan = systable_beginscan(pg_database, DatabaseNameIndex, true,
SnapshotNow, 1, entry);
@ -1041,10 +1040,10 @@ get_database_name(Oid dbid)
/* There's no syscache for pg_database, so must look the hard way */
pg_database = heap_openr(DatabaseRelationName, AccessShareLock);
ScanKeyEntryInitialize(&entry[0], 0,
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(dbid), OIDOID);
ScanKeyInit(&entry[0],
ObjectIdAttributeNumber,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(dbid));
scan = systable_beginscan(pg_database, DatabaseOidIndex, true,
SnapshotNow, 1, entry);