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/*-------------------------------------------------------------------------
*
* alter.c
* Drivers for generic alter commands
*
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/alter.c,v 1.31 2009/01/01 17:23:37 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "catalog/namespace.h"
#include "commands/alter.h"
#include "commands/conversioncmds.h"
#include "commands/dbcommands.h"
#include "commands/defrem.h"
#include "commands/proclang.h"
#include "commands/schemacmds.h"
#include "commands/tablecmds.h"
#include "commands/tablespace.h"
#include "commands/trigger.h"
#include "commands/typecmds.h"
#include "commands/user.h"
#include "miscadmin.h"
#include "parser/parse_clause.h"
#include "tcop/utility.h"
#include "utils/acl.h"
#include "utils/lsyscache.h"
/*
* Executes an ALTER OBJECT / RENAME TO statement. Based on the object
* type, the function appropriate to that type is executed.
*/
void
ExecRenameStmt(RenameStmt *stmt)
{
switch (stmt->renameType)
{
case OBJECT_AGGREGATE:
RenameAggregate(stmt->object, stmt->objarg, stmt->newname);
break;
case OBJECT_CONVERSION:
RenameConversion(stmt->object, stmt->newname);
break;
case OBJECT_DATABASE:
RenameDatabase(stmt->subname, stmt->newname);
break;
case OBJECT_FUNCTION:
RenameFunction(stmt->object, stmt->objarg, stmt->newname);
break;
case OBJECT_LANGUAGE:
RenameLanguage(stmt->subname, stmt->newname);
break;
case OBJECT_OPCLASS:
RenameOpClass(stmt->object, stmt->subname, stmt->newname);
break;
case OBJECT_OPFAMILY:
RenameOpFamily(stmt->object, stmt->subname, stmt->newname);
break;
case OBJECT_ROLE:
RenameRole(stmt->subname, stmt->newname);
break;
case OBJECT_SCHEMA:
RenameSchema(stmt->subname, stmt->newname);
break;
case OBJECT_TABLESPACE:
RenameTableSpace(stmt->subname, stmt->newname);
break;
case OBJECT_TABLE:
case OBJECT_SEQUENCE:
case OBJECT_VIEW:
case OBJECT_INDEX:
case OBJECT_COLUMN:
case OBJECT_TRIGGER:
{
Oid relid;
relid = RangeVarGetRelid(stmt->relation, false);
CheckRelationOwnership(relid, true);
switch (stmt->renameType)
{
case OBJECT_TABLE:
case OBJECT_SEQUENCE:
case OBJECT_VIEW:
case OBJECT_INDEX:
{
/*
* RENAME TABLE requires that we (still) hold
* CREATE rights on the containing namespace, as
* well as ownership of the table.
*/
Oid namespaceId = get_rel_namespace(relid);
AclResult aclresult;
aclresult = pg_namespace_aclcheck(namespaceId,
GetUserId(),
ACL_CREATE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_NAMESPACE,
get_namespace_name(namespaceId));
RenameRelation(relid, stmt->newname, stmt->renameType);
break;
}
case OBJECT_COLUMN:
renameatt(relid,
stmt->subname, /* old att name */
stmt->newname, /* new att name */
interpretInhOption(stmt->relation->inhOpt), /* recursive? */
false); /* recursing already? */
break;
case OBJECT_TRIGGER:
renametrig(relid,
stmt->subname, /* old att name */
stmt->newname); /* new att name */
break;
default:
/* can't happen */ ;
}
break;
}
case OBJECT_TSPARSER:
RenameTSParser(stmt->object, stmt->newname);
break;
case OBJECT_TSDICTIONARY:
RenameTSDictionary(stmt->object, stmt->newname);
break;
case OBJECT_TSTEMPLATE:
RenameTSTemplate(stmt->object, stmt->newname);
break;
case OBJECT_TSCONFIGURATION:
RenameTSConfiguration(stmt->object, stmt->newname);
break;
case OBJECT_TYPE:
RenameType(stmt->object, stmt->newname);
break;
default:
elog(ERROR, "unrecognized rename stmt type: %d",
(int) stmt->renameType);
}
}
/*
* Executes an ALTER OBJECT / SET SCHEMA statement. Based on the object
* type, the function appropriate to that type is executed.
*/
void
ExecAlterObjectSchemaStmt(AlterObjectSchemaStmt *stmt)
{
switch (stmt->objectType)
{
case OBJECT_AGGREGATE:
AlterFunctionNamespace(stmt->object, stmt->objarg, true,
stmt->newschema);
break;
case OBJECT_FUNCTION:
AlterFunctionNamespace(stmt->object, stmt->objarg, false,
stmt->newschema);
break;
case OBJECT_SEQUENCE:
case OBJECT_TABLE:
case OBJECT_VIEW:
AlterTableNamespace(stmt->relation, stmt->newschema,
stmt->objectType);
break;
case OBJECT_TYPE:
case OBJECT_DOMAIN:
AlterTypeNamespace(stmt->object, stmt->newschema);
break;
default:
elog(ERROR, "unrecognized AlterObjectSchemaStmt type: %d",
(int) stmt->objectType);
}
}
/*
* Executes an ALTER OBJECT / OWNER TO statement. Based on the object
* type, the function appropriate to that type is executed.
*/
void
ExecAlterOwnerStmt(AlterOwnerStmt *stmt)
{
Oid newowner = get_roleid_checked(stmt->newowner);
switch (stmt->objectType)
{
case OBJECT_AGGREGATE:
AlterAggregateOwner(stmt->object, stmt->objarg, newowner);
break;
case OBJECT_CONVERSION:
AlterConversionOwner(stmt->object, newowner);
break;
case OBJECT_DATABASE:
AlterDatabaseOwner(strVal(linitial(stmt->object)), newowner);
break;
case OBJECT_FUNCTION:
AlterFunctionOwner(stmt->object, stmt->objarg, newowner);
break;
case OBJECT_LANGUAGE:
AlterLanguageOwner(strVal(linitial(stmt->object)), newowner);
break;
case OBJECT_OPERATOR:
Assert(list_length(stmt->objarg) == 2);
AlterOperatorOwner(stmt->object,
(TypeName *) linitial(stmt->objarg),
(TypeName *) lsecond(stmt->objarg),
newowner);
break;
case OBJECT_OPCLASS:
AlterOpClassOwner(stmt->object, stmt->addname, newowner);
break;
case OBJECT_OPFAMILY:
AlterOpFamilyOwner(stmt->object, stmt->addname, newowner);
break;
case OBJECT_SCHEMA:
AlterSchemaOwner(strVal(linitial(stmt->object)), newowner);
break;
case OBJECT_TABLESPACE:
AlterTableSpaceOwner(strVal(linitial(stmt->object)), newowner);
break;
case OBJECT_TYPE:
case OBJECT_DOMAIN: /* same as TYPE */
AlterTypeOwner(stmt->object, newowner);
break;
case OBJECT_TSDICTIONARY:
AlterTSDictionaryOwner(stmt->object, newowner);
break;
case OBJECT_TSCONFIGURATION:
AlterTSConfigurationOwner(stmt->object, newowner);
break;
case OBJECT_FDW:
AlterForeignDataWrapperOwner(strVal(linitial(stmt->object)),
newowner);
break;
case OBJECT_FOREIGN_SERVER:
AlterForeignServerOwner(strVal(linitial(stmt->object)), newowner);
break;
default:
elog(ERROR, "unrecognized AlterOwnerStmt type: %d",
(int) stmt->objectType);
}
}
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