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a0b012a1ab
grammar allows ALTER TABLE/INDEX/SEQUENCE/VIEW interchangeably for all subforms of those commands, and then we sort out what's really legal at execution time. This allows the ALTER SEQUENCE/VIEW reference pages to fully document all the ALTER forms available for sequences and views respectively, and eliminates a longstanding cause of confusion for users. The net effect is that the following forms are allowed that weren't before: ALTER SEQUENCE OWNER TO ALTER VIEW ALTER COLUMN SET/DROP DEFAULT ALTER VIEW OWNER TO ALTER VIEW SET SCHEMA (There's no actual functionality gain here, but formerly you had to say ALTER TABLE instead.) Interestingly, the grammar tables actually get smaller, probably because there are fewer special cases to keep track of. I did not disallow using ALTER TABLE for these operations. Perhaps we should, but there's a backwards-compatibility issue if we do; in fact it would break existing pg_dump scripts. I did however tighten up ALTER SEQUENCE and ALTER VIEW to reject non-sequences and non-views in the new cases as well as a couple of cases where they didn't before. The patch doesn't change pg_dump to use the new syntaxes, either.
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* tablecmds.h
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* prototypes for tablecmds.c.
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*
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*
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* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/commands/tablecmds.h,v 1.40 2008/06/15 01:25:54 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef TABLECMDS_H
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#define TABLECMDS_H
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#include "nodes/parsenodes.h"
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#include "utils/rel.h"
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extern Oid DefineRelation(CreateStmt *stmt, char relkind);
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extern void RemoveRelations(DropStmt *drop);
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extern void AlterTable(AlterTableStmt *stmt);
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extern void ATExecChangeOwner(Oid relationOid, Oid newOwnerId, bool recursing);
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extern void AlterTableInternal(Oid relid, List *cmds, bool recurse);
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extern void AlterTableNamespace(RangeVar *relation, const char *newschema,
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ObjectType stmttype);
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extern void AlterRelationNamespaceInternal(Relation classRel, Oid relOid,
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Oid oldNspOid, Oid newNspOid,
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bool hasDependEntry);
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extern void CheckTableNotInUse(Relation rel, const char *stmt);
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extern void ExecuteTruncate(TruncateStmt *stmt);
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extern void renameatt(Oid myrelid,
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const char *oldattname,
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const char *newattname,
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bool recurse,
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bool recursing);
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extern void RenameRelation(Oid myrelid,
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const char *newrelname,
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ObjectType reltype);
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extern void RenameRelationInternal(Oid myrelid,
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const char *newrelname,
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Oid namespaceId);
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extern void find_composite_type_dependencies(Oid typeOid,
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const char *origTblName,
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const char *origTypeName);
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extern AttrNumber *varattnos_map(TupleDesc old, TupleDesc new);
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extern AttrNumber *varattnos_map_schema(TupleDesc old, List *schema);
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extern void change_varattnos_of_a_node(Node *node, const AttrNumber *newattno);
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extern void register_on_commit_action(Oid relid, OnCommitAction action);
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extern void remove_on_commit_action(Oid relid);
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extern void PreCommit_on_commit_actions(void);
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extern void AtEOXact_on_commit_actions(bool isCommit);
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extern void AtEOSubXact_on_commit_actions(bool isCommit,
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SubTransactionId mySubid,
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SubTransactionId parentSubid);
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#endif /* TABLECMDS_H */
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