database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-08 11:42:09 +03:00
Code Activity

Second phase of committing Rod Taylor's pg_depend/pg_constraint patch.

Browse Source 
pg_relcheck is gone; CHECK, UNIQUE, PRIMARY KEY, and FOREIGN KEY
constraints all have real live entries in pg_constraint.  pg_depend
exists, and RESTRICT/CASCADE options work on most kinds of DROP;
however, pg_depend is not yet very well populated with dependencies.
(Most of the ones that are present at this point just replace formerly
hardwired associations, such as the implicit drop of a relation's pg_type
entry when the relation is dropped.)  Need to add more logic to create
dependency entries, improve pg_dump to dump constraints in place of
indexes and triggers, and add some regression tests.
This commit is contained in:
Tom Lane
2002-07-12 18:43:19 +00:00
parent 791a40f943
commit 7c6df91dda
77 changed files with 4074 additions and 1987 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
src/backend/commands/proclang.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.34 2002/06/20 20:29:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/proclang.c,v 1.35 2002/07/12 18:43:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -17,6 +17,7 @@
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/dependency.h"
#include "catalog/indexing.h"
#include "catalog/namespace.h"
#include "catalog/pg_language.h"
@ -140,7 +141,7 @@ DropProceduralLanguage(DropPLangStmt *stmt)
{
char languageName[NAMEDATALEN];
HeapTuple langTup;
Relation rel;
ObjectAddress object;
/*
* Check permission
@ -155,11 +156,9 @@ DropProceduralLanguage(DropPLangStmt *stmt)
*/
case_translate_language_name(stmt->plname, languageName);
rel = heap_openr(LanguageRelationName, RowExclusiveLock);
langTup = SearchSysCacheCopy(LANGNAME,
PointerGetDatum(languageName),
0, 0, 0);
langTup = SearchSysCache(LANGNAME,
CStringGetDatum(languageName),
0, 0, 0);
if (!HeapTupleIsValid(langTup))
elog(ERROR, "Language %s doesn't exist", languageName);
@ -167,8 +166,39 @@ DropProceduralLanguage(DropPLangStmt *stmt)
elog(ERROR, "Language %s isn't a created procedural language",
languageName);
object.classId = get_system_catalog_relid(LanguageRelationName);
object.objectId = langTup->t_data->t_oid;
object.objectSubId = 0;
ReleaseSysCache(langTup);
/*
* Do the deletion
*/
performDeletion(&object, stmt->behavior);
}
/*
* Guts of language dropping.
*/
void
DropProceduralLanguageById(Oid langOid)
{
Relation rel;
HeapTuple langTup;
rel = heap_openr(LanguageRelationName, RowExclusiveLock);
langTup = SearchSysCache(LANGOID,
ObjectIdGetDatum(langOid),
0, 0, 0);
if (!HeapTupleIsValid(langTup))
elog(ERROR, "DropProceduralLanguageById: language %u not found",
langOid);
simple_heap_delete(rel, &langTup->t_self);
heap_freetuple(langTup);
ReleaseSysCache(langTup);
heap_close(rel, RowExclusiveLock);
}