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Further consolidation of DROP statement handling.

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This gets rid of an impressive amount of duplicative code, with only
minimal behavior changes.  DROP FOREIGN DATA WRAPPER now requires object
ownership rather than superuser privileges, matching the documentation
we already have.  We also eliminate the historical warning about dropping
a built-in function as unuseful.  All operations are now performed in the
same order for all object types handled by dropcmds.c.

KaiGai Kohei, with minor revisions by me
This commit is contained in:
Robert Haas
2011-11-17 21:31:29 -05:00
parent 709aca5960
commit fc6d1006bd
21 changed files with 241 additions and 1148 deletions
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37
src/backend/commands/proclang.c
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@ -507,43 +507,6 @@ PLTemplateExists(const char *languageName)
return (find_language_template(languageName) != NULL);
}
/* ---------------------------------------------------------------------
* DROP PROCEDURAL LANGUAGE
* ---------------------------------------------------------------------
*/
void
DropProceduralLanguage(DropPLangStmt *stmt)
{
Oid oid;
ObjectAddress object;
oid = get_language_oid(stmt->plname, stmt->missing_ok);
if (!OidIsValid(oid))
{
ereport(NOTICE,
(errmsg("language \"%s\" does not exist, skipping",
stmt->plname)));
return;
}
/*
* Check permission
*/
if (!pg_language_ownercheck(oid, GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_LANGUAGE,
stmt->plname);
object.classId = LanguageRelationId;
object.objectId = oid;
object.objectSubId = 0;
/*
* Do the deletion
*/
performDeletion(&object, stmt->behavior);
}
/*
* Guts of language dropping.
*/