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Add ALTER object SET SCHEMA capability for a limited but useful set of

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object kinds (tables, functions, types).  Documentation is not here yet.
Original code by Bernd Helmle, extensive rework by Bruce Momjian and
Tom Lane.
This commit is contained in:
Tom Lane
2005-08-01 04:03:59 +00:00
parent a85e5d1b1b
commit 35508d1cca
22 changed files with 1095 additions and 41 deletions
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60
src/backend/catalog/namespace.c
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@@ -13,7 +13,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/catalog/namespace.c,v 1.76 2005/06/28 05:08:52 tgl Exp $
* $PostgreSQL: pgsql/src/backend/catalog/namespace.c,v 1.77 2005/08/01 04:03:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1235,12 +1235,43 @@ LookupExplicitNamespace(const char *nspname)
return namespaceId;
}
/*
* LookupCreationNamespace
* Look up the schema and verify we have CREATE rights on it.
*
* This is just like LookupExplicitNamespace except for the permission check.
*/
Oid
LookupCreationNamespace(const char *nspname)
{
Oid namespaceId;
AclResult aclresult;
namespaceId = GetSysCacheOid(NAMESPACENAME,
CStringGetDatum(nspname),
0, 0, 0);
if (!OidIsValid(namespaceId))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_SCHEMA),
errmsg("schema \"%s\" does not exist", nspname)));
aclresult = pg_namespace_aclcheck(namespaceId, GetUserId(), ACL_CREATE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_NAMESPACE,
nspname);
return namespaceId;
}
/*
* QualifiedNameGetCreationNamespace
* Given a possibly-qualified name for an object (in List-of-Values
* format), determine what namespace the object should be created in.
* Also extract and return the object name (last component of list).
*
* Note: this does not apply any permissions check. Callers must check
* for CREATE rights on the selected namespace when appropriate.
*
* This is *not* used for tables. Hence, the TEMP table namespace is
* never selected as the creation target.
*/
@@ -1277,8 +1308,6 @@ QualifiedNameGetCreationNamespace(List *names, char **objname_p)
errmsg("no schema has been selected to create in")));
}
/* Note: callers will check for CREATE rights when appropriate */
*objname_p = objname;
return namespaceId;
}
@@ -1379,19 +1408,16 @@ isTempNamespace(Oid namespaceId)
}
/*
* isOtherTempNamespace - is the given namespace some other backend's
* temporary-table namespace?
* isAnyTempNamespace - is the given namespace a temporary-table namespace
* (either my own, or another backend's)?
*/
bool
isOtherTempNamespace(Oid namespaceId)
isAnyTempNamespace(Oid namespaceId)
{
bool result;
char *nspname;
/* If it's my own temp namespace, say "false" */
if (isTempNamespace(namespaceId))
return false;
/* Else, if the namespace name starts with "pg_temp_", say "true" */
/* If the namespace name starts with "pg_temp_", say "true" */
nspname = get_namespace_name(namespaceId);
if (!nspname)
return false; /* no such namespace? */
@@ -1400,6 +1426,20 @@ isOtherTempNamespace(Oid namespaceId)
return result;
}
/*
* isOtherTempNamespace - is the given namespace some other backend's
* temporary-table namespace?
*/
bool
isOtherTempNamespace(Oid namespaceId)
{
/* If it's my own temp namespace, say "false" */
if (isTempNamespace(namespaceId))
return false;
/* Else, if the namespace name starts with "pg_temp_", say "true" */
return isAnyTempNamespace(namespaceId);
}
/*
* PushSpecialNamespace - push a "special" namespace onto the front of the
* search path.