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ALTER DOMAIN OWNER, from Rod Taylor.
This commit is contained in:
Tom Lane
parent
1bf1597e3a
commit
daec989f6a
@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.6 2002/12/06 16:40:13 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_domain.sgml,v 1.7 2003/01/06 00:31:44 tgl Exp $
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PostgreSQL documentation
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-->
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@ -29,6 +29,8 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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ADD <replaceable class="PARAMETER">domain_constraint</replaceable>
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ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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DROP CONSTRAINT <replaceable class="PARAMETER">constraint_name</replaceable> [ RESTRICT | CASCADE ]
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ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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OWNER TO <replaceable class="PARAMETER">new_owner</replaceable>
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</synopsis>
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<refsect2 id="R2-SQL-ALTERDOMAIN-1">
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@ -73,7 +75,7 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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<term>CASCADE</term>
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<listitem>
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<para>
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Automatically drop objects that depend constraint.
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Automatically drop objects that depend on the constraint.
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</para>
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</listitem>
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</varlistentry>
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@ -88,6 +90,15 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">new_owner</replaceable></term>
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<listitem>
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<para>
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The user name of the new owner of the domain.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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@ -141,9 +152,9 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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<term>SET/DROP DEFAULT</term>
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<listitem>
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<para>
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These forms set or remove the default value for a column. Note
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These forms set or remove the default value for a domain. Note
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that defaults only apply to subsequent <command>INSERT</command>
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commands; they do not cause rows already in a table using the domain.
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commands; they do not affect rows already in a table using the domain.
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</para>
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</listitem>
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</varlistentry>
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@ -154,8 +165,7 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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<para>
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These forms change whether a domain is marked to allow NULL
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values or to reject NULL values. You may only <literal>SET NOT NULL</>
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when the tables using the domain contain no null values in the domain
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based column.
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when the columns using the domain contain no null values.
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</para>
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</listitem>
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</varlistentry>
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@ -164,8 +174,10 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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<term>ADD <replaceable class="PARAMETER">domain_constraint</replaceable></term>
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<listitem>
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<para>
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This form adds a new constraint to a table using the same syntax as
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<xref linkend="SQL-CREATEDOMAIN" endterm="SQL-CREATEDOMAIN-TITLE">.
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This form adds a new constraint to a domain using the same syntax as
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<xref linkend="SQL-CREATEDOMAIN" endterm="SQL-CREATEDOMAIN-TITLE">.
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This will only succeed if all columns using the domain satisfy the
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new constraint.
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</para>
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</listitem>
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</varlistentry>
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@ -179,11 +191,19 @@ ALTER DOMAIN <replaceable class="PARAMETER">domain</replaceable>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>OWNER</term>
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<listitem>
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<para>
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This form changes the owner of the domain to the specified user.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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You must own the domain to use <command>ALTER DOMAIN</>; except for
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<command>ALTER TABLE OWNER</>, which may only be executed by a superuser.
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<command>ALTER DOMAIN OWNER</>, which may only be executed by a superuser.
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</para>
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</refsect1>
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.26 2003/01/04 00:46:08 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.27 2003/01/06 00:31:44 tgl Exp $
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*
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* DESCRIPTION
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* The "DefineFoo" routines take the parse tree and pick out the
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@ -1673,3 +1673,61 @@ domainAddConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
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*/
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return ccbin;
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}
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/*
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* ALTER DOMAIN .. OWNER TO
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*
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* Eventually this should allow changing ownership of other kinds of types,
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* but some thought must be given to handling complex types. (A table's
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* rowtype probably shouldn't be allowed as target, but what of a standalone
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* composite type?)
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*
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* Assumes that permission checks have been completed earlier.
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*/
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void
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AlterTypeOwner(List *names, AclId newOwnerSysId)
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{
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TypeName *typename;
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Oid typeOid;
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Relation rel;
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HeapTuple tup;
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Form_pg_type typTup;
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/* Make a TypeName so we can use standard type lookup machinery */
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typename = makeNode(TypeName);
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typename->names = names;
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typename->typmod = -1;
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typename->arrayBounds = NIL;
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/* Lock the type table */
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rel = heap_openr(TypeRelationName, RowExclusiveLock);
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/* Use LookupTypeName here so that shell types can be processed (why?) */
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typeOid = LookupTypeName(typename);
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if (!OidIsValid(typeOid))
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elog(ERROR, "Type \"%s\" does not exist",
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TypeNameToString(typename));
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tup = SearchSysCacheCopy(TYPEOID,
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ObjectIdGetDatum(typeOid),
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0, 0, 0);
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if (!HeapTupleIsValid(tup))
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elog(ERROR, "AlterDomain: type \"%s\" does not exist",
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TypeNameToString(typename));
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typTup = (Form_pg_type) GETSTRUCT(tup);
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/* Check that this is actually a domain */
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if (typTup->typtype != 'd')
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elog(ERROR, "%s is not a domain",
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TypeNameToString(typename));
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/* Modify the owner --- okay to scribble on typTup because it's a copy */
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typTup->typowner = newOwnerSysId;
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simple_heap_update(rel, &tup->t_self, tup);
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CatalogUpdateIndexes(rel, tup);
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/* Clean up */
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heap_close(rel, RowExclusiveLock);
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}
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@ -11,7 +11,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.389 2002/12/30 15:31:47 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.390 2003/01/06 00:31:44 tgl Exp $
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*
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* HISTORY
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* AUTHOR DATE MAJOR EVENT
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@ -3764,6 +3764,15 @@ AlterDomainStmt:
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n->behavior = $7;
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$$ = (Node *)n;
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}
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/* ALTER DOMAIN <domain> OWNER TO UserId */
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| ALTER DOMAIN_P any_name OWNER TO UserId
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{
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AlterDomainStmt *n = makeNode(AlterDomainStmt);
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n->subtype = 'U';
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n->typename = $3;
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n->name = $6;
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$$ = (Node *)n;
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}
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;
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opt_as: AS {}
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@ -10,7 +10,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.187 2002/12/30 18:42:16 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.188 2003/01/06 00:31:44 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -439,11 +439,11 @@ ProcessUtility(Node *parsetree,
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stmt->newname); /* new att name */
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break;
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case RENAME_RULE:
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elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
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elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
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stmt->renameType);
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break;
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default:
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elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
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elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
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stmt->renameType);
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}
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}
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@ -553,7 +553,8 @@ ProcessUtility(Node *parsetree,
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get_usesysid(stmt->name));
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break;
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default: /* oops */
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elog(ERROR, "T_AlterTableStmt: unknown subtype");
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elog(ERROR, "ProcessUtility: Invalid type for AlterTableStmt: %d",
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stmt->subtype);
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break;
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}
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}
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@ -595,8 +596,17 @@ ProcessUtility(Node *parsetree,
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stmt->name,
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stmt->behavior);
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break;
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case 'U': /* OWNER TO */
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/* check that we are the superuser */
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if (!superuser())
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elog(ERROR, "ALTER DOMAIN: permission denied");
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/* get_usesysid raises an error if no such user */
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AlterTypeOwner(stmt->typename,
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get_usesysid(stmt->name));
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break;
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default: /* oops */
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elog(ERROR, "T_AlterDomainStmt: unknown subtype");
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elog(ERROR, "ProcessUtility: Invalid type for AlterDomainStmt: %d",
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stmt->subtype);
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break;
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}
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}
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@ -7,15 +7,17 @@
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* Portions Copyright (c) 1996-2002, 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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* $Id: typecmds.h,v 1.2 2002/12/10 16:12:53 tgl Exp $
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* $Id: typecmds.h,v 1.3 2003/01/06 00:31:44 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef TYPECMDS_H
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#define TYPECMDS_H
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#include "miscadmin.h"
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#include "nodes/parsenodes.h"
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#define DEFAULT_TYPDELIM ','
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extern void DefineType(List *names, List *parameters);
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@ -31,4 +33,6 @@ extern void AlterDomainAddConstraint(List *names, Node *constr);
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extern void AlterDomainDropConstraint(List *names, const char *constrName,
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DropBehavior behavior);
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extern void AlterTypeOwner(List *names, AclId newOwnerSysId);
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#endif /* TYPECMDS_H */
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2002, 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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* $Id: parsenodes.h,v 1.224 2002/12/30 15:31:51 momjian Exp $
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* $Id: parsenodes.h,v 1.225 2003/01/06 00:31:45 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -711,7 +711,7 @@ typedef struct AlterTableStmt
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* Alter Domain
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*
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* The fields are used in different ways by the different variants of
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* this command. Subtypes should match AlterTable subtypes
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* this command. Subtypes should match AlterTable subtypes where possible.
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* ----------------------
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*/
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typedef struct AlterDomainStmt
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