From Vince Vielhaber.
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_group.sgml,v 1.2 2000/03/27 17:14:42 thomas Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_group.sgml,v 1.3 2001/07/12 18:02:58 tgl Exp $
Postgres documentation
-->
<date>2000-01-14</date>
</refsynopsisdivinfo>
<synopsis>
-CREATE GROUP <replaceable class="PARAMETER">name</replaceable>
- [ WITH
- [ SYSID <replaceable class="PARAMETER">gid</replaceable> ]
- [ USER <replaceable class="PARAMETER">username</replaceable> [, ...] ] ]
+CREATE GROUP <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replaceable class="PARAMETER">option</replaceable> [ ... ] ]
+
+where <replaceable class="PARAMETER">option</replaceable> can be:
+
+ SYSID <replaceable class="PARAMETER">gid</replaceable>
+ | USER <replaceable class="PARAMETER">username</replaceable> [, ...]
</synopsis>
<refsect2 id="R2-SQL-CREATEGROUP-1">
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.78 2001/07/10 22:09:28 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.79 2001/07/12 18:02:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
HeapTuple tuple;
TupleDesc pg_group_dsc;
bool group_exists = false,
- sysid_exists = false;
+ sysid_exists = false,
+ havesysid = false;
int max_id = 0;
Datum new_record[Natts_pg_group];
char new_record_nulls[Natts_pg_group];
List *item,
- *newlist = NULL;
+ *option,
+ *newlist = NIL;
ArrayType *userarray;
+ int sysid = 0;
+ List *userElts = NIL;
+ DefElem *dsysid = NULL;
+ DefElem *duserElts = NULL;
+
+ foreach(option, stmt->options)
+ {
+ DefElem *defel = (DefElem *) lfirst(option);
+
+ if (strcasecmp(defel->defname, "sysid") == 0) {
+ if (dsysid)
+ elog(ERROR, "CREATE GROUP: conflicting options");
+ dsysid = defel;
+ }
+ else if (strcasecmp(defel->defname, "userElts") == 0) {
+ if (duserElts)
+ elog(ERROR, "CREATE GROUP: conflicting options");
+ duserElts = defel;
+ }
+ else
+ elog(ERROR,"CREATE GROUP: option \"%s\" not recognized",
+ defel->defname);
+ }
+
+ if (dsysid)
+ {
+ sysid = intVal(dsysid->arg);
+ havesysid = true;
+ }
+
+ if (duserElts)
+ userElts = (List *) duserElts->arg;
/*
* Make sure the user can do this.
datum = heap_getattr(tuple, Anum_pg_group_grosysid,
pg_group_dsc, &null);
Assert(!null);
- if (stmt->sysid >= 0) /* customized id wanted */
- sysid_exists = (DatumGetInt32(datum) == stmt->sysid);
+ if (havesysid) /* customized id wanted */
+ sysid_exists = (DatumGetInt32(datum) == sysid);
else
{
/* pick 1 + max */
stmt->name);
if (sysid_exists)
elog(ERROR, "CREATE GROUP: group sysid %d is already assigned",
- stmt->sysid);
+ sysid);
/*
* Translate the given user names to ids
*/
- foreach(item, stmt->initUsers)
+ foreach(item, userElts)
{
const char *groupuser = strVal(lfirst(item));
Value *v;
v = makeInteger(get_usesysid(groupuser));
if (!member(v, newlist))
- newlist = lcons(v, newlist);
+ newlist = lappend(newlist, v);
}
/* build an array to insert */
/*
* Form a tuple to insert
*/
- if (stmt->sysid >= 0)
- max_id = stmt->sysid;
- else
- max_id++;
+ if (!havesysid)
+ sysid = max_id + 1;
new_record[Anum_pg_group_groname - 1] =
DirectFunctionCall1(namein, CStringGetDatum(stmt->name));
- new_record[Anum_pg_group_grosysid - 1] = Int32GetDatum(max_id);
+ new_record[Anum_pg_group_grosysid - 1] = Int32GetDatum(sysid);
new_record[Anum_pg_group_grolist - 1] = PointerGetDatum(userarray);
new_record_nulls[Anum_pg_group_groname - 1] = ' ';
char new_record_nulls[Natts_pg_group];
ArrayType *newarray,
*oldarray;
- List *newlist = NULL,
+ List *newlist = NIL,
*item;
HeapTuple tuple;
bool null = false;
v = makeInteger(arrval);
/* filter out duplicates */
if (!member(v, newlist))
- newlist = lcons(v, newlist);
+ newlist = lappend(newlist, v);
}
/*
}
if (!member(v, newlist))
- newlist = lcons(v, newlist);
+ newlist = lappend(newlist, v);
else
/*
* we silently assume here that this error will only come
char new_record_nulls[Natts_pg_group];
ArrayType *oldarray,
*newarray;
- List *newlist = NULL,
+ List *newlist = NIL,
*item;
int i;
v = makeInteger(arrval);
/* filter out duplicates */
if (!member(v, newlist))
- newlist = lcons(v, newlist);
+ newlist = lappend(newlist, v);
}
/*
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.146 2001/07/10 22:09:28 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.147 2001/07/12 18:02:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
if (from->name)
newnode->name = pstrdup(from->name);
- newnode->sysid = from->sysid;
- Node_Copy(from, newnode, initUsers);
+ Node_Copy(from, newnode, options);
return newnode;
}
if (from->name)
newnode->name = pstrdup(from->name);
newnode->action = from->action;
- newnode->sysid = from->sysid;
Node_Copy(from, newnode, listUsers);
return newnode;
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.94 2001/07/10 22:09:28 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.95 2001/07/12 18:02:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
{
if (!equalstr(a->name, b->name))
return false;
- if (a->sysid != b->sysid)
- return false;
- if (!equal(a->initUsers, b->initUsers))
+ if (!equal(a->options, b->options))
return false;
return true;
return false;
if (a->action != b->action)
return false;
- if (a->sysid != b->sysid)
- return false;
if (!equal(a->listUsers, b->listUsers))
return false;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.235 2001/07/10 22:09:28 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.236 2001/07/12 18:02:59 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
%type <ival> opt_lock, lock_type
%type <boolean> opt_force
-%type <list> user_list, users_in_new_group_clause
+%type <list> user_list
+
+%type <list> OptGroupList
+%type <defelt> OptGroupElem
%type <list> OptUserList
%type <defelt> OptUserElem
*****************************************************************************/
CreateUserStmt: CREATE USER UserId OptUserList
- {
+ {
CreateUserStmt *n = makeNode(CreateUserStmt);
n->user = $3;
n->options = $4;
$$ = (Node *)n;
- }
- | CREATE USER UserId WITH OptUserList
- {
+ }
+ | CREATE USER UserId WITH OptUserList
+ {
CreateUserStmt *n = makeNode(CreateUserStmt);
n->user = $3;
n->options = $5;
$$ = (Node *)n;
- }
+ }
;
/*****************************************************************************
*****************************************************************************/
AlterUserStmt: ALTER USER UserId OptUserList
- {
+ {
AlterUserStmt *n = makeNode(AlterUserStmt);
n->user = $3;
n->options = $4;
$$ = (Node *)n;
- }
- | ALTER USER UserId WITH OptUserList
- {
+ }
+ | ALTER USER UserId WITH OptUserList
+ {
AlterUserStmt *n = makeNode(AlterUserStmt);
n->user = $3;
n->options = $5;
$$ = (Node *)n;
- }
+ }
;
/*****************************************************************************
*
*****************************************************************************/
-CreateGroupStmt: CREATE GROUP UserId
- {
+CreateGroupStmt: CREATE GROUP UserId OptGroupList
+ {
CreateGroupStmt *n = makeNode(CreateGroupStmt);
n->name = $3;
- n->sysid = -1;
- n->initUsers = NIL;
+ n->options = $4;
$$ = (Node *)n;
- }
- | CREATE GROUP UserId WITH users_in_new_group_clause
- {
+ }
+ | CREATE GROUP UserId WITH OptGroupList
+ {
CreateGroupStmt *n = makeNode(CreateGroupStmt);
n->name = $3;
- n->sysid = -1;
- n->initUsers = $5;
+ n->options = $5;
$$ = (Node *)n;
+ }
+ ;
+
+/*
+ * Options for CREATE GROUP
+ */
+OptGroupList: OptGroupList OptGroupElem { $$ = lappend($1, $2); }
+ | /* EMPTY */ { $$ = NIL; }
+ ;
+
+OptGroupElem: USER user_list
+ {
+ $$ = makeNode(DefElem);
+ $$->defname = "userElts";
+ $$->arg = (Node *)$2;
}
- | CREATE GROUP UserId WITH SYSID Iconst users_in_new_group_clause
+ | SYSID Iconst
{
- CreateGroupStmt *n = makeNode(CreateGroupStmt);
- n->name = $3;
- n->sysid = $6;
- n->initUsers = $7;
- $$ = (Node *)n;
+ $$ = makeNode(DefElem);
+ $$->defname = "sysid";
+ $$->arg = (Node *)makeInteger($2);
}
- ;
+ ;
-users_in_new_group_clause: USER user_list { $$ = $2; }
- | /* EMPTY */ { $$ = NIL; }
- ;
/*****************************************************************************
*
{
AlterGroupStmt *n = makeNode(AlterGroupStmt);
n->name = $3;
- n->sysid = -1;
n->action = +1;
n->listUsers = $6;
$$ = (Node *)n;
{
AlterGroupStmt *n = makeNode(AlterGroupStmt);
n->name = $3;
- n->sysid = -1;
n->action = -1;
n->listUsers = $6;
$$ = (Node *)n;
}
;
+
/*****************************************************************************
*
* Drop a postgresql group
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: parsenodes.h,v 1.134 2001/07/10 22:09:29 tgl Exp $
+ * $Id: parsenodes.h,v 1.135 2001/07/12 18:03:00 tgl Exp $
*
*-------------------------------------------------------------------------
*/
{
NodeTag type;
char *name; /* name of the new group */
- int sysid; /* group id (-1 if pick default) */
- List *initUsers; /* list of initial users */
+ List *options; /* List of DefElem nodes */
} CreateGroupStmt;
typedef struct AlterGroupStmt
NodeTag type;
char *name; /* name of group to alter */
int action; /* +1 = add, -1 = drop user */
- int sysid; /* sysid change */
List *listUsers; /* list of users to add/drop */
} AlterGroupStmt;
%type <str> select_clause opt_select_limit select_limit_value ConstraintTimeSpec
%type <str> select_offset_value ReindexStmt join_type opt_boolean
%type <str> join_qual update_list AlterSchemaStmt joined_table
-%type <str> opt_level opt_lock lock_type users_in_new_group_clause
+%type <str> opt_level opt_lock lock_type OptGroupList OptGroupElem
%type <str> OptConstrFromTable comment_op OptTempTableName StringConst
%type <str> constraints_set_list constraints_set_namelist comment_fn
%type <str> constraints_set_mode comment_type comment_cl comment_ag
*
*
****************************************************************************/
-CreateGroupStmt: CREATE GROUP UserId
+CreateGroupStmt: CREATE GROUP UserId OptGroupList
{
- $$ = cat2_str(make_str("create group"), $3);
+ $$ = cat_str(3, make_str("create group"), $3, $4);
}
- | CREATE GROUP UserId WITH users_in_new_group_clause
+ | CREATE GROUP UserId WITH OptGroupList
{
$$ = cat_str(4, make_str("create group"), $3, make_str("with"), $5);
}
- | CREATE GROUP UserId WITH SYSID Iconst users_in_new_group_clause
+ ;
+
+/*
+ * Options for CREATE GROUP
+ */
+OptGroupList: OptGroupList OptGroupElem { $$ = cat2_str($1, $2); }
+ | /* EMPTY */ { $$ = EMPTY; }
+ ;
+
+OptGroupElem: USER user_list
+ {
+ $$ = cat2_str(make_str("user"), $2);
+ }
+ | SYSID Iconst
{
- $$ = cat_str(5, make_str("create group"), $3, make_str("with sysid"), $6, $7);
+ $$ = cat2_str(make_str("sysid"), $2);
}
- ;
-
-users_in_new_group_clause: USER user_list { $$ = cat2_str(make_str("user"), $2); }
- | /* EMPTY */ { $$ = EMPTY; }
- ;
+ ;
/*****************************************************************************
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