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Postgres FD Implementation
Commit 3284758a authored by Tom Lane's avatar Tom Lane
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Remove grammar restrictions on order of optional clauses in CREATE GROUP. 

From Vince Vielhaber.
parent 5c4d1398
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Inline Side-by-side
Showing with 126 additions and 81 deletions
doc/src/sgml/ref/create_group.sgml
View file @ 3284758a
<!--
$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
-->
......@@ -23,10 +23,12 @@ 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">
......
src/backend/commands/user.c
View file @ 3284758a
......@@ -6,7 +6,7 @@
* 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 $
*
*-------------------------------------------------------------------------
*/
......@@ -787,13 +787,47 @@ CreateGroup(CreateGroupStmt *stmt)
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.
......@@ -819,8 +853,8 @@ CreateGroup(CreateGroupStmt *stmt)
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 */
......@@ -835,19 +869,19 @@ CreateGroup(CreateGroupStmt *stmt)
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 */
......@@ -872,14 +906,12 @@ CreateGroup(CreateGroupStmt *stmt)
/*
* 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] = ' ';
......@@ -952,7 +984,7 @@ AlterGroup(AlterGroupStmt *stmt, const char *tag)
char new_record_nulls[Natts_pg_group];
ArrayType *newarray,
*oldarray;
List *newlist = NULL,
List *newlist = NIL,
*item;
HeapTuple tuple;
bool null = false;
......@@ -976,7 +1008,7 @@ AlterGroup(AlterGroupStmt *stmt, const char *tag)
v = makeInteger(arrval);
/* filter out duplicates */
if (!member(v, newlist))
newlist = lcons(v, newlist);
newlist = lappend(newlist, v);
}
/*
......@@ -1007,7 +1039,7 @@ AlterGroup(AlterGroupStmt *stmt, const char *tag)
}
if (!member(v, newlist))
newlist = lcons(v, newlist);
newlist = lappend(newlist, v);
else
/*
* we silently assume here that this error will only come
......@@ -1074,7 +1106,7 @@ AlterGroup(AlterGroupStmt *stmt, const char *tag)
char new_record_nulls[Natts_pg_group];
ArrayType *oldarray,
*newarray;
List *newlist = NULL,
List *newlist = NIL,
*item;
int i;
......@@ -1094,7 +1126,7 @@ AlterGroup(AlterGroupStmt *stmt, const char *tag)
v = makeInteger(arrval);
/* filter out duplicates */
if (!member(v, newlist))
newlist = lcons(v, newlist);
newlist = lappend(newlist, v);
}
/*
......
src/backend/nodes/copyfuncs.c
View file @ 3284758a
......@@ -15,7 +15,7 @@
* 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 $
*
*-------------------------------------------------------------------------
*/
......@@ -2462,8 +2462,7 @@ _copyCreateGroupStmt(CreateGroupStmt *from)
if (from->name)
newnode->name = pstrdup(from->name);
newnode->sysid = from->sysid;
Node_Copy(from, newnode, initUsers);
Node_Copy(from, newnode, options);
return newnode;
}
......@@ -2476,7 +2475,6 @@ _copyAlterGroupStmt(AlterGroupStmt *from)
if (from->name)
newnode->name = pstrdup(from->name);
newnode->action = from->action;
newnode->sysid = from->sysid;
Node_Copy(from, newnode, listUsers);
return newnode;
......
src/backend/nodes/equalfuncs.c
View file @ 3284758a
......@@ -20,7 +20,7 @@
* 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 $
*
*-------------------------------------------------------------------------
*/
......@@ -1320,9 +1320,7 @@ _equalCreateGroupStmt(CreateGroupStmt *a, CreateGroupStmt *b)
{
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;
......@@ -1335,8 +1333,6 @@ _equalAlterGroupStmt(AlterGroupStmt *a, AlterGroupStmt *b)
return false;
if (a->action != b->action)
return false;
if (a->sysid != b->sysid)
return false;
if (!equal(a->listUsers, b->listUsers))
return false;
......
src/backend/parser/gram.y
View file @ 3284758a
......@@ -11,7 +11,7 @@
*
*
* 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
......@@ -155,7 +155,10 @@ static void doNegateFloat(Value *v);
%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
......@@ -618,36 +621,44 @@ user_list: user_list ',' UserId
*
*****************************************************************************/
CreateGroupStmt: CREATE GROUP UserId
{
CreateGroupStmt *n = makeNode(CreateGroupStmt);
n->name = $3;
n->sysid = -1;
n->initUsers = NIL;
$$ = (Node *)n;
}
| CREATE GROUP UserId WITH users_in_new_group_clause
CreateGroupStmt: CREATE GROUP UserId OptGroupList
{
CreateGroupStmt *n = makeNode(CreateGroupStmt);
n->name = $3;
n->sysid = -1;
n->initUsers = $5;
n->options = $4;
$$ = (Node *)n;
}
| CREATE GROUP UserId WITH SYSID Iconst users_in_new_group_clause
| CREATE GROUP UserId WITH OptGroupList
{
CreateGroupStmt *n = makeNode(CreateGroupStmt);
n->name = $3;
n->sysid = $6;
n->initUsers = $7;
n->options = $5;
$$ = (Node *)n;
}
;
users_in_new_group_clause: USER user_list { $$ = $2; }
/*
* Options for CREATE GROUP
*/
OptGroupList: OptGroupList OptGroupElem { $$ = lappend($1, $2); }
| /* EMPTY */ { $$ = NIL; }
;
OptGroupElem: USER user_list
{
$$ = makeNode(DefElem);
$$->defname = "userElts";
$$->arg = (Node *)$2;
}
| SYSID Iconst
{
$$ = makeNode(DefElem);
$$->defname = "sysid";
$$->arg = (Node *)makeInteger($2);
}
;
/*****************************************************************************
*
* Alter a postgresql group
......@@ -659,7 +670,6 @@ AlterGroupStmt: ALTER GROUP UserId ADD USER user_list
{
AlterGroupStmt *n = makeNode(AlterGroupStmt);
n->name = $3;
n->sysid = -1;
n->action = +1;
n->listUsers = $6;
$$ = (Node *)n;
......@@ -668,13 +678,13 @@ AlterGroupStmt: ALTER GROUP UserId ADD USER user_list
{
AlterGroupStmt *n = makeNode(AlterGroupStmt);
n->name = $3;
n->sysid = -1;
n->action = -1;
n->listUsers = $6;
$$ = (Node *)n;
}
;
/*****************************************************************************
*
* Drop a postgresql group
......
src/include/nodes/parsenodes.h
View file @ 3284758a
......@@ -7,7 +7,7 @@
* 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 $
*
*-------------------------------------------------------------------------
*/
......@@ -365,8 +365,7 @@ typedef struct CreateGroupStmt
{
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
......@@ -374,7 +373,6 @@ 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;
......
src/interfaces/ecpg/preproc/preproc.y
View file @ 3284758a
......@@ -331,7 +331,7 @@ make_name(void)
%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
......@@ -691,24 +691,33 @@ user_list: user_list ',' UserId
*
*
****************************************************************************/
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
{
$$ = cat_str(4, make_str("create group"), $3, make_str("with"), $5);
}
| CREATE GROUP UserId WITH SYSID Iconst users_in_new_group_clause
{
$$ = cat_str(5, make_str("create group"), $3, make_str("with sysid"), $6, $7);
}
;
users_in_new_group_clause: USER user_list { $$ = cat2_str(make_str("user"), $2); }
/*
* Options for CREATE GROUP
*/
OptGroupList: OptGroupList OptGroupElem { $$ = cat2_str($1, $2); }
| /* EMPTY */ { $$ = EMPTY; }
;
OptGroupElem: USER user_list
{
$$ = cat2_str(make_str("user"), $2);
}
| SYSID Iconst
{
$$ = cat2_str(make_str("sysid"), $2);
}
;
/*****************************************************************************
*
......
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