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Make PUBLIC an unreserved word (in fact, not a keyword at all), 

per previous discussion.
This commit is contained in:
Tom Lane 2002-04-18 21:16:16 +00:00
parent b3120804ad
commit 87d00363cb
3 changed files with 30 additions and 23 deletions
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22
src/backend/commands/user.c
View File

@ -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 1.95 2002/04/04 04:25:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.96 2002/04/18 21:16:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -153,7 +153,7 @@ write_group_file(Relation urel, Relation grel)
datum = heap_getattr(tuple, Anum_pg_group_groname, dsc, &isnull);
if (isnull)
continue; /* ignore NULL groupnames */
groname = (char *) DatumGetName(datum);
groname = NameStr(*DatumGetName(datum));
grolist_datum = heap_getattr(tuple, Anum_pg_group_grolist, dsc, &isnull);
/* Ignore NULL group lists */
@ -293,7 +293,7 @@ write_user_file(Relation urel)
datum = heap_getattr(tuple, Anum_pg_shadow_usename, dsc, &isnull);
if (isnull)
continue; /* ignore NULL usernames */
usename = (char *) DatumGetName(datum);
usename = NameStr(*DatumGetName(datum));
datum = heap_getattr(tuple, Anum_pg_shadow_passwd, dsc, &isnull);
@ -498,6 +498,10 @@ CreateUser(CreateUserStmt *stmt)
if (!superuser())
elog(ERROR, "CREATE USER: permission denied");
if (strcmp(stmt->user, "public") == 0)
elog(ERROR, "CREATE USER: user name \"%s\" is reserved",
stmt->user);
/*
* Scan the pg_shadow relation to be certain the user or id doesn't
* already exist. Note we secure exclusive lock, because we also need
@ -518,7 +522,7 @@ CreateUser(CreateUserStmt *stmt)
datum = heap_getattr(tuple, Anum_pg_shadow_usename,
pg_shadow_dsc, &null);
Assert(!null);
user_exists = (strcmp((char *) DatumGetName(datum), stmt->user) == 0);
user_exists = (strcmp(NameStr(*DatumGetName(datum)), stmt->user) == 0);
datum = heap_getattr(tuple, Anum_pg_shadow_usesysid,
pg_shadow_dsc, &null);
@ -1027,7 +1031,7 @@ DropUser(DropUserStmt *stmt)
datum = heap_getattr(tmp_tuple, Anum_pg_database_datname,
pg_dsc, &null);
Assert(!null);
dbname = (char *) DatumGetName(datum);
dbname = NameStr(*DatumGetName(datum));
elog(ERROR, "DROP USER: user \"%s\" owns database \"%s\", cannot be removed%s",
user, dbname,
(length(stmt->users) > 1) ? " (no users removed)" : "");
@ -1186,6 +1190,10 @@ CreateGroup(CreateGroupStmt *stmt)
if (!superuser())
elog(ERROR, "CREATE GROUP: permission denied");
if (strcmp(stmt->name, "public") == 0)
elog(ERROR, "CREATE GROUP: group name \"%s\" is reserved",
stmt->name);
pg_group_rel = heap_openr(GroupRelationName, ExclusiveLock);
pg_group_dsc = RelationGetDescr(pg_group_rel);
@ -1200,7 +1208,7 @@ CreateGroup(CreateGroupStmt *stmt)
datum = heap_getattr(tuple, Anum_pg_group_groname,
pg_group_dsc, &null);
Assert(!null);
group_exists = (strcmp((char *) DatumGetName(datum), stmt->name) == 0);
group_exists = (strcmp(NameStr(*DatumGetName(datum)), stmt->name) == 0);
datum = heap_getattr(tuple, Anum_pg_group_grosysid,
pg_group_dsc, &null);
@ -1597,7 +1605,7 @@ DropGroup(DropGroupStmt *stmt)
datum = heap_getattr(tuple, Anum_pg_group_groname,
pg_group_dsc, &null);
if (!null && strcmp((char *) DatumGetName(datum), stmt->name) == 0)
if (!null && strcmp(NameStr(*DatumGetName(datum)), stmt->name) == 0)
{
gro_exists = true;
simple_heap_delete(pg_group_rel, &tuple->t_self);

28
src/backend/parser/gram.y
View File

@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.304 2002/04/18 20:01:09 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.305 2002/04/18 21:16:16 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -330,7 +330,7 @@ static bool set_name_needs_quotes(const char *name);
MATCH, MINUTE_P, MONTH_P, NAMES,
NATIONAL, NATURAL, NCHAR, NEXT, NO, NOT, NULLIF, NULL_P, NUMERIC,
OF, OLD, ON, ONLY, OPTION, OR, ORDER, OUTER_P, OVERLAPS,
PARTIAL, POSITION, PRECISION, PRIMARY, PRIOR, PRIVILEGES, PROCEDURE, PUBLIC,
PARTIAL, POSITION, PRECISION, PRIMARY, PRIOR, PRIVILEGES, PROCEDURE,
READ, REFERENCES, RELATIVE, REVOKE, RIGHT, ROLLBACK,
SCHEMA, SCROLL, SECOND_P, SELECT, SESSION, SESSION_USER, SET, SOME, SUBSTRING,
TABLE, TEMPORARY, THEN, TIME, TIMESTAMP,
@ -2532,25 +2532,26 @@ grantee_list: grantee { $$ = makeList1($1); }
| grantee_list ',' grantee { $$ = lappend($1, $3); }
;
grantee: PUBLIC
grantee: ColId
{
PrivGrantee *n = makeNode(PrivGrantee);
n->username = NULL;
/* This hack lets us avoid reserving PUBLIC as a keyword */
if (strcmp($1, "public") == 0)
n->username = NULL;
else
n->username = $1;
n->groupname = NULL;
$$ = (Node *)n;
}
| GROUP ColId
{
PrivGrantee *n = makeNode(PrivGrantee);
/* Treat GROUP PUBLIC as a synonym for PUBLIC */
if (strcmp($2, "public") == 0)
n->groupname = NULL;
else
n->groupname = $2;
n->username = NULL;
n->groupname = $2;
$$ = (Node *)n;
}
| ColId
{
PrivGrantee *n = makeNode(PrivGrantee);
n->username = $1;
n->groupname = NULL;
$$ = (Node *)n;
}
;
@ -6112,7 +6113,7 @@ unreserved_keyword:
| STATISTICS { $$ = "statistics"; }
| STDIN { $$ = "stdin"; }
| STDOUT { $$ = "stdout"; }
| STORAGE { $$ = "storage"; }
| STORAGE { $$ = "storage"; }
| SYSID { $$ = "sysid"; }
| TEMP { $$ = "temp"; }
| TEMPLATE { $$ = "template"; }
@ -6205,7 +6206,6 @@ func_name_keyword:
| NOTNULL { $$ = "notnull"; }
| OUTER_P { $$ = "outer"; }
| OVERLAPS { $$ = "overlaps"; }
| PUBLIC { $$ = "public"; }
| RIGHT { $$ = "right"; }
| VERBOSE { $$ = "verbose"; }
;

3
src/backend/parser/keywords.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.104 2002/03/19 02:18:19 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.105 2002/04/18 21:16:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -211,7 +211,6 @@ static ScanKeyword ScanKeywords[] = {
{"privileges", PRIVILEGES},
{"procedural", PROCEDURAL},
{"procedure", PROCEDURE},
{"public", PUBLIC},
{"read", READ},
{"references", REFERENCES},
{"reindex", REINDEX},