*

*

* IDENTIFICATION

* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.54 1997/10/09 05:00:54 thomas Exp $

* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.55 1997/10/09 05:35:30 thomas Exp $

*

* HISTORY

* AUTHORDATEMAJOR EVENT

* Allow the following parsing categories:

* - strings which are not keywords (Id)

* - some explicit SQL/92 data types (e.g. DOUBLE PRECISION)

* -TIME as an SQL/92 non-reserved word, but parser keyword

* -TYPE as an SQL/92 non-reserved word, but parser keyword

* - other date/time strings (e.g. YEAR)

* - thomas 1997-10-08

*/

txname: Id{ $$ = $1; }

| DateTime{ $$ = $1; }

| TIME{ $$ = xlateSqlType("time"); }

| TYPE_P{ $$ = xlateSqlType("type"); }

| INTERVAL interval_opts{ $$ = xlateSqlType("interval"); }

| CHARACTER char_type{ $$ = $2; }

| DOUBLE PRECISION{ $$ = xlateSqlType("float8"); }

name: Id{ $$ = $1; }

| DateTime{ $$ = $1; }

| TIME{ $$ = xlateSqlType("time"); }

| TYPE_P{ $$ = xlateSqlType("type"); }

;

date:Sconst{ $$ = $1; };

/* Column identifier (also used for table identifier)

* Allow date/time names ("year", etc.) (SQL/92 extension).

* AllowTIME (SQL/92 non-reserved word).

* AllowTYPE (SQL/92 non-reserved word).

* - thomas 1997-10-08

*/

ColId:Id{ $$ = $1; }

| DateTime{ $$ = $1; }

| TIME{ $$ = "time"; }

| TYPE_P{ $$ = "type"; }

;

SpecialRuleRelation: CURRENT