*

*

* IDENTIFICATION

* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.53 1997/09/29 05:58:12 vadim Exp $

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

*

* HISTORY

* AUTHORDATEMAJOR EVENT

/*

* typname handles types without trailing parens for size specification.

* Typename uses either typname or explicit txname(size).

* So, must handlefloat in both places. - thomas 1997-09-20

* So, must handleFLOAT in both places. - thomas 1997-09-20

*/

typname: txname

{

char *tname;

}

;

/* Type names

* 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

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

* - thomas 1997-10-08

*/

txname: Id{ $$ = $1; }

| DateTime{ $$ = $1; }

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

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

| CHARACTER char_type{ $$ = $2; }

index_name:Id{ $$ = $1; };

name: Id{ $$ = $1; }

| DateTime{ $$ = $1; }

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

;

Id: IDENT{ $$ = $1; };

/* Column identifier (also used for table identifier)

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

* Allow TIME (SQL/92 non-reserved word).

* - thomas 1997-10-08

*/

ColId:Id{ $$ = $1; }

| DateTime{ $$ = $1; }

| TIME{ $$ = "time"; }

;

SpecialRuleRelation: CURRENT