*

*

* IDENTIFICATION

* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.82 1999/05/21 18:31:06 momjian Exp $

* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.83 1999/05/22 05:06:43 momjian Exp $

*

* HISTORY

* AUTHORDATEMAJOR EVENT

%leftUNION INTERSECT EXCEPT

%%

stmtblock: stmtmulti

stmtblock: stmtmulti opt_semi

{ parsetree = $1; }

| stmt

{ parsetree = lcons($1,NIL); }

;

stmtmulti: stmtmulti stmt ';'

{ $$ = lappend($1, $2); }

/***S*I***/

/* We comment the next rule because it seems to be redundant

* and produces 16 shift/reduce conflicts with the new SelectStmt rule

* needed for EXCEPT and INTERSECTS. So far I did not notice any

* violations by removing the rule! */

/* | stmtmulti stmt

{ $$ = lappend($1, $2); } */

| stmt ';'

stmtmulti: stmtmulti ';' stmt

{ $$ = lappend($1, $3); }

| stmt

{ $$ = lcons($1,NIL); }

;

opt_semi:';'

|/*EMPTY*/

;

stmt : AddAttrStmt

| AlterUserStmt

| ClosePortalStmt