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Parser cleanup for expr and subqueries.

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This commit is contained in:
Bruce Momjian
1998-02-03 01:53:24 +00:00
parent eb348bf41c
commit c18ed2f5a7
3 changed files with 15 additions and 4 deletions
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12
src/backend/parser/gram.y
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.100 1998/02/01 19:43:34 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.101 1998/02/03 01:53:14 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -3330,6 +3330,16 @@ a_expr: attr opt_indirection
n->subselect = $5;
$$ = (Node *)n;
}
| a_expr Op '(' SubSelect ')'
{
SubLink *n = makeNode(SubLink);
n->lefthand = lcons($1, NULL);
n->oper = lcons($2,NIL);
n->useor = false;
n->subLinkType = ALL_SUBLINK;
n->subselect = $4;
$$ = (Node *)n;
}
| a_expr AND a_expr
{ $$ = makeA_Expr(AND, NULL, $1, $3); }
| a_expr OR a_expr

4
src/backend/parser/parse_expr.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.14 1998/02/01 22:20:39 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.15 1998/02/03 01:53:16 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -101,7 +101,7 @@ transformExpr(ParseState *pstate, Node *expr, int precedence)
Value *val = &con->val;
if (con->typename != NULL)
result = parser_typecast(val, con->typename, 0);
result = parser_typecast(val, con->typename, -1);
else
result = (Node *) make_const(val);
break;