From 73fae67a0df4028386801911f392fe21e9c3340c Mon Sep 17 00:00:00 2001
From: "Thomas G. Lockhart" <lockhart@fourpalms.org>
Date: Mon, 17 Aug 1998 16:08:34 +0000
Subject: [PATCH] Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN
expressions in constraint clauses. IN and NOT IN only allow constaints, not
subselects. Jose' Soares' new reference docs pointed out the discrepency.
Updating the docs too...
---
src/backend/parser/gram.y | 51 ++++++++++++++++++++++++++++++++++++---
1 file changed, 48 insertions(+), 3 deletions(-)
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 6f4854c395b..0e0015f3e49 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.21 1998/08/05 04:49:08 scrappy Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.22 1998/08/17 16:08:34 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -204,7 +204,7 @@ Oid param_type(int t); /* used in parse_expr.c */
a_expr, a_expr_or_null, b_expr, AexprConst,
in_expr, in_expr_nodes, not_in_expr, not_in_expr_nodes,
having_clause
-%type <list> row_descriptor, row_list
+%type <list> row_descriptor, row_list, c_list, c_expr
%type <node> row_expr
%type <str> row_op
%type <ival> sub_type
@@ -1043,7 +1043,9 @@ constraint_expr: AexprConst
| constraint_expr Op constraint_expr
{ $$ = nconc( $1, lcons( makeString( $2), $3)); }
| constraint_expr LIKE constraint_expr
- { $$ = nconc( $1, lcons( makeString( "like"), $3)); }
+ { $$ = nconc( $1, lcons( makeString( "LIKE"), $3)); }
+ | constraint_expr NOT LIKE constraint_expr
+ { $$ = nconc( $1, lcons( makeString( "NOT LIKE"), $4)); }
| constraint_expr AND constraint_expr
{ $$ = nconc( $1, lcons( makeString( "AND"), $3)); }
| constraint_expr OR constraint_expr
@@ -1070,6 +1072,49 @@ constraint_expr: AexprConst
{ $$ = lappend( $1, makeString( "IS NOT TRUE")); }
| constraint_expr IS NOT FALSE_P
{ $$ = lappend( $1, makeString( "IS NOT FALSE")); }
+ | constraint_expr IN '(' c_list ')'
+ {
+ $$ = lappend( $1, makeString("IN"));
+ $$ = lappend( $$, makeString("("));
+ $$ = nconc( $$, $4);
+ $$ = lappend( $$, makeString(")"));
+ }
+ | constraint_expr NOT IN '(' c_list ')'
+ {
+ $$ = lappend( $1, makeString("NOT IN"));
+ $$ = lappend( $$, makeString("("));
+ $$ = nconc( $$, $5);
+ $$ = lappend( $$, makeString(")"));
+ }
+ | constraint_expr BETWEEN c_expr AND c_expr
+ {
+ $$ = lappend( $1, makeString("BETWEEN"));
+ $$ = nconc( $$, $3);
+ $$ = lappend( $$, makeString("AND"));
+ $$ = nconc( $$, $5);
+ }
+ | constraint_expr NOT BETWEEN c_expr AND c_expr
+ {
+ $$ = lappend( $1, makeString("NOT BETWEEN"));
+ $$ = nconc( $$, $4);
+ $$ = lappend( $$, makeString("AND"));
+ $$ = nconc( $$, $6);
+ }
+ ;
+
+c_list: c_list ',' c_expr
+ {
+ $$ = lappend($1, makeString(","));
+ $$ = nconc($$, $3);
+ }
+ | c_expr
+ {
+ $$ = $1;
+ }
+ ;
+
+c_expr: AexprConst
+ { $$ = makeConstantList((A_Const *) $1); }
;
key_match: MATCH FULL { $$ = NULL; }
--
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