From b105324f7e8632c8f392f2f977c43d2d695539d3 Mon Sep 17 00:00:00 2001
From: "Thomas G. Lockhart" <lockhart@fourpalms.org>
Date: Fri, 26 Sep 1997 15:09:11 +0000
Subject: [PATCH] Fix SUBSTRING(str FROM int TO int) parsing.
---
src/backend/parser/gram.y | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index d8822bdebc5..90afc5349ab 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 1.51 1997/09/25 14:11:42 thomas Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.52 1997/09/26 15:09:11 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -2938,9 +2938,7 @@ position_expr: attr opt_indirection
substr_list: expr_list substr_from substr_for
{
- $$ = $1;
- if ($2 != NULL) $$ = lappend($$, $2);
- if ($3 != NULL) $$ = lappend($$, $3);
+ $$ = nconc(nconc($1,$2),$3);
}
| /* EMPTY */
{ $$ = NIL; }
@@ -2949,7 +2947,12 @@ substr_list: expr_list substr_from substr_for
substr_from: FROM expr_list
{ $$ = $2; }
| /* EMPTY */
- { $$ = NIL; }
+ {
+ A_Const *n = makeNode(A_Const);
+ n->val.type = T_Integer;
+ n->val.val.ival = 1;
+ $$ = lcons((Node *)n,NIL);
+ }
;
substr_for: FOR expr_list
--
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