From d63571a7f4639155d2dd1ca703a9b720d6e48e16 Mon Sep 17 00:00:00 2001
From: "Thomas G. Lockhart" <lockhart@fourpalms.org>
Date: Tue, 1 May 2001 01:36:10 +0000
Subject: [PATCH] Allow a string argument to the EXTRACT() function. This is
an extension to the SQL9x standard, but is consistant with usage of the
underlying date_part() function used to implement it. Example:
EXTRACT('YEAR',...) No impact on regression tests.
---
src/backend/parser/gram.y | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 7908cec825f..bed0ce239a4 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.221 2001/02/18 18:06:10 petere Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.222 2001/05/01 01:36:10 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -4986,8 +4986,13 @@ extract_list: extract_arg FROM a_expr
{ $$ = NIL; }
;
+/* Allow delimited string SCONST in extract_arg as an SQL extension.
+ * - thomas 2001-04-12
+ */
+
extract_arg: datetime { $$ = $1; }
- | IDENT { $$ = $1; }
+ | SCONST { $$ = $1; }
+ | IDENT { $$ = $1; }
| TIMEZONE_HOUR { $$ = "tz_hour"; }
| TIMEZONE_MINUTE { $$ = "tz_minute"; }
;
--
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