Allow extract() to accept the same field selectors as date_part(), not just

the ones specified by SQL.

diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 4066bff9b2e9efe8f2714f978a5510e7f3fa5d5f..7908cec825fc09140b7d8f8fca508d93827312a2 100644 (file)
--- 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 2.220 2001/02/09 03:26:28 tgl Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.221 2001/02/18 18:06:10 petere Exp $
  *
  * HISTORY
  *   AUTHOR            DATE            MAJOR EVENT
@@ -4987,6 +4987,7 @@ extract_list:  extract_arg FROM a_expr
        ;
 
 extract_arg:  datetime                     { $$ = $1; }
+       | IDENT                     { $$ = $1; }
        | TIMEZONE_HOUR                     { $$ = "tz_hour"; }
        | TIMEZONE_MINUTE                   { $$ = "tz_minute"; }
        ;