Have to_date() call timestamptz_date() per Karel's email instructions.

Thomas G. Lockhart · Thomas G. Lockhart · commit c826d1cefb64 · 2002-01-04T15:49:42.000Z
Fixes time zone problems introduced by Thomas' implementation of
 TIMESTAMP WITHOUT TIME ZONE which caused the behavior of the previously
 appropriate routine, timestamp_date(), to change for the worse in this
 context.
diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
@@ -1,7 +1,7 @@
 /* -----------------------------------------------------------------------
  * formatting.c
  *
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.48 2002/01/02 22:09:23 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.49 2002/01/04 15:49:42 thomas Exp $
  *
  *
  *	 Portions Copyright (c) 1999-2000, PostgreSQL Global Development Group
@@ -3112,7 +3112,7 @@ to_date(PG_FUNCTION_ARGS)
 	 * Quick hack: since our inputs are just like to_timestamp, hand over
 	 * the whole input info struct...
 	 */
-	return DirectFunctionCall1(timestamp_date, to_timestamp(fcinfo));
+	return DirectFunctionCall1(timestamptz_date, to_timestamp(fcinfo));
 }
 
 /**********************************************************************

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`/* -----------------------------------------------------------------------`
`2`	`2`	`* formatting.c`
`3`	`3`	`*`
`4`		`- * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.48 2002/01/02 22:09:23 tgl Exp $`
	`4`	`+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.49 2002/01/04 15:49:42 thomas Exp $`
`5`	`5`	`*`
`6`	`6`	`*`
`7`	`7`	`* Portions Copyright (c) 1999-2000, PostgreSQL Global Development Group`
`@@ -3112,7 +3112,7 @@ to_date(PG_FUNCTION_ARGS)`
`3112`	`3112`	`* Quick hack: since our inputs are just like to_timestamp, hand over`
`3113`	`3113`	`* the whole input info struct...`
`3114`	`3114`	`*/`
`3115`		`- return DirectFunctionCall1(timestamp_date, to_timestamp(fcinfo));`
	`3115`	`+ return DirectFunctionCall1(timestamptz_date, to_timestamp(fcinfo));`
`3116`	`3116`	`}`
`3117`	`3117`
`3118`	`3118`	`/**********************************************************************`