Looks like a minor cut-n-paste error. Patch inlined:
Index: lib/DBI/Const/GetInfo/ODBC.pm
===================================================================
--- lib/DBI/Const/GetInfo/ODBC.pm (revision 11363)
+++ lib/DBI/Const/GetInfo/ODBC.pm (working copy)
@@ -543,9 +543,6 @@
SQL_AM_NONE => 0
, SQL_AM_CONNECTION => 1
, SQL_AM_STATEMENT => 2
-, SQL_AM_NONE => 0
-, SQL_AM_CONNECTION => 1
-, SQL_AM_STATEMENT => 2
};
$ReturnValues{SQL_ATTR_MAX_ROWS} =
{
