SQLBindCol fails with error 07009

When trying to bind a column to a statement which was previously executed via SQLExecDirect, SQLBindCol fails with 07009 - Invalid descriptor index.

According to the MSDN ODBC documentation (see hhttp://msdn.microsoft.com/en-us/library/ms711010%28v=vs.85%29.aspx) an error should be returned only, if the last executed statement produced an result set.

Suggested fix:

  if ((ColumnNumber < 1 && Stmt->Options.UseBookmarks == SQL_UB_OFF) || 

      (mysql_stmt_field_count(Stmt->stmt) &&

       Stmt->stmt->state > MYSQL_STMT_PREPARED && 

       ColumnNumber > mysql_stmt_field_count(Stmt->stmt)))

  {

    MADB_SetError(&Stmt->Error, MADB_ERR_07009, NULL, 0);

    return SQL_ERROR;

  }