| ERROR | invalid order by column: string |
| CAUSE | the column specified is not valid |
| ACTION | check that the followings are valid: a) column is of supported datatype b) valid table name, column name in the specification. |
| ERROR | invalid order by column: string |
| CAUSE | the column specified is not valid |
| ACTION | check that the followings are valid: a) column is of supported datatype b) valid table name, column name in the specification. |