Good Day in a report I have a dataset with a query of this sort: SELECT stuff FROM table WHERE $X{IN, column, dm_parameter} I have sucessfully used similar queries on a MSSQL database with the exact same WHERE clause. I created a PostgreSQL datasource and run other queries on it successfully. But when I run this query it returnes ALL rows, as if the WHERE condition would not exist. The dm_parameter is of Class java.util.ArrayList. Any ideas what I am doing wrong or how to troubelshoot it? Thank you