Data Quality statement or SQL query for empty columns

Hello

According to the document below you could use ColumnLength to check if a column is not empty by checking if col length is greater than 0. Eg: ColumnLength "Postal_Code" > 0 https://docs.aws.amazon.com/glue/latest/dg/dqdl.html#dqdl-rule-types-ColumnLength

For not null you could use a custom sql as the example below: CustomSql "select Name from primary where Age IS NOT NULL" https://docs.aws.amazon.com/glue/latest/dg/dqdl.html#dqdl-rule-types-CustomSql