Hi, Suppose there is data frame called goods with columns "barcode" and "items". Some of the values in the column "items" can be null.
I want to the barcode and the respective items from the table adhering the following rules: - If "items" is null -> output 0 - else -> output "items" ( the actual value in the column) I would write a query like: *SELECT barcode, IF(items is null, 0, items) FROM goods* But this query fails with the error: *unresolved operator 'Project [if (IS NULL items#1) 0 else items#1 AS c0#132]; * It seems I can only use numerical values inside this IF statement, but when a column name is used, it fails. Is there any workaround to do this? Best regards. -- Pruthuvi Maheshakya Wijewardena Software Engineer WSO2 : http://wso2.com/ Email: mahesha...@wso2.com Mobile: +94711228855
