Hmm, that looks like it should work to me. What version of Spark? What is the schema of goods?
On Thu, Oct 8, 2015 at 6:13 AM, Maheshakya Wijewardena <mahesha...@wso2.com> wrote: > 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 > > >
