Serega - I think you missed this line: "....I know it will be very (very) easy to write this, but just don't want to create one if one already exists....."
There's a saying, don't code something that's already been coded! "Code Reuse" for the win! Anyway, seems like the simple answer is "NO, this doesn't exist in Piggybank". Thanks. On Wed, Sep 4, 2013 at 9:10 AM, Serega Sheypak <[email protected]>wrote: > Use simple jython UDF. Its 3 lines of code > 04.09.2013 18:04 пользователь "Sajid Raza" <[email protected]> написал: > > > For my two cents' worth I agree, it's nicer to have coalesce than the > > conditional operator. > > > > On Sep 4, 2013, at 8:50 AM, Something Something < > [email protected]> > > wrote: > > > > > What if you've 10 fields? > > > > > > > > > On Wed, Sep 4, 2013 at 4:30 AM, Ruslan Al-Fakikh <[email protected] > > >wrote: > > > > > >> Hi, > > >> > > >> I think you could mimic it with an expression like this: > > >> b = foreach a generate ((field1 is null) ? ((field2 is null) ? null : > > >> field2) : field1); > > >> > > >> Hope that helps, > > >> Ruslan > > >> > > >> > > >> On Wed, Sep 4, 2013 at 9:50 AM, Something Something < > > >> [email protected]> wrote: > > >> > > >>> Is there a UDF in Piggybank (or somewhere) that will mimic > > functionality > > >> of > > >>> the COALESCE function in MySQL: > > >> > > > http://www.w3resource.com/mysql/comparision-functions-and-operators/coalesce-function.php > > >>> > > >>> I know it will be very (very) easy to write this, but just don't want > > to > > >>> create one if one already exists. I looked but couldn't find one. > > >>> > > >>> Please let me know. Thanks. > > >> > > >
