Suggest if OP is aware of jython implementation, his question is resolved. Sent from my iPhone
On Sep 4, 2013, at 9:40 AM, Something Something <mailinglist...@gmail.com> wrote: > 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 > <serega.shey...@gmail.com>wrote: > >> Use simple jython UDF. Its 3 lines of code >> 04.09.2013 18:04 пользователь "Sajid Raza" <windcl...@gmail.com> 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 < >> mailinglist...@gmail.com> >>> wrote: >>> >>>> What if you've 10 fields? >>>> >>>> >>>> On Wed, Sep 4, 2013 at 4:30 AM, Ruslan Al-Fakikh <metarus...@gmail.com >>>> 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 < >>>>> mailinglist...@gmail.com> 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. >>
