Zebeljan, Nebojsa 2013-12-24, 10:51
Can you parameterize the field name and substitute it depending on the
version of schema?
On Tue, Dec 24, 2013 at 2:51 AM, Zebeljan, Nebojsa <
[EMAIL PROTECTED]> wrote:
> I've added a condition in my pig script which shall use in case A field x
> and in case B field y.
> Something like:
> (Schema.Version == 1 ? Field.x : Field.y) AS SomeField
> The intention was to make my pig script future safe, because with the next
> schema (version != 1) the new "Field.y" is added and shall be used. When I
> run my script on the data with the "current" schema (version=1), I'm
> getting the following exception:
> pig script failed to validate:
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1128: Cannot find
> field y in …
> Unfortunately it looks like pig is validating every field, even if it's
> not used/called?!
> Thanks in advance!