After 'load' can you use 'Define' to give alias? That's a guess. On Dec 3, 2013, at 12:22 PM, Benoit Mathieu <b...@deezer.com> wrote:
> Aida, > > Your suggestion don't work. Pig throws the same error, because lt is a > reserved word, so you can't use it as a field name, even in a FOREACH > statement. > > I would like to write something like: > B = FOREACH A GENERATE `lt`; > or > B = FOREACH A GENERATE \lt; > > so that Pig will interpret lt as a field identifier, but those statement > are incorrect. Is there any solution ? > > ++ > Benoit > > > > > Benoit Mathieu > Lead Software Engineer, Data > skype: bmat06 > > > > 2013/12/3 Aida Mashkouri Najafi <a...@infectiousmedia.com> > >> Just rename your column locally in your code. >> >> You can regenerate you column names and rename them by >> >> e.g. >> >> FOREACH A GENERATE It as 'new_name', the rest of columns you like to call. >> >> Just rename it temporary to skip the error. >> >> >> On 3 December 2013 16:09, Benoit Mathieu <b...@deezer.com> wrote: >> >>> Hello, >>> >>> Is there any way to escape field names so that Pig do not throw an error >>> when field name is a reserved keyword ? >>> >>> Here is my script: >>> A = LOAD 'logs.stream5' USING org.apache.hcatalog.pig.HCatLoader(); >>> B = FILTER A BY lt>120; >>> DUMP B; >>> >>> Pig throws an ERROR because "lt" is a reserved keyword. >>> It's annoying because I can't change this field name, and I don't really >>> want to use $15 because it will break on future schema changes. >>> Is there any magic syntax ? >>> >>> Thanks for help. >>> >>> Benoit >>> >> >> >> >> -- >> Aida Mashkouri NajafiData Scientist T. +44(0) 20 7775 5625 [image: >> Infectious Media]3-7 Herbal Hill / London / EC1R >> 5EJwww.infectiousmedia.com [image: >> Infectious Media] <http://www.infectiousmedia.com/> [image: >> Facebook]<http://www.facebook.com/infectiousmedia>[image: >> Twitter] <https://twitter.com/infectiousmedia>[image: >> LinkedIn]<http://www.linkedin.com/company/infectious-media-ltd>[image: >> Youtube] <http://www.youtube.com/user/InfectiousMediaLtd> This email >> and >> any attachments are confidential and may also beprivileged. If you are not >> the intended recipient, please notify the senderimmediately, and do not >> disclose the contents to another person, use it forany purpose, or store, >> or copy the information in any medium. Please alsodestroy and delete the >> message from your computer. >>
