[ https://issues.apache.org/jira/browse/PIG-1243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich reassigned PIG-1243: ----------------------------------- Assignee: Richard Ding Richard, could you please take a look at what the issue is and whether there are workaround > Passing Complex map types to and from streaming causes a problem > ---------------------------------------------------------------- > > Key: PIG-1243 > URL: https://issues.apache.org/jira/browse/PIG-1243 > Project: Pig > Issue Type: Bug > Affects Versions: 0.6.0 > Reporter: Viraj Bhat > Assignee: Richard Ding > Fix For: 0.7.0 > > > I have a program which generates different types of Maps fields and stores it > into PigStorage. > {code} > A = load '/user/viraj/three.txt' using PigStorage(); > B = foreach A generate ['a'#'12'] as b:map[], ['b'#['c'#'12']] as c, > ['c'#{(['d'#'15']),(['e'#'16'])}] as d; > store B into '/user/viraj/pigtest' using PigStorage(); > {code} > Now I test the previous output in the below script to make sure I have the > right results. I also pass this data to a Perl script and I observe that the > complex Map types I have generated, are lost when I get the result back. > {code} > DEFINE CMD `simple.pl` SHIP('simple.pl'); > A = load '/user/viraj/pigtest' using PigStorage() as (simpleFields, > mapFields, mapListFields); > B = foreach A generate $0, $1, $2; > dump B; > C = foreach A generate (chararray)simpleFields#'a' as value, $0,$1,$2; > D = stream C through CMD as (a0:map[], a1:map[], a2:map[]); > dump D; > {code} > dumping B results in: > ([a#12],[b#[c#12]],[c#{([d#15]),([e#16])}]) > ([a#12],[b#[c#12]],[c#{([d#15]),([e#16])}]) > ([a#12],[b#[c#12]],[c#{([d#15]),([e#16])}]) > dumping D results in: > ([a#12],,) > ([a#12],,) > ([a#12],,) > The Perl script used here is: > {code} > #!/usr/local/bin/perl > use warnings; > use strict; > while(<>) { > my($bc,$s,$m,$l)=split/\t/; > print("$s\t$m\t$l"); > } > {code} > Is there an issue with handling of complex Map fields within streaming? How > can I fix this to obtain the right result? > Viraj -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.