[ https://issues.apache.org/jira/browse/PIG-2378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638711#comment-13638711 ]
Johnny Zhang commented on PIG-2378: ----------------------------------- the work around throw casting exception in trunk right now. Plus, fixing PIG-2244 will close this back door. So looks like we need to make it works. Working on a patch. > macros don't accept references to items within tuples as arguments > ------------------------------------------------------------------ > > Key: PIG-2378 > URL: https://issues.apache.org/jira/browse/PIG-2378 > Project: Pig > Issue Type: Improvement > Affects Versions: 0.9.1 > Reporter: Joseph Adler > Assignee: Johnny Zhang > > I'd like to be able to pass a reference to an item within a parameter to a > Pig Macro. > For example, suppose that I had a relation A with the schema A:{id:long, > header:(time:long, type:chararray)}. I'd like to call a macro by typing: > B = MY_MACRO(A, header.time); > but this does not currently work. Obviously, I could define a new relation as > a workaround, for example I could use some pig code like > AA = FOREACH a GENERATE *, header.time as time; > B = MY_MACRO(AA, time); > But that's ugly and clunky -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira