[ https://issues.apache.org/jira/browse/PIG-3434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aniket Mokashi updated PIG-3434: -------------------------------- Fix Version/s: (was: 0.13.0) 0.14.0 > Null subexpression in bincond nullifies outer tuple (or bag) > ------------------------------------------------------------ > > Key: PIG-3434 > URL: https://issues.apache.org/jira/browse/PIG-3434 > Project: Pig > Issue Type: Bug > Affects Versions: 0.11 > Reporter: Pavel Fedyakov > Assignee: Mark Wagner > Fix For: 0.14.0 > > Attachments: PIG-3434.1.patch > > > According to docs, for bincond operator "If a Boolean subexpression results > in null value, the resulting expression is null" > (http://pig.apache.org/docs/r0.11.0/basic.html#nulls). > It works as described in plain foreach..generate expression: > {noformat} > in = load 'in'; > out = FOREACH in GENERATE 1, ($0 > 0 ? 2 : 3); > dump out; > {noformat} > in (3 lines, 2nd is empty): > {noformat} > 0 > 1 > {noformat} > out: > {noformat} > (1,3) > (1,) > (1,2) > {noformat} > But if we wrap generated variables in tuple (or bag), we lose the whole 2nd > line in output: > {noformat} > out = FOREACH in GENERATE (1, ($0 > 0 ? 2 : 3)); > {noformat} > out: > {noformat} > ((1,3)) > () > ((1,2)) > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)