[
https://issues.apache.org/jira/browse/PIG-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Koji Noguchi updated PIG-2970:
------------------------------
Attachment: pig-2970-trunk-v02.txt
bq. (from PIG-2119) LOGenerate is the only sink in nested plan. This is one of
the basic assumption we made throughout logical plan
Can we revisit this assumption to 'sink in nested plan includes a single
LOGenerate and optional dangling nodes'? Attaching a patch that replaces
foreach.getInnerPlan().getSinks().get(0) to foreach.findGenearate() that I
added. Would something like this work?
> Nested foreach getting incorrect schema when having unrelated inner query
> -------------------------------------------------------------------------
>
> Key: PIG-2970
> URL: https://issues.apache.org/jira/browse/PIG-2970
> Project: Pig
> Issue Type: Bug
> Components: parser
> Affects Versions: 0.10.0
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Minor
> Fix For: 0.11, 0.12
>
> Attachments: pig-2970-trunk-v01.txt, pig-2970-trunk-v02.txt
>
>
> While looking at PIG-2968, hit a weird error message.
> {noformat}
> $ cat -n test/foreach2.pig
> 1 daily = load 'nyse' as (exchange, symbol);
> 2 grpd = group daily by exchange;
> 3 unique = foreach grpd {
> 4 sym = daily.symbol;
> 5 uniq_sym = distinct sym;
> 6 --ignoring uniq_sym result
> 7 generate group, daily;
> 8 };
> 9 describe unique;
> 10 zzz = foreach unique generate group;
> 11 explain zzz;
> % pig -x local -t ColumnMapKeyPrune test/foreach2.pig
> ...
> unique: {symbol: bytearray}
> 2012-10-12 16:55:44,226 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1025:
> <file test/foreach2.pig, line 10, column 30> Invalid field projection.
> Projected field [group] does not exist in schema: symbol:bytearray.
> ...
> {noformat}
--
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
