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https://issues.apache.org/jira/browse/PIG-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864579#action_12864579
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Richard Ding commented on PIG-1345:
-----------------------------------
By default, the Pig property "aggregate.warning" is set to true. So in the
above example, you only get aggregated warning messages, not the original
detailed warning messages. You can turn off "aggregate.warning" by the command
line switch -w. The detailed warning messages contain more information. Here is
an example:
{code}
[main] WARN org.apache.pig.PigServer - int is implicitly cast to float under
LOAdd Operator
[main] WARN org.apache.pig.PigServer - long is implicitly cast to float under
LOAdd Operator
{code}
instead of
{code}
[main] WARN org.apache.pig.PigServer - Encountered Warning
IMPLICIT_CAST_TO_FLOAT 2 time(s).
{code}
> Link casting errors in POCast to actual lines numbers in Pig script
> -------------------------------------------------------------------
>
> Key: PIG-1345
> URL: https://issues.apache.org/jira/browse/PIG-1345
> Project: Pig
> Issue Type: Sub-task
> Components: impl
> Affects Versions: 0.6.0
> Reporter: Viraj Bhat
>
> For the purpose of easy debugging, I would be nice to find out where my
> warnings are coming from is in the pig script.
> The only known process is to comment out lines in the Pig script and see if
> these warnings go away.
> 2010-01-13 21:34:13,697 [main] WARN org.apache.pig.PigServer - Encountered
> Warning IMPLICIT_CAST_TO_MAP 2 time(s) line 22
> 2010-01-13 21:34:13,698 [main] WARN org.apache.pig.PigServer - Encountered
> Warning IMPLICIT_CAST_TO_LONG 2 time(s) line 23
> 2010-01-13 21:34:13,698 [main] WARN org.apache.pig.PigServer - Encountered
> Warning IMPLICIT_CAST_TO_BAG 1 time(s). line 26
> I think this may need us to keep track of the line numbers of the Pig script
> (via out javacc parser) and maintain it in the logical and physical plan.
> It would help users in debugging simple errors/warning related to casting.
> Is this enhancement listed in the http://wiki.apache.org/pig/PigJournal?
> Do we need to change the parser to something other than javacc to make this
> task simpler?
> "Standardize on Parser and Scanner Technology"
> Viraj
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