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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2011/01/19 01:00:43 UTC
[jira] Updated: (PIG-1808) Error message in 0.8 not much helpful as
compared to 0.7
[ https://issues.apache.org/jira/browse/PIG-1808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1808:
----------------------------
Attachment: PIG-1808-1.patch
This happens when we don't have a schema for join.
> Error message in 0.8 not much helpful as compared to 0.7
> --------------------------------------------------------
>
> Key: PIG-1808
> URL: https://issues.apache.org/jira/browse/PIG-1808
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: Vivek Padmanabhan
> Priority: Minor
> Attachments: PIG-1808-1.patch
>
>
> A = LOAD 'i1' ;
> B = LOAD 'i2' ;
> C = JOIN A by $92 left outer,B by $92 ;
> D = filter C by $100 is null;
> DUMP D;
> The below script fails both in 0.7 and 0.8 since A requires a valid schema to be defined. But the error message in 0.8 is not helpful.
> Error message in 0.8
> -----------------------------
> ERROR 2000: Error processing rule PushUpFilter. Try -t PushUpFilter
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias D
> ....
> Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 2042: Error in new logical plan. Try -Dpig.usenewlogicalplan=false.
> ....
> Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 2000: Error processing rule PushUpFilter. Try -t PushUpFilter
> ....
> Caused by: java.lang.NullPointerException
> at org.apache.pig.newplan.logical.rules.PushUpFilter$PushUpFilterTransformer.hasAll(PushUpFilter.java:308)
> at org.apache.pig.newplan.logical.rules.PushUpFilter$PushUpFilterTransformer.check(PushUpFilter.java:141)
> at org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:108)
> ... 13 more
> Error message in 0.7
> -----------------------------
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias D
> ....
> ....
> Caused by: org.apache.pig.backend.hadoop.executionengine.physicalLayer.LogicalToPhysicalTranslatorException:
> ERROR 1109: Input (B) on which outer join is desired should have a valid schema
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