[
https://issues.apache.org/jira/browse/PIG-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Thejas M Nair updated PIG-2139:
-------------------------------
Attachment: PIG-2139.1.patch
unit tests and test-patch passed with PIG-2139.1.patch. It also fixes a NPE
issue seen in LogicalExpressionSimplifier when optimization runs on udfs with
no arguments.
> LogicalExpressionSimplifier optimizer rule should check if udf is
> deterministic while checking if they are equal
> ----------------------------------------------------------------------------------------------------------------
>
> Key: PIG-2139
> URL: https://issues.apache.org/jira/browse/PIG-2139
> Project: Pig
> Issue Type: Bug
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Fix For: 0.10
>
> Attachments: PIG-2139.1.patch
>
>
> LogicalExpressionSimplifier simplifies filter expressions. In the process, it
> compares udfs to see if they are 'equal' (ie expected to produce same
> results). But it does not check if the udfs are annotated as
> @Nondeterministic. If such an annotation exists, then the udfs should not be
> considered equal. UserFuncition.isEqual() is being used to compare the udfs.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
