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https://issues.apache.org/jira/browse/HAWQ-1116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shivram Mani closed HAWQ-1116.
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> Enhance HAWQ/PXF Bridge to support isNull and isNotNull
> -------------------------------------------------------
>
> Key: HAWQ-1116
> URL: https://issues.apache.org/jira/browse/HAWQ-1116
> Project: Apache HAWQ
> Issue Type: Sub-task
> Components: PXF
> Reporter: Shivram Mani
> Assignee: Shivram Mani
> Fix For: backlog
>
>
> HAWQ/PXF Bridge must support pushing filters containing isNull and isNotNull
> to PXF as part of the filter expression string
> We will not need any constant value as part of these operators in the filter
> string.
> eg: name is NULL will be represented as <attcode><attvalue><opcode><opvalue>
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