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https://issues.apache.org/jira/browse/HIVE-12968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15125304#comment-15125304
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Jesus Camacho Rodriguez commented on HIVE-12968:
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I will add support for folding _is not null_ if there is a BETWEEN clause in
HIVE-12543; thus, we would fold this in the Calcite side.
> genNotNullFilterForJoinSourcePlan: needs to merge predicates into the
> multi-AND
> -------------------------------------------------------------------------------
>
> Key: HIVE-12968
> URL: https://issues.apache.org/jira/browse/HIVE-12968
> Project: Hive
> Issue Type: Improvement
> Components: Logical Optimizer
> Affects Versions: 2.1.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Minor
> Attachments: HIVE-12968.1.patch
>
>
> {code}
> predicate: ((cbigint is not null and cint is not null) and cint BETWEEN
> 1000000 AND 3000000) (type: boolean)
> {code}
> does not fold the IS_NULL on cint, because of the structure of the AND clause.
> For example, see {{tez_dynpart_hashjoin_1.q}}
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