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https://issues.apache.org/jira/browse/CALCITE-5862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ran Tao updated CALCITE-5862:
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Summary: Incorrect semantics of ARRAY function(Spark library) when elements
have Numeric and Character types (was: Incorrect semantics of array function
when elements have Numeric and Character types (enabled in Spark Library))
> Incorrect semantics of ARRAY function(Spark library) when elements have
> Numeric and Character types
> ---------------------------------------------------------------------------------------------------
>
> Key: CALCITE-5862
> URL: https://issues.apache.org/jira/browse/CALCITE-5862
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.34.0
> Reporter: Ran Tao
> Assignee: Ran Tao
> Priority: Major
> Labels: pull-request-available
>
> when run select array(1, 2, 'Hi')
> spark-sql (default)> select array(1, 2, 'Hi');
> ["1","2","Hi"]
> and calcite will cause {*}java.lang.NullPointerException: inferred array
> element type{*}.
> Spark supports both character and numeric types in the array, and the return
> type is character.
> In fact, calcite also allows both character and numeric types to exist in the
> operand type checker, but there is no corresponding processing logic in the
> return type inference, so an error is reported.
> We should fix this bug.
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