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https://issues.apache.org/jira/browse/FLINK-31751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jackylau closed FLINK-31751.
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Resolution: Not A Problem
> array return type SpecificTypeStrategies.ARRAY and ifThenElse return type is
> not correct
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-31751
> URL: https://issues.apache.org/jira/browse/FLINK-31751
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Affects Versions: 1.18.0
> Reporter: jackylau
> Priority: Major
> Fix For: 1.18.0
>
>
> like array return type
> Type strategy that returns a \{@link DataTypes#ARRAY(DataType)} with element
> type equal to the type of the first argument, which is not equals calcite
> semantic.
> for example
> {code:java}
> ARRAY<BIGINT NOT NULL> and ARRAY<BIGINT> NOT NULL
> it should return ARRAY<BIGINT> instead of ARRAY<BIGINT NOT NULL>{code}
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