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https://issues.apache.org/jira/browse/FLINK-40355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18115738#comment-18115738
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Sergey Nuyanzin commented on FLINK-40355:
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Merged as
[4d43dde204ef2fb8586c04adbbe3e7c5525e957a|https://github.com/apache/flink/commit/4d43dde204ef2fb8586c04adbbe3e7c5525e957a]
> Add MAP_CONTAINS_KEY function
> -----------------------------
>
> Key: FLINK-40355
> URL: https://issues.apache.org/jira/browse/FLINK-40355
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Gustavo de Morais
> Assignee: Gustavo de Morais
> Priority: Major
> Labels: pull-request-available
>
> Add the built-in function {{MAP_CONTAINS_KEY(map, key)}} to Flink SQL, backed
> by the existing Calcite implementation. Returns TRUE if the map contains the
> given key.
> Includes function definition, validation, implementation, and docs.
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