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https://issues.apache.org/jira/browse/FLINK-26951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lincoln lee closed FLINK-26951.
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Resolution: Won't Do
> Add HASH supported in SQL & Table API
> -------------------------------------
>
> Key: FLINK-26951
> URL: https://issues.apache.org/jira/browse/FLINK-26951
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: dalongliu
> Priority: Major
> Fix For: 1.20.0
>
>
> Returns a hash value of the arguments.
> Syntax:
> {code:java}
> hash(expr1, ...) {code}
> Arguments:
> * {{{}exprN{}}}: An expression of any type.
> Returns:
> An INTEGER.
> Examples:
> {code:java}
> > SELECT hash('Flink', array(123), 2);
> -1321691492 {code}
> See more:
> * [Spark|https://spark.apache.org/docs/latest/api/sql/index.html#hash]
> * [Hive|https://cwiki.apache.org/confluence/display/hive/languagemanual+udf]
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