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https://issues.apache.org/jira/browse/ASTERIXDB-2371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Lychagin resolved ASTERIXDB-2371.
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Resolution: Fixed
> Implement null-related functions
> --------------------------------
>
> Key: ASTERIXDB-2371
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2371
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: FUN - Functions
> Reporter: Dmitry Lychagin
> Assignee: Dmitry Lychagin
> Priority: Minor
>
> Implement null-related functions: MISSINGIF, NULLIF, NANIF, NEGINFIF, POSINFIF
> they accept two arguments
> 1) if any argument is MISSING then result is MISSING
> 2) if any argument is NULL then result is NULL
> 3) if arg1 == arg2 then result MISSING/NULL/NaN/-INF/+INF (corresponding to
> the function name)
> 4) otherwise the result is arg1
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