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https://issues.apache.org/jira/browse/PHOENIX-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561290#comment-14561290
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alex kamil commented on PHOENIX-777:
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Thanks [~Dumindux]!
in regards to 0.0 values in DOUBLE ARRAY etc we will use special values for now
and create UDFs for functions like AVG to ignore those values when counting
array elements. If there is a better way pls let me know.
> Support null value for fixed length ARRAY
> -----------------------------------------
>
> Key: PHOENIX-777
> URL: https://issues.apache.org/jira/browse/PHOENIX-777
> Project: Phoenix
> Issue Type: Task
> Reporter: James Taylor
> Assignee: Dumindu Buddhika
> Fix For: 4.4.0
>
> Attachments: PHOENIX-777.patch
>
>
> A null value for a fixed length array can be handled with a bitset tacked on
> the end of the array. If an element is set to null, then the bit at that
> index is set. Trailing nulls are not stored and an attempt to access an array
> past the current size returns null.
> Current behavior,
> PBinaryArray - Throws an exception when a null is inserted.
> PBooleanArray - null is considered as false when a null is inserted.
> PCharArray - Throws an exception when a null is inserted.
> PDateArray - Throws an exception when a null is inserted.
> PDoubleArray - null is considered as 0.0 when a null is inserted.
> PFloatArray - null is considered as 0.0 when a null is inserted.
> PIntegerArray - null is considered as 0 when a null is inserted.
> PLongArray - null is considered as 0 when a null is inserted.
> PSmallIntArray - null is considered as 0 when a null is inserted.
> PTimeArray - Throws an exception when a null is inserted.
> PTimeStampArray - Throws an exception when a null is inserted.
> PTinyIntArray - null is considered as 0 when a null is inserted.
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