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https://issues.apache.org/jira/browse/PHOENIX-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581459#comment-14581459
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ramkrishna.s.vasudevan commented on PHOENIX-2021:
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Seeing these complexities I would still think if we could copy the elements of
both the arrays and just call the existing toBytes. As you said it may end up
in creating multiple objects and mutiple serialization and deserialization
operation.
> Implement ARRAY_CAT built in function
> -------------------------------------
>
> Key: PHOENIX-2021
> URL: https://issues.apache.org/jira/browse/PHOENIX-2021
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Dumindu Buddhika
> Assignee: Dumindu Buddhika
> Attachments: PHOENIX-2021.patch
>
>
> Ex:
> ARRAY_CAT(ARRAY[2, 3, 4], ARRAY[4, 5, 6]) = ARRAY[2,3,4,4,5,6]
> ARRAY_CAT(ARRAY["a", "b"], ARRAY["c", "d"]) = ARRAY["a", "b", "c", "d"]
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