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https://issues.apache.org/jira/browse/PHOENIX-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14533839#comment-14533839
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ramkrishna.s.vasudevan commented on PHOENIX-1875:
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Okie, I get it now. You are allowing the oldOffset to be copied for the null
cases at the beginning and the non null ones are added followed by an offset
shift.
Pls add a patch with a comment on this as what is happening here may be with
some examples for better understanding.
{code}
lengthIncrease = nRemainingNulls == 1 ? (nMultiplesOver255 == 0 ? 2 *
Bytes.SIZEOF_BYTE : Bytes.SIZEOF_BYTE) : 0;
{code}
+1 on patch after you add the comment.
> implement ARRAY_PREPEND built in function
> -----------------------------------------
>
> Key: PHOENIX-1875
> URL: https://issues.apache.org/jira/browse/PHOENIX-1875
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Dumindu Buddhika
> Assignee: Dumindu Buddhika
> Attachments: PHOENIX-1875-v2.patch, PHOENIX-1875-v3.patch,
> PHOENIX-1875-v4.patch
>
>
> ARRAY_PREPEND(1, ARRAY[2, 3]) = ARRAY[1, 2, 3]
> ARRAY_PREPEND("a", ARRAY["b", "c"]) = ARRAY["a", "b", "c"]
> ARRAY_PREPEND(null, ARRAY["b", "c"]) = ARRAY[null, "b", "c"]
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