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https://issues.apache.org/jira/browse/PHOENIX-2147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14642302#comment-14642302
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ramkrishna.s.vasudevan commented on PHOENIX-2147:
-------------------------------------------------
{code}
array = string.split("(?!^)");
{code}
What does this expression mean? Suppose the string is "1 2 3 4". There is no
delimiter and nullString. So this wil yield {1,2,3,4}? Also all the array are
of type String only right? We don't have a function that will convert a string
to an Int arry?
The test cases testStringToArrayFunction16 to testStringToArrayFunction19 have
some reptitions I think. Pls check it.
Great work [~Dumindux].
> Implement STRING_TO_ARRAY built in function
> -------------------------------------------
>
> Key: PHOENIX-2147
> URL: https://issues.apache.org/jira/browse/PHOENIX-2147
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Dumindu Buddhika
> Assignee: Dumindu Buddhika
> Attachments: PHOENIX-2147_v1.patch, PHOENIX-2147_v2.patch
>
>
> Splits string into array elements using supplied delimiter and optional null
> string and returns the resulting varchar array
> Example: STRING_TO_ARRAY('wx^yy^zz', '^', 'yy') → {'wx',NULL,'zz'}
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