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Posted to dev@phoenix.apache.org by "Swapna Kasula (JIRA)" <ji...@apache.org> on 2016/10/22 19:29:59 UTC

[jira] [Updated] (PHOENIX-3390) Custom UDAF for HyperLogLogPlus

     [ https://issues.apache.org/jira/browse/PHOENIX-3390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Swapna Kasula updated PHOENIX-3390:
-----------------------------------
    Description: 
With ref # PHOENIX-2069

Custome UDAF to aggregate/union of Hyperloglog's of a column and returns a Hyperloglog.

select hllUnion("col1") from table;  //returns a Hyperloglog, which is the union of all hyperloglog's from all rows for column 'col1'

  was:
With ref # PHOENIX-2069

Custome UDAF to aggregate/union of Hyperloglog's of a column and returns a Hyperloglog.


> Custom UDAF for HyperLogLogPlus
> -------------------------------
>
>                 Key: PHOENIX-3390
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3390
>             Project: Phoenix
>          Issue Type: New Feature
>            Reporter: Swapna Kasula
>            Priority: Minor
>
> With ref # PHOENIX-2069
> Custome UDAF to aggregate/union of Hyperloglog's of a column and returns a Hyperloglog.
> select hllUnion("col1") from table;  //returns a Hyperloglog, which is the union of all hyperloglog's from all rows for column 'col1'



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