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https://issues.apache.org/jira/browse/IMPALA-10689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359209#comment-17359209
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ASF subversion and git services commented on IMPALA-10689:
----------------------------------------------------------
Commit ce21fe74b806757a1c9e52c614db95a76283c78c in impala's branch
refs/heads/master from Fucun Chu
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=ce21fe7 ]
IMPALA-10689: Implement ds_cpc_union_f() function.
This function receives two strings that are serialized Apache
DataSketches CPC sketches. Union two sketches and returns the
resulting sketch of union.
Example:
select ds_cpc_estimate(ds_cpc_union_f(sketch1, sketch2))
from sketch_tbl;
+---------------------------------------------------+
| ds_cpc_estimate(ds_cpc_union_f(sketch1, sketch2)) |
+---------------------------------------------------+
| 15 |
+---------------------------------------------------+
Change-Id: Ib5c616316bf2bf2ff437678e9a44a15339920150
Reviewed-on: http://gerrit.cloudera.org:8080/17440
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Implement ds_cpc_union_f() function
> -----------------------------------
>
> Key: IMPALA-10689
> URL: https://issues.apache.org/jira/browse/IMPALA-10689
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, Frontend
> Reporter: Fucun Chu
> Assignee: Fucun Chu
> Priority: Major
>
> ds_cpc_union_f() receives two strings that are serialized Apache DataSketches
> CPC sketches. Union two sketches and returns the resulting sketch of union.
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