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Posted to issues-all@impala.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2020/11/26 03:05:00 UTC
[jira] [Commented] (IMPALA-10134) Implement ds_hll_union_f()
[ https://issues.apache.org/jira/browse/IMPALA-10134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239035#comment-17239035 ]
ASF subversion and git services commented on IMPALA-10134:
----------------------------------------------------------
Commit 8ea49e9b026d48b46e9fbd98dc5286f3e6dfa93d in impala's branch refs/heads/master from Fucun Chu
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=8ea49e9 ]
IMPALA-10134: Implement ds_hll_union_f() function.
This function receives two strings that are serialized Apache DataSketches
HLL sketches. Union two sketches and returns the resulting sketch of union.
Example:
select ds_hll_estimate(ds_hll_union_f(i_i, h_i))
from hll_sketches_impala_hive2;
+-------------------------------------------+
| ds_hll_estimate(ds_hll_union_f(i_i, h_i)) |
+-------------------------------------------+
| 7 |
+-------------------------------------------+
Change-Id: Ic06e959ed956af5cedbfc7d4d063141d5babb2a8
Reviewed-on: http://gerrit.cloudera.org:8080/16711
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>
> Implement ds_hll_union_f()
> --------------------------
>
> Key: IMPALA-10134
> URL: https://issues.apache.org/jira/browse/IMPALA-10134
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Adam Tamas
> Assignee: Fucun Chu
> Priority: Major
>
> Implement ds_hll_union_f() and make sure it's behaveing similarly as in Hive.
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