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https://issues.apache.org/jira/browse/IMPALA-10018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17173288#comment-17173288
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ASF subversion and git services commented on IMPALA-10018:
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Commit 0736fcf69107dca187828b0be88bd74a6539cde2 in impala's branch
refs/heads/master from Gabor Kaszab
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=0736fcf ]
IMPALA-10018: Implement ds_kll_rank() function
ds_kll_rank() receives two parameters: a STRING that represents a
serialized DataSketches KLL sketch and a float to provide a probing
value in the sketch.
Returns a DOUBLE that is the rank of the given probing value in the
range of [0,1]. E.g. a return value of 0.2 means that the probing value
given as parameter is greater than the 20% of all the values in the
sketch. Note, this is an approximate calculation.
Change-Id: I95857886dfbb8c84aeeaf718c0e610012fda4be0
Reviewed-on: http://gerrit.cloudera.org:8080/16283
Reviewed-by: Gabor Kaszab <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Implement ds_kll_rank() function
> --------------------------------
>
> Key: IMPALA-10018
> URL: https://issues.apache.org/jira/browse/IMPALA-10018
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, Frontend
> Reporter: Gabor Kaszab
> Assignee: Gabor Kaszab
> Priority: Major
>
> ds_kll_rank() receives two parameters: a STRING that represents a serialized
> DataSketches KLL sketch and a float to provide a probing value in the sketch.
> Returns a DOUBLE that is the rank of the given probing value in the range of
> [0,1]. E.g. a return value of 0.2 means that the probing value given as
> parameter is greater than the 20% of all the values in the sketch. Note, this
> is an approximate calculation.
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