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Posted to issues-all@impala.apache.org by "Fucun Chu (Jira)" <ji...@apache.org> on 2021/07/31 10:00:02 UTC
[jira] [Created] (IMPALA-10835) Extend the ds_hll_sketch() function
to accept a precision
Fucun Chu created IMPALA-10835:
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Summary: Extend the ds_hll_sketch() function to accept a precision
Key: IMPALA-10835
URL: https://issues.apache.org/jira/browse/IMPALA-10835
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Fucun Chu
Assignee: Fucun Chu
Like [IMPALA-2658|https://issues.apache.org/jira/browse/IMPALA-2658], an optional parameter is added to solve the limitation of the precision of the ds_hll_sketch function.
{code:java}
DS_HLL_SKETCH(expression [, precision])
{code}
The precision value must be between 4 and 21. The default is 12.
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