Gabor Kaszab created IMPALA-10105:
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Summary: Rewrite KLL functions to return array of doubles
Key: IMPALA-10105
URL: https://issues.apache.org/jira/browse/IMPALA-10105
Project: IMPALA
Issue Type: New Feature
Components: Backend
Reporter: Gabor Kaszab
There are functions that originally meant to return Array<Double> but since
Impala doesn't have support for returning complex types these functions were
implemented to return a comma separated string.
To avoid breaking compatibility these functions got "_as_string" postfix:
- ds_kll_quantiles_as_string()
- ds_kll_pmf_as_string()
- ds_kll_cdf_as_string()
This ticket is to implement the version of these functions that actually return
an array of doubles.
- ds_kll_quantiles()
- ds_kll_pmf()
- ds_kll_cdf()
This is the Jira that track complex types support as return type:
https://issues.apache.org/jira/browse/IMPALA-9520
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