Adam Tamas created IMPALA-10132:
-----------------------------------
Summary: Implement ds_hll_estimate_bounds()
Key: IMPALA-10132
URL: https://issues.apache.org/jira/browse/IMPALA-10132
Project: IMPALA
Issue Type: Sub-task
Reporter: Adam Tamas
In hive ds_hll_estimate_bounds() gives back an array of doubles.
An example for a sketch created from a table which contains only a single value:
(select ds_hll_estimate_bounds(ds_hll_sketch(i)) from t;)
+-------------------------------+
| _c0 |
+-------------------------------+
| [1.0,1.0,1.0000998634873453] |
+-------------------------------+
The values of the array is probably a lower bound, an estimate and an upper
bound of the sketch.
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