Gopal V created HIVE-18079:
------------------------------
Summary: Statistics: Allow HyperLogLog to be merged to the
lowest-common-denominator bit-size
Key: HIVE-18079
URL: https://issues.apache.org/jira/browse/HIVE-18079
Project: Hive
Issue Type: Improvement
Reporter: Gopal V
HyperLogLog can merge a 14 bit HLL into a 10 bit HLL bitset, because of its
mathematical hash distribution & construction.
Allow the squashing of a 14 bit HLL -> 10 bit HLL without needing a second scan
over the data-set.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
