Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/17818 )

Change subject: IMPALA-10901 cleaner and faster operations with datasketches
......................................................................

IMPALA-10901 cleaner and faster operations with datasketches

- serialize using bytes instead of stream
- avoid unnecessary constructor during deserialization
- simplified code slightly
- added original exception message to re-thrown generic message

Change-Id: I306a2489dac0f4d2d475e8f9987cd58bf95474bb
Reviewed-on: http://gerrit.cloudera.org:8080/17818
Reviewed-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
---
M be/src/exprs/aggregate-functions-ir.cc
M be/src/exprs/datasketches-common.cc
M be/src/exprs/datasketches-common.h
M be/src/exprs/datasketches-functions-ir.cc
M testdata/workloads/functional-query/queries/QueryTest/datasketches-cpc.test
M testdata/workloads/functional-query/queries/QueryTest/datasketches-hll.test
M testdata/workloads/functional-query/queries/QueryTest/datasketches-kll.test
M testdata/workloads/functional-query/queries/QueryTest/datasketches-theta.test
8 files changed, 259 insertions(+), 375 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I306a2489dac0f4d2d475e8f9987cd58bf95474bb
Gerrit-Change-Number: 17818
Gerrit-PatchSet: 5
Gerrit-Owner: Alexander Saydakov <al...@apache.org>
Gerrit-Reviewer: Fucun Chu <chufu...@hotmail.com>
Gerrit-Reviewer: Gabor Kaszab <gaborkas...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>

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