Hello Michael Ho, Jim Apple, Attila Jeges, Impala Public Jenkins, I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/8355 to look at the new patch set (#18). Change subject: IMPALA-5754: Improve randomness of rand()/random() ...................................................................... IMPALA-5754: Improve randomness of rand()/random() Currently implementation of rand/random built-in functions use rand_r of C library. We recognized its randomness was poor. pcg32 of third party library shows better randomness than rand_r. Testing: Revise unit test in expr-test Add E2E test to random.test Change-Id: Idafdd5fe7502ff242c76a91a815c565146108684 --- M LICENSE.txt M be/src/exprs/expr-test.cc M be/src/exprs/math-functions-ir.cc A be/src/thirdparty/pcg-cpp-0.98/LICENSE.txt A be/src/thirdparty/pcg-cpp-0.98/README.md A be/src/thirdparty/pcg-cpp-0.98/include/pcg_extras.hpp A be/src/thirdparty/pcg-cpp-0.98/include/pcg_random.hpp A be/src/thirdparty/pcg-cpp-0.98/include/pcg_uint128.hpp M bin/rat_exclude_files.txt M fe/src/main/jflex/sql-scanner.flex M testdata/workloads/functional-query/queries/QueryTest/alloc-fail-init.test A testdata/workloads/functional-query/queries/QueryTest/random.test M tests/query_test/test_queries.py 13 files changed, 3,458 insertions(+), 33 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/55/8355/18 -- To view, visit http://gerrit.cloudera.org:8080/8355 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: Idafdd5fe7502ff242c76a91a815c565146108684 Gerrit-Change-Number: 8355 Gerrit-PatchSet: 18 Gerrit-Owner: Kim Jin Chul <jinc...@gmail.com> Gerrit-Reviewer: Attila Jeges <atti...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins Gerrit-Reviewer: Jim Apple <jbapple-imp...@apache.org> Gerrit-Reviewer: Kim Jin Chul <jinc...@gmail.com> Gerrit-Reviewer: Michael Ho <k...@cloudera.com>