Jim Apple has uploaded a new change for review. http://gerrit.cloudera.org:8080/5004
Change subject: IMPALA-4433: Fix undefined NDV calculations ...................................................................... IMPALA-4433: Fix undefined NDV calculations GCC's __builtin_ctz[l[l]] functions return undefined results when the argument is 0. This patch handles that 0 case. This changes the metadata for the test data, because ctz is used in HLL++, which is used as the NDV computation in compute stats. Change-Id: I8460bc3f7e510ce07b8673387c9440accc432abe --- M be/src/exprs/aggregate-functions-ir.cc M be/src/udf_samples/hyperloglog-uda.cc M be/src/util/bit-util.h M testdata/workloads/functional-query/queries/QueryTest/alter-table-set-column-stats.test M testdata/workloads/functional-query/queries/QueryTest/compute-stats-incremental.test M testdata/workloads/functional-query/queries/QueryTest/compute-stats.test M testdata/workloads/functional-query/queries/QueryTest/show-stats.test M testdata/workloads/functional-query/queries/QueryTest/truncate-table.test 8 files changed, 43 insertions(+), 17 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/04/5004/1 -- To view, visit http://gerrit.cloudera.org:8080/5004 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I8460bc3f7e510ce07b8673387c9440accc432abe Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Jim Apple <[email protected]>
