Jim Apple has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/17411 )
Change subject: IMPALA-10696: fix accuracy problem ...................................................................... IMPALA-10696: fix accuracy problem Table alltypes has no statistics, so the cardinality of alltypes will be estimated based on the hdfs files and the avg row size. Calling PrintUtils.printMetric, double will be divided by long. There will be accuracy problems. In most cases, the number of lines calculated is 17.91 K. But due to accuracy problems here, the calculated value is 17.90K. I modified line 221 of stats-extrapolation.test and used row_regex to match, referring to the matching method of cardinality in line 224,in this case, their values are the same Testing: metadata/test_stats_extrapolation.py Change-Id: I0a1a3809508c90217517705b2b188b2ccba6f23f Reviewed-on: http://gerrit.cloudera.org:8080/17411 Tested-by: Impala Public Jenkins <[email protected]> Reviewed-by: Jim Apple <[email protected]> --- M testdata/workloads/functional-query/queries/QueryTest/stats-extrapolation.test 1 file changed, 1 insertion(+), 1 deletion(-) Approvals: Impala Public Jenkins: Verified Jim Apple: Looks good to me, approved -- To view, visit http://gerrit.cloudera.org:8080/17411 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I0a1a3809508c90217517705b2b188b2ccba6f23f Gerrit-Change-Number: 17411 Gerrit-PatchSet: 2 Gerrit-Owner: liuyao <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]>
