[ https://issues.apache.org/jira/browse/IMPALA-8566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon resolved IMPALA-8566. --------------------------------- Resolution: Fixed Fix Version/s: Impala 3.3.0 > COMPUTE INCREMENTAL STATS sets num_nulls off-by-one > --------------------------------------------------- > > Key: IMPALA-8566 > URL: https://issues.apache.org/jira/browse/IMPALA-8566 > Project: IMPALA > Issue Type: Bug > Components: Backend > Affects Versions: Impala 3.2.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Priority: Major > Fix For: Impala 3.3.0 > > > IMPALA-7659 added the population of NULL counts while computing stats, but > this functionality isn't working properly for incremental stats. The query is > produced correctly, but the null count set in the table is one lower than it > should be. In the case that the table has no nulls, this ends up setting a > '-1' count, which is interpreted as 'unknown'. In the case that there are > nulls, we'll just be a little inaccurate. -- This message was sent by Atlassian JIRA (v7.6.3#76005)