Miles Yucht created SPARK-24381: ----------------------------------- Summary: Improve Unit Test Coverage of NOT IN subqueries Key: SPARK-24381 URL: https://issues.apache.org/jira/browse/SPARK-24381 Project: Spark Issue Type: Improvement Components: SQL Affects Versions: 2.3.2 Reporter: Miles Yucht
Today, the unit test coverage for NOT IN queries in SubquerySuite is somewhat lacking. There are a couple test cases that exist, but it isn't necessarily clear that those tests cover all of the subcomponents of null-aware anti joins, i.e. where the subquery returns a null value, if specific columns of either relation are null, etc. Also, it is somewhat difficult for a newcomer to understand the intended behavior of a null-aware anti join without great effort. We should make sure we have proper coverage as well as improve the documentation of this particular subquery, especially with respect to null behavior. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org