[ https://issues.apache.org/jira/browse/HIVE-21742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vineet Garg updated HIVE-21742: ------------------------------- Attachment: HIVE-21742.6.patch > Vectorization: CASE result type casting > --------------------------------------- > > Key: HIVE-21742 > URL: https://issues.apache.org/jira/browse/HIVE-21742 > Project: Hive > Issue Type: Bug > Components: Logical Optimizer, Vectorization > Affects Versions: 3.1.1 > Reporter: Gopal V > Assignee: Vineet Garg > Priority: Major > Labels: pull-request-available > Attachments: HIVE-21742.1.patch, HIVE-21742.2.patch, > HIVE-21742.3.patch, HIVE-21742.4.patch, HIVE-21742.5.patch, > HIVE-21742.6.patch, HIVE-21799.4.patch > > Time Spent: 3h 20m > Remaining Estimate: 0h > > {code} > create temporary table foo(q548284 int); > insert into foo values(1),(2),(3),(4),(5),(6); > select q548284, CASE WHEN ((q548284 = 1)) THEN (0.2) WHEN ((q548284 = 2)) > THEN (0.4) WHEN ((q548284 = 3)) THEN (0.6) WHEN ((q548284 = 4)) THEN (0.8) > WHEN ((q548284 = 5)) THEN (1) ELSE (null) END from foo order by q548284 limit > 1; > {code} > Fails with > {code} > Caused by: java.lang.ClassCastException: > org.apache.hadoop.hive.ql.exec.vector.LongColumnVector cannot be cast to > org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector > at > org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector.setElement(DecimalColumnVector.java:130) > at > org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprColumnNull.evaluate(IfExprColumnNull.java:101) > {code} > This gets fixed if the case return of (1) is turned into a (1.0). -- This message was sent by Atlassian JIRA (v7.6.3#76005)