Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/20774#discussion_r173715303
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
---
@@ -135,11 +135,14 @@ object TypeCoercion {
case (DateType, StringType) => Some(StringType)
case (StringType, TimestampType) => Some(StringType)
case (TimestampType, StringType) => Some(StringType)
- case (TimestampType, DateType) => Some(StringType)
- case (DateType, TimestampType) => Some(StringType)
case (StringType, NullType) => Some(StringType)
case (NullType, StringType) => Some(StringType)
+ // Cast to TimestampType when we compare DateType with TimestampType
+ // i.e. TimeStamp('2017-03-01 00:00:00') eq Date('2017-03-01') = true
--- End diff --
Thanks
@dongjoon-hyun are you pointing out [this HIVE JIRA
entry|https://issues.apache.org/jira/browse/HIVE-15236] in [this
comment](https://issues.apache.org/jira/browse/SPARK-23549?focusedCommentId=16391877&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16391877)?
Or other HIVE JIRA entries?
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