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https://issues.apache.org/jira/browse/SPARK-12258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15050201#comment-15050201
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Ian commented on SPARK-12258:
-----------------------------
I believed this is a regression in 1.6
> Hive Timestamp UDF is binded with '1969-12-31 15:59:59.999999' for null value
> -----------------------------------------------------------------------------
>
> Key: SPARK-12258
> URL: https://issues.apache.org/jira/browse/SPARK-12258
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.6.0
> Reporter: Ian
>
> {code}
> test("Timestamp UDF and Null value") {
> hiveContext.runSqlHive("CREATE TABLE ts_test (ts TIMESTAMP) STORED AS
> TEXTFILE")
> hiveContext.runSqlHive("INSERT INTO TABLE ts_test VALUES(Null)")
> hiveContext.udf.register("dummy",
> (ts: Timestamp) => ts
> )
> val result = hiveContext.sql("SELECT dummy(ts) FROM
> ts_test").collect().mkString("\n")
> assertResult("[null]")(result)
> }
> {code}
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