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Posted to issues@spark.apache.org by "Matthew Sinton-Hewitt (JIRA)" <ji...@apache.org> on 2017/10/26 14:08:00 UTC
[jira] [Updated] (SPARK-22364) unix_timestamp function sets valid
dates to null
[ https://issues.apache.org/jira/browse/SPARK-22364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthew Sinton-Hewitt updated SPARK-22364:
------------------------------------------
Description:
org.apache.spark.sql.functions.unix_timestamp sets some valid dates to null.
The dates happen to be the at the start of Daylight Savings time (UK and possibly elsewhere).
{code:java}
import spark.implicits._
SparkSession.builder.getOrCreate()
.sparkContext.parallelize(
Seq("25/03/2012 00:59", "25/03/2012 01:00", "25/03/2012 01:59", "25/03/2012 02:01"))
.toDF("date")
.select(unix_timestamp($"date", "dd/MM/yyyy HH:mm"))
.show(false)
// results:
// 1332637140, null, null, 1332637260
{code}
was:
org.apache.spark.sql.functions.unix_timestamp sets some valid dates to null.
The dates happen to be the at the start of Daylight Savings time (UK and possibly elsewhere).
{code:scala}
import spark.implicits._
SparkSession.builder.getOrCreate()
.sparkContext.parallelize(
Seq("25/03/2012 00:59", "25/03/2012 01:00", "25/03/2012 01:59", "25/03/2012 02:01"))
.toDF("date")
.select(unix_timestamp($"date", "dd/MM/yyyy HH:mm"))
.show(false)
// results:
// 1332637140, null, null, 1332637260
{code}
> unix_timestamp function sets valid dates to null
> ------------------------------------------------
>
> Key: SPARK-22364
> URL: https://issues.apache.org/jira/browse/SPARK-22364
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Environment: Windows 10, United Kingdom
> Reporter: Matthew Sinton-Hewitt
>
> org.apache.spark.sql.functions.unix_timestamp sets some valid dates to null.
> The dates happen to be the at the start of Daylight Savings time (UK and possibly elsewhere).
> {code:java}
> import spark.implicits._
> SparkSession.builder.getOrCreate()
> .sparkContext.parallelize(
> Seq("25/03/2012 00:59", "25/03/2012 01:00", "25/03/2012 01:59", "25/03/2012 02:01"))
> .toDF("date")
> .select(unix_timestamp($"date", "dd/MM/yyyy HH:mm"))
> .show(false)
> // results:
> // 1332637140, null, null, 1332637260
> {code}
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