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https://issues.apache.org/jira/browse/SPARK-19561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-19561:
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Assignee: (was: Apache Spark)
> Pyspark Dataframes don't allow timestamps near epoch
> ----------------------------------------------------
>
> Key: SPARK-19561
> URL: https://issues.apache.org/jira/browse/SPARK-19561
> Project: Spark
> Issue Type: Bug
> Components: PySpark, SQL
> Affects Versions: 2.0.1, 2.1.0
> Reporter: Jason White
>
> Pyspark does not allow timestamps at or near the epoch to be created in a
> DataFrame. Related issue: https://issues.apache.org/jira/browse/SPARK-19299
> TimestampType.toInternal converts a datetime object to a number representing
> microseconds since the epoch. For all times more than 2148 seconds before or
> after 1970-01-01T00:00:00+0000, this number is greater than 2^31 and Py4J
> automatically serializes it as a long.
> However, for times within this range (~35 minutes before or after the epoch),
> Py4J serializes it as an int. When creating the object on the Scala side,
> ints are not recognized and the value goes to null. This leads to null values
> in non-nullable fields, and corrupted Parquet files.
> The solution is trivial - force TimestampType.toInternal to always return a
> long.
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