[
https://issues.apache.org/jira/browse/SPARK-18072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean Owen resolved SPARK-18072.
-------------------------------
Resolution: Cannot Reproduce
> empty/null Timestamp field
> --------------------------
>
> Key: SPARK-18072
> URL: https://issues.apache.org/jira/browse/SPARK-18072
> Project: Spark
> Issue Type: Question
> Components: Input/Output
> Affects Versions: 2.0.0
> Environment: hadoop 2.7.1, ubuntu 15.10, databricks 1.5, spark-csv
> 1.5.0, scala 2.11.8
> Reporter: marcin pekalski
> Labels: csvparser, parquet, parquetWriter, timestamp
>
> I was asked by [~falaki] to create a jira here, previously it was reported as
> databricks' issue on github
> https://github.com/databricks/spark-csv/issues/388#issuecomment-255631718
> I have problem with spark 2.0.0, spark-csv 1.5.0, and scala 2.11.8.
> I have a csv file that I want to convert to parquet. There is a column with
> timestamps and some of them are missing, those are empty strings (without
> quotes, and it is not even a spacer, just new line straightaway as that is
> the last column). I get exception thrown:
> {code}
> 16/10/23 02:46:08 ERROR Utils: Aborting task
> java.lang.IllegalArgumentException
> at java.sql.Date.valueOf(Date.java:143)
> at
> org.apache.spark.sql.catalyst.util.DateTimeUtils$.stringToTime(DateTimeUtils.scala:137)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVTypeCast$.castTo(CSVInferSchema.scala:287)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVRelation$$anonfun$csvParser$3.apply(CSVRelation.scala:115)
> at
> org.apache.spark.sql.execution.datasources.csv.CSVRelation$$anonfun$csvParser$3.apply(CSVRelation.scala:84)
> ...
> {code}
> The options I use when reading csv
> {code}
> "delimiter" -> ","
> "header" -> "true"
> "inferSchema" -> "true"
> "treatEmptyValuesAsNulls" ->"true"
> "nullValue"->""
> {code}
> The execution goes through *CSVINferSchema.scala* (lines 284-287) in
> **spark-sql_2.11-2.0.0-sources.jar**
> {code}
> case _: TimestampType =>
> // This one will lose microseconds parts.
> // See https://issues.apache.org/jira/browse/SPARK-10681.
> DateTimeUtils.stringToTime(datum).getTime * 1000L
> {code}
> it invokes `Date.valueOf(s)` in *DateTimeUtils.scala*
> *spark-catalyst_2.11-2.0.0-sources.jar* that then throws excepion in
> *java.sql.Date.valueOf*.
> Is that a bug, I am doing something wrong, or there is a way to pass a
> default value?
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
