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https://issues.apache.org/jira/browse/SPARK-8951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14731151#comment-14731151
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Shivaram Venkataraman commented on SPARK-8951:
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Ah I should have retested this before merging - I'll send a PR to fix this now
> support CJK characters in collect()
> -----------------------------------
>
> Key: SPARK-8951
> URL: https://issues.apache.org/jira/browse/SPARK-8951
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Reporter: Jaehong Choi
> Assignee: Jaehong Choi
> Priority: Minor
> Fix For: 1.6.0
>
> Attachments: SerDe.scala.diff
>
>
> Spark gives an error message and does not show the output when a field of the
> result DataFrame contains characters in CJK.
> I found out that SerDe in R API only supports ASCII format for strings right
> now as commented in source code.
> So, I fixed SerDe.scala a little to support CJK as the file attached.
> I did not care efficiency, but just wanted to see if it works.
> {noformat}
> people.json
> {"name":"가나"}
> {"name":"테스트123", "age":30}
> {"name":"Justin", "age":19}
> df <- read.df(sqlContext, "./people.json", "json")
> head(df)
> Error in rawtochar(string) : embedded nul in string : '\0 \x98'
> {noformat}
> {code:title=core/src/main/scala/org/apache/spark/api/r/SerDe.scala}
> // NOTE: Only works for ASCII right now
> def writeString(out: DataOutputStream, value: String): Unit = {
> val len = value.length
> out.writeInt(len + 1) // For the \0
> out.writeBytes(value)
> out.writeByte(0)
> {code}
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