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https://issues.apache.org/jira/browse/SPARK-13108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15127648#comment-15127648
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Reynold Xin commented on SPARK-13108:
-------------------------------------
[~hyukjin.kwon] are you replying to yourself?
> Encoding not working with non-ascii compatible encodings (UTF-16/32 etc.)
> -------------------------------------------------------------------------
>
> Key: SPARK-13108
> URL: https://issues.apache.org/jira/browse/SPARK-13108
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Hyukjin Kwon
> Priority: Minor
>
> This library uses Hadoop's
> [{{TextInputFormat}}|https://github.com/apache/hadoop/blob/master/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/TextInputFormat.java],
> which uses
> [{{LineRecordReader}}|https://github.com/apache/hadoop/blob/master/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/LineRecordReader.java].
> According to
> [MAPREDUCE-232|https://issues.apache.org/jira/browse/MAPREDUCE-232], it looks
> [{{TextInputFormat}}|https://github.com/apache/hadoop/blob/master/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/TextInputFormat.java]
> does not guarantee all encoding types but officially only UTF-8 (as
> commented in
> [{{LineRecordReader#L147}}|https://github.com/apache/hadoop/blob/master/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/LineRecordReader.java#L147]).
> According to
> [MAPREDUCE-232#comment-13183601|https://issues.apache.org/jira/browse/MAPREDUCE-232?focusedCommentId=13183601&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13183601],
> it still looks fine with most encodings though but without UTF-16/32.
> In more details,
> I tested this in Max OS. I converted `cars_iso-8859-1.csv` into
> `cars_utf-16.csv` as below:
> {code}
> iconv -f iso-8859-1 -t utf-16 < cars_iso-8859-1.csv > cars_utf-16.csv
> {code}
> and run the codes below:
> {code}
> val cars = "cars_utf-16.csv"
> sqlContext.read
> .format("csv")
> .option("charset", "utf-16")
> .option("delimiter", 'þ')
> .load(cars)
> .show()
> {code}
> This produces a wrong results below:
> {code}
> +----+-----+-----+--------------------+------+
> |year| make|model| comment|blank�|
> +----+-----+-----+--------------------+------+
> |2012|Tesla| S| No comment| �|
> | �| null| null| null| null|
> |1997| Ford| E350|Go get one now th...| �|
> |2015|Chevy|Volt�| null| null|
> | �| null| null| null| null|
> +----+-----+-----+--------------------+------+
> {code}
> Instead of the correct results below:
> {code}
> +----+-----+-----+--------------------+-----+
> |year| make|model| comment|blank|
> +----+-----+-----+--------------------+-----+
> |2012|Tesla| S| No comment| |
> |1997| Ford| E350|Go get one now th...| |
> |2015|Chevy| Volt| null| null|
> +----+-----+-----+--------------------+-----+
> {code}
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