[jira] [Created] (SPARK-24645) Skip parsing when csvColumnPruning enabled and partitions scanned only

["Takeshi Yamamuro (JIRA)" <ji...@apache.org>]

Takeshi Yamamuro created SPARK-24645:
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             Summary: Skip parsing when csvColumnPruning enabled and partitions scanned only
                 Key: SPARK-24645
                 URL: https://issues.apache.org/jira/browse/SPARK-24645
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.1
            Reporter: Takeshi Yamamuro


I hit the bug below when parsing csv data;
{code:java}
scala> val dir = "/tmp/spark-csv/csv"
scala> spark.range(10).selectExpr("id % 2 AS p", "id").write.mode("overwrite").partitionBy("p").csv(dir)
scala> spark.read.csv(dir).selectExpr("sum(p)").collect()
18/06/25 13:12:51 ERROR Executor: Exception in task 0.0 in stage 2.0 (TID 5)
java.lang.NullPointerException
at org.apache.spark.sql.execution.datasources.csv.UnivocityParser.org$apache$spark$sql$execution$datasources$csv$UnivocityParser$$convert(UnivocityParser.scala:197) 
at org.apache.spark.sql.execution.datasources.csv.UnivocityParser.parse(UnivocityParser.scala:190)
at org.apache.spark.sql.execution.datasources.csv.UnivocityParser$$anonfun$5.apply(UnivocityParser.scala:309)
at org.apache.spark.sql.execution.datasources.csv.UnivocityParser$$anonfun$5.apply(UnivocityParser.scala:309)
at org.apache.spark.sql.execution.datasources.FailureSafeParser.parse(FailureSafeParser.scala:61)
...

{code}
 



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