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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