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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2016/01/25 04:41:39 UTC
[jira] [Resolved] (SPARK-12624) When schema is specified, we should
give better error message if actual row length doesn't match
[ https://issues.apache.org/jira/browse/SPARK-12624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yin Huai resolved SPARK-12624.
------------------------------
Resolution: Fixed
Fix Version/s: 1.6.1
2.0.0
Issue resolved by pull request 10886
[https://github.com/apache/spark/pull/10886]
> When schema is specified, we should give better error message if actual row length doesn't match
> ------------------------------------------------------------------------------------------------
>
> Key: SPARK-12624
> URL: https://issues.apache.org/jira/browse/SPARK-12624
> Project: Spark
> Issue Type: Bug
> Components: PySpark, SQL
> Reporter: Reynold Xin
> Priority: Blocker
> Fix For: 2.0.0, 1.6.1
>
>
> The following code snippet reproduces this issue:
> {code}
> from pyspark.sql.types import StructType, StructField, IntegerType, StringType
> from pyspark.sql.types import Row
> schema = StructType([StructField("a", IntegerType()), StructField("b", StringType())])
> rdd = sc.parallelize(range(10)).map(lambda x: Row(a=x))
> df = sqlContext.createDataFrame(rdd, schema)
> df.show()
> {code}
> An unintuitive {{ArrayIndexOutOfBoundsException}} exception is thrown in this case:
> {code}
> ...
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
> at org.apache.spark.sql.catalyst.expressions.GenericInternalRow.genericGet(rows.scala:227)
> at org.apache.spark.sql.catalyst.expressions.BaseGenericInternalRow$class.getAs(rows.scala:35)
> at org.apache.spark.sql.catalyst.expressions.BaseGenericInternalRow$class.isNullAt(rows.scala:36)
> ...
> {code}
> We should give a better error message here.
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