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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 03:59:17 UTC
[jira] [Updated] (SPARK-21905) ClassCastException when call
sqlContext.sql on temp table
[ https://issues.apache.org/jira/browse/SPARK-21905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon updated SPARK-21905:
---------------------------------
Labels: bulk-closed (was: )
> ClassCastException when call sqlContext.sql on temp table
> ---------------------------------------------------------
>
> Key: SPARK-21905
> URL: https://issues.apache.org/jira/browse/SPARK-21905
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: bluejoe
> Priority: Major
> Labels: bulk-closed
>
> {code:java}
> val schema = StructType(List(
> StructField("name", DataTypes.StringType, true),
> StructField("location", new PointUDT, true)))
> val rowRdd = sqlContext.sparkContext.parallelize(Seq("bluejoe", "alex"), 4).map({ x: String ⇒ Row.fromSeq(Seq(x, Point(100, 100))) });
> val dataFrame = sqlContext.createDataFrame(rowRdd, schema)
> dataFrame.createOrReplaceTempView("person");
> sqlContext.sql("SELECT * FROM person").foreach(println(_));
> {code}
> the last statement throws exception:
> {code:java}
> Caused by: java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.GenericRow cannot be cast to org.apache.spark.sql.catalyst.InternalRow
> at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.evalIfFalseExpr1$(Unknown Source)
> at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown Source)
> at org.apache.spark.sql.catalyst.encoders.ExpressionEncoder.toRow(ExpressionEncoder.scala:287)
> ... 18 more
> {code}
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