From aa41a522d821c989c65fa3f7f2a4d372e39bb958 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?baishuo=28=E7=99=BD=E7=A1=95=29?= <vc_java@hotmail.com>
Date: Tue, 3 Jun 2014 13:39:47 -0700
Subject: [PATCH] fix java.lang.ClassCastException
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get Exception when run：bin/run-example org.apache.spark.examples.sql.RDDRelation
Exception's detail is:
Exception in thread "main" java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
at scala.runtime.BoxesRunTime.unboxToInt(BoxesRunTime.java:106)
at org.apache.spark.sql.catalyst.expressions.GenericRow.getInt(Row.scala:145)
at org.apache.spark.examples.sql.RDDRelation$.main(RDDRelation.scala:49)
at org.apache.spark.examples.sql.RDDRelation.main(RDDRelation.scala)
change sql("SELECT COUNT(*) FROM records").collect().head.getInt(0) to sql("SELECT COUNT(*) FROM records").collect().head.getLong(0), then the Exception do not occur any more
Author: baishuo(白硕) <vc_java@hotmail.com>
Closes #949 from baishuo/master and squashes the following commits:
f4b319f [baishuo(白硕)] fix java.lang.ClassCastException
---
.../main/scala/org/apache/spark/examples/sql/RDDRelation.scala | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala b/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
index 61c460c6b1..63db688bfb 100644
--- a/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/sql/RDDRelation.scala
@@ -43,7 +43,7 @@ object RDDRelation {
sql("SELECT * FROM records").collect().foreach(println)
// Aggregation queries are also supported.
- val count = sql("SELECT COUNT(*) FROM records").collect().head.getInt(0)
+ val count = sql("SELECT COUNT(*) FROM records").collect().head.getLong(0)
println(s"COUNT(*): $count")
// The results of SQL queries are themselves RDDs and support all normal RDD functions. The
--
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