Guiju Zhang created SPARK-27211:
-----------------------------------
Summary: cast error when select column from Row
Key: SPARK-27211
URL: https://issues.apache.org/jira/browse/SPARK-27211
Project: Spark
Issue Type: Question
Components: Java API
Affects Versions: 2.3.1, 2.3.0
Reporter: Guiju Zhang
(1) RawLogPlayload has an field: long timestamp
(2)
extractedRawTc.printSchema(); // output1
Dataset<RawLogPayload> extractedRawW3cFilled =
extractedRawW3c.alias("extractedRawW3c")
.join(extractedRawTc.alias("extractedRawTc"),
functions.col("extractedRawW3c.rawsessionid").equalTo(functions.col("extractedRawTc.rawsessionid")),
"inner")
.select(functions.col("extractedRawW3c.df_logdatetime"),
functions.col("extractedRawW3c.rawsessionid"),
functions.col("extractedRawTc.uid"),
functions.col("extractedRawW3c.time"),functions.col("extractedRawW3c.T"),functions.col("extractedRawW3c.url"),functions.col("extractedRawW3c.wid"),
functions.col("extractedRawW3c.tid"),
functions.col("extractedRawW3c.fid"),functions.col("extractedRawW3c.string1"),
functions.col("extractedRawW3c.curWindow"),
*functions.col("extractedRawW3c.timestamp")*)
.as(Encoders.bean(RawLogPayload.class));
extractedRawW3cFilled.printSchema(); // output2
(4) cast exception
2019-03-20 15:28:31 ERROR CodeGenerator:91 ## failed to compile:
org.codehaus.commons.compiler.CompileException: File 'generated.java', Line
103, Column 32: No applicable constructor/method found for actual parameters
"org.apache.spark.unsafe.types.UTF8String"; candidates are: "public void
com.microsoft.datamining.spartan.api.core.RawLogPayload.setTimestamp(long)"
org.codehaus.commons.compiler.CompileException: File 'generated.java', Line
103, Column 32: *No applicable constructor/method found for actual parameters
"org.apache.spark.unsafe.types.UTF8String"; candidates are: "public void
com.**xxxx**.**xxxx**.spartan.api.core.RawLogPayload.setTimestamp(long)"*
at org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:11821)
at
org.codehaus.janino.UnitCompiler.findMostSpecificIInvocable(UnitCompiler.java:8910)
Output1 extractedRawTc schema
root
|-- curWindow: string (nullable = true)
|-- df_logdatetime: string (nullable = true)
|-- fid: string (nullable = true)
|-- rawsessionid: string (nullable = true)
|-- string1: string (nullable = true)
|-- t: string (nullable = true)
|-- tid: string (nullable = true)
|-- time: string (nullable = true)
|-- *timestamp: long (nullable = true)*
|-- uid: string (nullable = true)
|-- url: string (nullable = true)
|-- wid: string (nullable = true)
Output2 extractedRawW3cFilled schema
root
|-- df_logdatetime: string (nullable = true)
|-- rawsessionid: string (nullable = true)
|-- uid: string (nullable = true)
|-- time: string (nullable = true)
|-- T: string (nullable = true)
|-- url: string (nullable = true)
|-- wid: string (nullable = true)
|-- tid: string (nullable = true)
|-- fid: string (nullable = true)
|-- string1: string (nullable = true)
|-- curWindow: string (nullable = true)
|-- *timestamp: long (nullable = true)*
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