[SPARK-28644][SQL] Port HIVE-10646: ColumnValue does not handle NULL_TYPE

[wangyum]

What changes were proposed in this pull request?

This PR port HIVE-10646 to fix Hive 0.12's JDBC client can not handle NULL_TYPE:

Connected to: Hive (version 3.0.0-SNAPSHOT)
Driver: Hive (version 0.12.0)
Transaction isolation: TRANSACTION_REPEATABLE_READ
Beeline version 0.12.0 by Apache Hive
0: jdbc:hive2://localhost:10000> select null;
org.apache.thrift.transport.TTransportException
	at org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132)
	at org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
	at org.apache.thrift.transport.TSaslTransport.readLength(TSaslTransport.java:346)
	at org.apache.thrift.transport.TSaslTransport.readFrame(TSaslTransport.java:423)
	at org.apache.thrift.transport.TSaslTransport.read(TSaslTransport.java:405)

Server log:

19/08/07 09:34:07 ERROR TThreadPoolServer: Error occurred during processing of message.
java.lang.NullPointerException
	at org.apache.hive.service.cli.thrift.TRow$TRowStandardScheme.write(TRow.java:388)
	at org.apache.hive.service.cli.thrift.TRow$TRowStandardScheme.write(TRow.java:338)
	at org.apache.hive.service.cli.thrift.TRow.write(TRow.java:288)
	at org.apache.hive.service.cli.thrift.TRowSet$TRowSetStandardScheme.write(TRowSet.java:605)
	at org.apache.hive.service.cli.thrift.TRowSet$TRowSetStandardScheme.write(TRowSet.java:525)
	at org.apache.hive.service.cli.thrift.TRowSet.write(TRowSet.java:455)
	at org.apache.hive.service.cli.thrift.TFetchResultsResp$TFetchResultsRespStandardScheme.write(TFetchResultsResp.java:550)
	at org.apache.hive.service.cli.thrift.TFetchResultsResp$TFetchResultsRespStandardScheme.write(TFetchResultsResp.java:486)
	at org.apache.hive.service.cli.thrift.TFetchResultsResp.write(TFetchResultsResp.java:412)
	at org.apache.hive.service.cli.thrift.TCLIService$FetchResults_result$FetchResults_resultStandardScheme.write(TCLIService.java:13192)
	at org.apache.hive.service.cli.thrift.TCLIService$FetchResults_result$FetchResults_resultStandardScheme.write(TCLIService.java:13156)
	at org.apache.hive.service.cli.thrift.TCLIService$FetchResults_result.write(TCLIService.java:13107)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:58)
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
	at org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:53)
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:310)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:819)

How was this patch tested?

unit tests

[wangyum]

Hive 2.3 has fixed this issue:

spark/sql/hive-thriftserver/v2.3.5/src/main/java/org/apache/hive/service/cli/ColumnValue.java

Lines 209 to 210 in 3f102a8

	case NULL_TYPE:
	return stringValue((String)value);

[SparkQA]

Test build #108774 has finished for PR 25378 at commit 4c838b2.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

Merged to master.