[ 
https://issues.apache.org/jira/browse/HIVE-24448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sai Hemanth Gantasala reassigned HIVE-24448:
--------------------------------------------

    Assignee: Sai Hemanth Gantasala

> Support case-sensitivity for tables in REMOTE database.
> -------------------------------------------------------
>
>                 Key: HIVE-24448
>                 URL: https://issues.apache.org/jira/browse/HIVE-24448
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HiveServer2
>    Affects Versions: 4.0.0
>            Reporter: Naveen Gangam
>            Assignee: Sai Hemanth Gantasala
>            Priority: Major
>
> Hive tables are case-insensitive. So any case specified in user queries are 
> converted to lower case for query planning and all of the HMS metadata is 
> also persisted as lower case names.
> However, with REMOTE data sources, certain data source will support 
> case-sensitivity for tables. 
> So HiveServer2 query planner needs to preserve user-provided case to be used 
> with HMS APIs, for HMS to be able to fetch the metadata from a remote data 
> source.
> We now see something like this
> {noformat}
> 2020-11-25T16:45:36,402  WARN [HiveServer2-Handler-Pool: Thread-76] 
> thrift.ThriftCLIService: Error executing statement: 
> org.apache.hive.service.cli.HiveSQLException: Error while compiling 
> statement: FAILED: RuntimeException 
> MetaException(message:org.apache.hadoop.hive.serde2.SerDeException 
> org.apache.hive.storage.jdbc.exception.HiveJdbcDatabaseAccessException: Error 
> while trying to get column names: Table 'hive1.txns' doesn't exist)
>       at 
> org.apache.hive.service.cli.operation.Operation.toSQLException(Operation.java:365)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:206)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.runInternal(SQLOperation.java:262)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.operation.Operation.run(Operation.java:277) 
> ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementInternal(HiveSessionImpl.java:560)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementAsync(HiveSessionImpl.java:545)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source) ~[?:?]
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_231]
>       at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_231]
>       at 
> org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:78)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.session.HiveSessionProxy.access$000(HiveSessionProxy.java:36)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.session.HiveSessionProxy$1.run(HiveSessionProxy.java:63)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at java.security.AccessController.doPrivileged(Native Method) 
> ~[?:1.8.0_231]
>       at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_231]
>       at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1682)
>  ~[hadoop-common-3.1.0.jar:?]
>       at 
> org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:59)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at com.sun.proxy.$Proxy43.executeStatementAsync(Unknown Source) ~[?:?]
>       at 
> org.apache.hive.service.cli.CLIService.executeStatementAsync(CLIService.java:315)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.thrift.ThriftCLIService.ExecuteStatement(ThriftCLIService.java:571)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.rpc.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1550)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.rpc.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1530)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:38) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:56)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:313)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>  ~[?:1.8.0_231]
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>  ~[?:1.8.0_231]
>       at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231]
> Caused by: java.lang.RuntimeException: 
> MetaException(message:org.apache.hadoop.hive.serde2.SerDeException 
> org.apache.hive.storage.jdbc.exception.HiveJdbcDatabaseAccessException: Error 
> while trying to get column names: Table 'hive1.txns' doesn't exist)
>       at 
> org.apache.hadoop.hive.ql.metadata.Table.getDeserializerFromMetaStore(Table.java:325)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.metadata.Table.getDeserializer(Table.java:305) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genTablePlan(SemanticAnalyzer.java:11342)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:11701)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:11660)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genOPTree(SemanticAnalyzer.java:12442)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:718)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12553)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:443)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:302)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Compiler.analyze(Compiler.java:223) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Compiler.compile(Compiler.java:104) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:469) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:421) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:385) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:379) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:125)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:199)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       ... 26 more
> Caused by: org.apache.hadoop.hive.metastore.api.MetaException: 
> org.apache.hadoop.hive.serde2.SerDeException 
> org.apache.hive.storage.jdbc.exception.HiveJdbcDatabaseAccessException: Error 
> while trying to get column names: Table 'hive1.txns' doesn't exist
>       at 
> org.apache.hadoop.hive.metastore.HiveMetaStoreUtils.getDeserializer(HiveMetaStoreUtils.java:98)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.metastore.HiveMetaStoreUtils.getDeserializer(HiveMetaStoreUtils.java:77)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.metadata.Table.getDeserializerFromMetaStore(Table.java:323)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.metadata.Table.getDeserializer(Table.java:305) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genTablePlan(SemanticAnalyzer.java:11342)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:11701)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:11660)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genOPTree(SemanticAnalyzer.java:12442)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:718)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12553)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:443)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:302)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Compiler.analyze(Compiler.java:223) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Compiler.compile(Compiler.java:104) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:469) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:421) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:385) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:379) 
> ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:125)
>  ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:199)
>  ~[hive-service-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
> {noformat}



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