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From "Krishnama Raju K (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-20554) Unable to drop an external table after renaming it.
Date Thu, 13 Sep 2018 20:13:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Krishnama Raju K updated HIVE-20554:
------------------------------------
    Description: 
Unable to drop an external partitioned table after renaming it. Getting the following exception, 

 
{noformat}
java.sql.BatchUpdateException: Cannot delete or update a parent row: a foreign key constraint
fails ("hive"."PART_COL_STATS", CONSTRAINT "PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES
"PARTITIONS" ("PART_ID")) 
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2024) 
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1449) 
at com.jolbox.bonecp.StatementHandle.executeBatch(StatementHandle.java:424) 
at org.datanucleus.store.rdbms.ParamLoggingPreparedStatement.executeBatch(ParamLoggingPreparedStatement.java:366) 
at org.datanucleus.store.rdbms.SQLController.processConnectionStatement(SQLController.java:676) 
at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:204) 
at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:176) 
at org.datanucleus.store.rdbms.scostore.JoinMapStore.clearInternal(JoinMapStore.java:900) 
at org.datanucleus.store.rdbms.scostore.JoinMapStore.clear(JoinMapStore.java:449) 
at org.datanucleus.store.types.wrappers.backed.Map.clear(Map.java:605) 
at org.datanucleus.store.rdbms.mapping.java.MapMapping.preDelete(MapMapping.java:252) 
at org.datanucleus.store.rdbms.request.DeleteRequest.execute(DeleteRequest.java:193) 
at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObjectFromTable(RDBMSPersistenceHandler.java:499) 
at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObject(RDBMSPersistenceHandler.java:470) 
at org.datanucleus.state.AbstractStateManager.internalDeletePersistent(AbstractStateManager.java:832) 
at org.datanucleus.state.StateManagerImpl.deletePersistent(StateManagerImpl.java:4244) 
at org.datanucleus.ExecutionContextImpl.deleteObjectInternal(ExecutionContextImpl.java:2395) 
at org.datanucleus.ExecutionContextImpl.deleteObjectWork(ExecutionContextImpl.java:2317) 
at org.datanucleus.ExecutionContextImpl.deleteObjects(ExecutionContextImpl.java:2209) 
at org.datanucleus.ExecutionContextThreadedImpl.deleteObjects(ExecutionContextThreadedImpl.java:259) 
at org.datanucleus.store.query.Query.performDeletePersistentAll(Query.java:2133) 
at org.datanucleus.store.query.AbstractJavaQuery.performDeletePersistentAll(AbstractJavaQuery.java:114) 
at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:2085) 
at org.datanucleus.api.jdo.JDOQuery.deletePersistentInternal(JDOQuery.java:441) 
at org.datanucleus.api.jdo.JDOQuery.deletePersistentAll(JDOQuery.java:428) 
at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitionsNoTxn(ObjectStore.java:2421) 
at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitions(ObjectStore.java:1805) 
at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:103) 
at com.sun.proxy.$Proxy10.dropPartitions(Unknown Source) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.dropPartitionsAndGetLocations(HiveMetaStore.java:1838) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_core(HiveMetaStore.java:1673) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_with_environment_context(HiveMetaStore.java:1859) 
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147) 
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105) 
at com.sun.proxy.$Proxy12.drop_table_with_environment_context(Unknown Source) 
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9523) 
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9507) 
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) 
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:551) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:546) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:422) 
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge.java:546) 
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at java.lang.Thread.run(Thread.java:745) 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot
delete or update a parent row: a foreign key constraint fails ("hive"."PART_COL_STATS", CONSTRAINT
"PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES "PARTITIONS" ("PART_ID")) 
at sun.reflect.GeneratedConstructorAccessor344.newInstance(Unknown Source) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
at com.mysql.jdbc.Util.getInstance(Util.java:386) 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1040) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529) 
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990) 
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151) 
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625) 
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119) 
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2415) 
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1979) 
... 54 more{noformat}
 

 

Renaming was done using the following command, 
{noformat}
hive -e "alter table <DB>.<OLD-Table-name> rename to <DB>.<New-Table-name>; {noformat}
 

 

 

STEPS TO REPRODUCE

===================

1. Create an external table in hive.

2. . Add sample data to the table.

3. Rename the table using the above command.

4. Drop the renamed table. 

 

 

 

 

 

  was:
Unable to drop an external partitioned table after renaming it. Getting the following exception, 

 
{noformat}

java.sql.BatchUpdateException: Cannot delete or update a parent row: a foreign key constraint
fails ("hive"."PART_COL_STATS", CONSTRAINT "PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES
"PARTITIONS" ("PART_ID")) 
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2024) 
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1449) 
at com.jolbox.bonecp.StatementHandle.executeBatch(StatementHandle.java:424) 
at org.datanucleus.store.rdbms.ParamLoggingPreparedStatement.executeBatch(ParamLoggingPreparedStatement.java:366) 
at org.datanucleus.store.rdbms.SQLController.processConnectionStatement(SQLController.java:676) 
at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:204) 
at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:176) 
at org.datanucleus.store.rdbms.scostore.JoinMapStore.clearInternal(JoinMapStore.java:900) 
at org.datanucleus.store.rdbms.scostore.JoinMapStore.clear(JoinMapStore.java:449) 
at org.datanucleus.store.types.wrappers.backed.Map.clear(Map.java:605) 
at org.datanucleus.store.rdbms.mapping.java.MapMapping.preDelete(MapMapping.java:252) 
at org.datanucleus.store.rdbms.request.DeleteRequest.execute(DeleteRequest.java:193) 
at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObjectFromTable(RDBMSPersistenceHandler.java:499) 
at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObject(RDBMSPersistenceHandler.java:470) 
at org.datanucleus.state.AbstractStateManager.internalDeletePersistent(AbstractStateManager.java:832) 
at org.datanucleus.state.StateManagerImpl.deletePersistent(StateManagerImpl.java:4244) 
at org.datanucleus.ExecutionContextImpl.deleteObjectInternal(ExecutionContextImpl.java:2395) 
at org.datanucleus.ExecutionContextImpl.deleteObjectWork(ExecutionContextImpl.java:2317) 
at org.datanucleus.ExecutionContextImpl.deleteObjects(ExecutionContextImpl.java:2209) 
at org.datanucleus.ExecutionContextThreadedImpl.deleteObjects(ExecutionContextThreadedImpl.java:259) 
at org.datanucleus.store.query.Query.performDeletePersistentAll(Query.java:2133) 
at org.datanucleus.store.query.AbstractJavaQuery.performDeletePersistentAll(AbstractJavaQuery.java:114) 
at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:2085) 
at org.datanucleus.api.jdo.JDOQuery.deletePersistentInternal(JDOQuery.java:441) 
at org.datanucleus.api.jdo.JDOQuery.deletePersistentAll(JDOQuery.java:428) 
at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitionsNoTxn(ObjectStore.java:2421) 
at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitions(ObjectStore.java:1805) 
at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:103) 
at com.sun.proxy.$Proxy10.dropPartitions(Unknown Source) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.dropPartitionsAndGetLocations(HiveMetaStore.java:1838) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_core(HiveMetaStore.java:1673) 
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_with_environment_context(HiveMetaStore.java:1859) 
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147) 
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105) 
at com.sun.proxy.$Proxy12.drop_table_with_environment_context(Unknown Source) 
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9523) 
at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9507) 
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) 
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:551) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:546) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:422) 
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866) 
at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge.java:546) 
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at java.lang.Thread.run(Thread.java:745) 
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot
delete or update a parent row: a foreign key constraint fails ("hive"."PART_COL_STATS", CONSTRAINT
"PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES "PARTITIONS" ("PART_ID")) 
at sun.reflect.GeneratedConstructorAccessor344.newInstance(Unknown Source) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
at com.mysql.jdbc.Util.getInstance(Util.java:386) 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1040) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529) 
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990) 
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151) 
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625) 
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119) 
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2415) 
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1979) 
... 54 more{noformat}
 

 

Renaming was done using the following command, 
{noformat}
hive -e "alter table <DB>.<OLD-Table-name> rename to <DB>.<New-Table-name>; {noformat}
 

 

 

STEPS TO REPRODUCE

===================

1. Create an external table in hive.

2. Rename the table using the above command.

3. Add sample data to the table.

4. Drop the renamed table. 

 

 

 

 

 


> Unable to drop an external table after renaming it.
> ---------------------------------------------------
>
>                 Key: HIVE-20554
>                 URL: https://issues.apache.org/jira/browse/HIVE-20554
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive, HiveServer2
>    Affects Versions: 1.2.0, 2.1.0
>            Reporter: Krishnama Raju K
>            Priority: Major
>
> Unable to drop an external partitioned table after renaming it. Getting the following
exception, 
>  
> {noformat}
> java.sql.BatchUpdateException: Cannot delete or update a parent row: a foreign key constraint
fails ("hive"."PART_COL_STATS", CONSTRAINT "PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES
"PARTITIONS" ("PART_ID")) 
> at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2024) 
> at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1449) 
> at com.jolbox.bonecp.StatementHandle.executeBatch(StatementHandle.java:424) 
> at org.datanucleus.store.rdbms.ParamLoggingPreparedStatement.executeBatch(ParamLoggingPreparedStatement.java:366) 
> at org.datanucleus.store.rdbms.SQLController.processConnectionStatement(SQLController.java:676) 
> at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:204) 
> at org.datanucleus.store.rdbms.SQLController.getStatementForUpdate(SQLController.java:176) 
> at org.datanucleus.store.rdbms.scostore.JoinMapStore.clearInternal(JoinMapStore.java:900) 
> at org.datanucleus.store.rdbms.scostore.JoinMapStore.clear(JoinMapStore.java:449) 
> at org.datanucleus.store.types.wrappers.backed.Map.clear(Map.java:605) 
> at org.datanucleus.store.rdbms.mapping.java.MapMapping.preDelete(MapMapping.java:252) 
> at org.datanucleus.store.rdbms.request.DeleteRequest.execute(DeleteRequest.java:193) 
> at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObjectFromTable(RDBMSPersistenceHandler.java:499) 
> at org.datanucleus.store.rdbms.RDBMSPersistenceHandler.deleteObject(RDBMSPersistenceHandler.java:470) 
> at org.datanucleus.state.AbstractStateManager.internalDeletePersistent(AbstractStateManager.java:832) 
> at org.datanucleus.state.StateManagerImpl.deletePersistent(StateManagerImpl.java:4244) 
> at org.datanucleus.ExecutionContextImpl.deleteObjectInternal(ExecutionContextImpl.java:2395) 
> at org.datanucleus.ExecutionContextImpl.deleteObjectWork(ExecutionContextImpl.java:2317) 
> at org.datanucleus.ExecutionContextImpl.deleteObjects(ExecutionContextImpl.java:2209) 
> at org.datanucleus.ExecutionContextThreadedImpl.deleteObjects(ExecutionContextThreadedImpl.java:259) 
> at org.datanucleus.store.query.Query.performDeletePersistentAll(Query.java:2133) 
> at org.datanucleus.store.query.AbstractJavaQuery.performDeletePersistentAll(AbstractJavaQuery.java:114) 
> at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:2085) 
> at org.datanucleus.api.jdo.JDOQuery.deletePersistentInternal(JDOQuery.java:441) 
> at org.datanucleus.api.jdo.JDOQuery.deletePersistentAll(JDOQuery.java:428) 
> at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitionsNoTxn(ObjectStore.java:2421) 
> at org.apache.hadoop.hive.metastore.ObjectStore.dropPartitions(ObjectStore.java:1805) 
> at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source) 
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
> at java.lang.reflect.Method.invoke(Method.java:498) 
> at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:103) 
> at com.sun.proxy.$Proxy10.dropPartitions(Unknown Source) 
> at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.dropPartitionsAndGetLocations(HiveMetaStore.java:1838) 
> at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_core(HiveMetaStore.java:1673) 
> at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_with_environment_context(HiveMetaStore.java:1859) 
> at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source) 
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
> at java.lang.reflect.Method.invoke(Method.java:498) 
> at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147) 
> at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105) 
> at com.sun.proxy.$Proxy12.drop_table_with_environment_context(Unknown Source) 
> at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9523) 
> at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$drop_table_with_environment_context.getResult(ThriftHiveMetastore.java:9507) 
> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) 
> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) 
> at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:551) 
> at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:546) 
> at java.security.AccessController.doPrivileged(Native Method) 
> at javax.security.auth.Subject.doAs(Subject.java:422) 
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866) 
> at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge.java:546) 
> at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) 
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
> at java.lang.Thread.run(Thread.java:745) 
> Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException:
Cannot delete or update a parent row: a foreign key constraint fails ("hive"."PART_COL_STATS",
CONSTRAINT "PART_COL_STATS_FK" FOREIGN KEY ("PART_ID") REFERENCES "PARTITIONS" ("PART_ID")) 
> at sun.reflect.GeneratedConstructorAccessor344.newInstance(Unknown Source) 
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
> at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
> at com.mysql.jdbc.Util.getInstance(Util.java:386) 
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1040) 
> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597) 
> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529) 
> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990) 
> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151) 
> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625) 
> at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119) 
> at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2415) 
> at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1979) 
> ... 54 more{noformat}
>  
>  
> Renaming was done using the following command, 
> {noformat}
> hive -e "alter table <DB>.<OLD-Table-name> rename to <DB>.<New-Table-name>; {noformat}
>  
>  
>  
> STEPS TO REPRODUCE
> ===================
> 1. Create an external table in hive.
> 2. . Add sample data to the table.
> 3. Rename the table using the above command.
> 4. Drop the renamed table. 
>  
>  
>  
>  
>  



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