[ 
https://issues.apache.org/jira/browse/SQOOP-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eugen Stoianovici updated SQOOP-2791:
-------------------------------------
    Description: 
SQOOP always fails with a syntax error when specifying an alias on the split 
column of the source query.

{code}
$ sqoop import \
  --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
t1.i = t2.i' \
  --target-dir /user/eugen/sqoop1 \
  --split-by t1.i \
  --connect jdbc:mysql://example.com/eugen \
  --username usr1 \
  --password-file /user/eugen/sqoop.password
{code}

Results in:
{code}
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
't1.i' in 'field list'
{code}

Stack trace:
{code}
ERROR tool.ImportTool: Encountered IOException running import job: 
java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 
Unknown column 't1.i' in 'field list'
        at 
org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java:181)
        at 
org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:301)
        at 
org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:318)
        at 
org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:196)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
        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:1657)
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308)
        at 
org.apache.sqoop.mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:196)
        at 
org.apache.sqoop.mapreduce.ImportJobBase.runJob(ImportJobBase.java:169)
        at 
org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:266)
        at org.apache.sqoop.manager.SqlManager.importQuery(SqlManager.java:736)
        at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:499)
        at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
        at org.apache.sqoop.Sqoop.run(Sqoop.java:143)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179)
        at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218)
        at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227)
        at org.apache.sqoop.Sqoop.main(Sqoop.java:236)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown 
column 't1.i' in 'field list'
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        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:1052)
        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:2619)
        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2569)
        at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1524)
        at 
org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java:149)
        ... 22 more
{code}

The query failing in this case is:
{code}
  SELECT MIN(t1.i), MAX(t1.i) FROM (SELECT t1.i as something, t2.j FROM t1, t2 
WHERE  (1 = 1)  AND t1.i = t2.i) AS t1
{code}

This is the query for generating the splits. We can rewrite the scenario to 
make this particular query successful:

{code}
sqoop import \
  --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
t1.i = t2.i' \
  --target-dir /user/eugen/sqoop1 \
  --split-by something \
  --connect jdbc:mysql://example.com/eugen \
  --username usr1 \
  --password-file /user/eugen/sqoop.password
{code}

This results in:
{code}
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
'something' in 'where clause'
{code}

Stack trace:
{code}
 Error: java.io.IOException: SQLException in nextKeyValue
        at 
org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:277)
        at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
        at 
org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
        at 
org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
        at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
        at 
org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
        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:1657)
        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown 
column 'something' in 'where clause'
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        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:1052)
        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.executeQuery(PreparedStatement.java:2283)
        at 
org.apache.sqoop.mapreduce.db.DBRecordReader.executeQuery(DBRecordReader.java:111)
        at 
org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:235)
        ... 12 more
{code}

The query failing in this case is:
{code}
  SELECT t1.i as something, t2.j FROM t1, t2 WHERE ( something >= ? ) AND ( 
something < ? ) AND t1.i = t2.i
{code}



  was:
SQOOP always fails with a syntax error when specifying an alias on the split 
column of the source query.

{code}
$ sqoop import \
  --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
t1.i = t2.i' \
  --target-dir /user/eugen/sqoop1 \
  --split-by t1.i \
  --connect jdbc:mysql://example.com/eugen \
  --username usr1 \
  --password-file /user/eugen/sqoop.password
{code}

Results in:
{code}
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
't1.i' in 'field list'
{code}

The query failing in this case is:
{code}
  SELECT MIN(t1.i), MAX(t1.i) FROM (SELECT t1.i as something, t2.j FROM t1, t2 
WHERE  (1 = 1)  AND t1.i = t2.i) AS t1
{code}

This is the query for generating the splits. We can rewrite the scenario to 
make this particular query successful:

{code}
sqoop import \
  --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
t1.i = t2.i' \
  --target-dir /user/eugen/sqoop1 \
  --split-by something \
  --connect jdbc:mysql://example.com/eugen \
  --username usr1 \
  --password-file /user/eugen/sqoop.password
{code}

This results in:
{code}
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
'something' in 'where clause'
{code}

The query failing in this case is:
{code}
  SELECT t1.i as something, t2.j FROM t1, t2 WHERE ( something >= ? ) AND ( 
something < ? ) AND t1.i = t2.i
{code}




> Errors in import when using query with aliases as source
> --------------------------------------------------------
>
>                 Key: SQOOP-2791
>                 URL: https://issues.apache.org/jira/browse/SQOOP-2791
>             Project: Sqoop
>          Issue Type: Bug
>          Components: codegen
>            Reporter: Eugen Stoianovici
>            Priority: Minor
>
> SQOOP always fails with a syntax error when specifying an alias on the split 
> column of the source query.
> {code}
> $ sqoop import \
>   --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
> t1.i = t2.i' \
>   --target-dir /user/eugen/sqoop1 \
>   --split-by t1.i \
>   --connect jdbc:mysql://example.com/eugen \
>   --username usr1 \
>   --password-file /user/eugen/sqoop.password
> {code}
> Results in:
> {code}
> com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
> 't1.i' in 'field list'
> {code}
> Stack trace:
> {code}
> ERROR tool.ImportTool: Encountered IOException running import job: 
> java.io.IOException: 
> com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
> 't1.i' in 'field list'
>       at 
> org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java:181)
>       at 
> org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:301)
>       at 
> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:318)
>       at 
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:196)
>       at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
>       at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
>       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:1657)
>       at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
>       at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308)
>       at 
> org.apache.sqoop.mapreduce.ImportJobBase.doSubmitJob(ImportJobBase.java:196)
>       at 
> org.apache.sqoop.mapreduce.ImportJobBase.runJob(ImportJobBase.java:169)
>       at 
> org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:266)
>       at org.apache.sqoop.manager.SqlManager.importQuery(SqlManager.java:736)
>       at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:499)
>       at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
>       at org.apache.sqoop.Sqoop.run(Sqoop.java:143)
>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
>       at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179)
>       at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218)
>       at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227)
>       at org.apache.sqoop.Sqoop.main(Sqoop.java:236)
> Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown 
> column 't1.i' in 'field list'
>       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>       at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>       at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
>       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:1052)
>       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:2619)
>       at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2569)
>       at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1524)
>       at 
> org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.getSplits(DataDrivenDBInputFormat.java:149)
>       ... 22 more
> {code}
> The query failing in this case is:
> {code}
>   SELECT MIN(t1.i), MAX(t1.i) FROM (SELECT t1.i as something, t2.j FROM t1, 
> t2 WHERE  (1 = 1)  AND t1.i = t2.i) AS t1
> {code}
> This is the query for generating the splits. We can rewrite the scenario to 
> make this particular query successful:
> {code}
> sqoop import \
>   --query 'SELECT t1.i as something, t2.j FROM t1, t2 WHERE $CONDITIONS AND 
> t1.i = t2.i' \
>   --target-dir /user/eugen/sqoop1 \
>   --split-by something \
>   --connect jdbc:mysql://example.com/eugen \
>   --username usr1 \
>   --password-file /user/eugen/sqoop.password
> {code}
> This results in:
> {code}
> com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 
> 'something' in 'where clause'
> {code}
> Stack trace:
> {code}
>  Error: java.io.IOException: SQLException in nextKeyValue
>       at 
> org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:277)
>       at 
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
>       at 
> org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
>       at 
> org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
>       at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
>       at 
> org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
>       at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
>       at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
>       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:1657)
>       at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
> Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown 
> column 'something' in 'where clause'
>       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>       at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>       at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
>       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:1052)
>       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.executeQuery(PreparedStatement.java:2283)
>       at 
> org.apache.sqoop.mapreduce.db.DBRecordReader.executeQuery(DBRecordReader.java:111)
>       at 
> org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:235)
>       ... 12 more
> {code}
> The query failing in this case is:
> {code}
>   SELECT t1.i as something, t2.j FROM t1, t2 WHERE ( something >= ? ) AND ( 
> something < ? ) AND t1.i = t2.i
> {code}



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