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From "Khurram Faraaz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2688) Use of ORDER BY on right side of Union All results in SqlValidatorException
Date Sat, 04 Apr 2015 04:48:33 GMT
Khurram Faraaz created DRILL-2688:
-------------------------------------

             Summary: Use of ORDER BY on right side of Union All results in SqlValidatorException
                 Key: DRILL-2688
                 URL: https://issues.apache.org/jira/browse/DRILL-2688
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 0.9.0
         Environment:  9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580: Exit early from
HashJoinBatch if build side is empty | 26.03.2015 @ 16:13:53 EDT
            Reporter: Khurram Faraaz
            Assignee: Jinfeng Ni


Order by in the right leg of Union All results in SqlValidatorException.
Executing the query individually (the query that is on right side of Union All) gives expected
results and no Exceptions are seen. However, executing the query as part of the right leg
of Union All results in Exception.

Tests were executed on 4 node cluster on CentOS. Both sides of Union All got input from CSV
files.

The query below returns correct results when executed individually. (this is the same query
used on right side of Union All query)
{code}
0: jdbc:drill:> select columns[0] from `testWindow.csv` t2 where t2.columns[0] is not null
group by columns[0] order by columns[0];
+------------+
|   EXPR$0   |
+------------+
| 10         |
| 100        |
| 113        |
| 119        |
| 2          |
| 50         |
| 55         |
| 57         |
| 61         |
| 67         |
| 89         |
+------------+
11 rows selected (0.265 seconds)
{code}

Note that the Union All query works when there is no order by in the right leg.
{code}
0: jdbc:drill:> select columns[0] from `employee.csv` t1 where t1.columns[0]=1 union all
select columns[0] from `testWindow.csv` t2 where t2.columns[0] is not null group by columns[0];
+------------+
|   EXPR$0   |
+------------+
| 1          |
| 100        |
| 10         |
| 2          |
| 50         |
| 55         |
| 67         |
| 113        |
| 119        |
| 89         |
| 57         |
| 61         |
+------------+
12 rows selected (0.175 seconds)
{code}

In this case we do use an order by on the right side of Union All, which results in SqlValidatorException.
Same query as above, except that we have an order by clause in the query on the right side
of Union All.

{code}
0: jdbc:drill:> select columns[0] from `employee.csv` t1 where t1.columns[0]=1 union all
select columns[0] from `testWindow.csv` t2 where t2.columns[0] is not null group by columns[0]
order by columns[0];
Query failed: SqlValidatorException: Column 'columns' not found in any table

Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Stack trace from drillbit.log 

{code}
2015-04-04 04:31:22,882 [2ae096e5-4085-de95-5642-ae10d320a8f7:foreman] ERROR o.a.drill.exec.work.foreman.Foreman
- Error c6a60f71-c959-4ae5-ba8c-23b9c7b6bb7e: SqlValidatorException: Column 'columns' not
found in any table
org.apache.drill.exec.planner.sql.QueryInputException: Failure validating SQL. org.eigenbase.util.EigenbaseContextException:
From line 1, column 178 to line 1, column 184: Column 'columns' not found in any table
        at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:147)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
Caused by: net.hydromatic.optiq.tools.ValidationException: org.eigenbase.util.EigenbaseContextException:
From line 1, column 178 to line 1, column 184: Column 'columns' not found in any table
        at net.hydromatic.optiq.prepare.PlannerImpl.validate(PlannerImpl.java:176) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.validateNode(DefaultSqlHandler.java:157)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:133)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
        ... 5 common frames omitted
Caused by: org.eigenbase.util.EigenbaseContextException: From line 1, column 178 to line 1,
column 184: Column 'columns' not found in any table
        at sun.reflect.GeneratedConstructorAccessor68.newInstance(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
~[na:1.7.0_75]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[na:1.7.0_75]
        at org.eigenbase.resource.Resources$ExInstWithCause.ex(Resources.java:348) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlUtil.newContextException(SqlUtil.java:673) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlUtil.newContextException(SqlUtil.java:661) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:3588)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.EmptyScope.findQualifyingTableName(EmptyScope.java:95)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.ListScope.findQualifyingTableName(ListScope.java:107)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.DelegatingScope.findQualifyingTableName(DelegatingScope.java:104)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:144)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.OrderByScope.fullyQualify(OrderByScope.java:82) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:4058)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:4038)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlIdentifier.accept(SqlIdentifier.java:222) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:126)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:93)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlOperator.acceptCall(SqlOperator.java:688) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl$Expander.visitScoped(SqlValidatorImpl.java:4090)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:49) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:31) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlCall.accept(SqlCall.java:125) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.expand(SqlValidatorImpl.java:3734)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validateOrderList(SqlValidatorImpl.java:2939)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:2829)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:85)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:785)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:774)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.SqlSelect.validate(SqlSelect.java:211) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:748)
~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:464)
~[optiq-core-0.9-drill-r20.jar:na]
        at net.hydromatic.optiq.prepare.PlannerImpl.validate(PlannerImpl.java:174) ~[optiq-core-0.9-drill-r20.jar:na]
        ... 8 common frames omitted
Caused by: org.eigenbase.sql.validate.SqlValidatorException: Column 'columns' not found in
any table
        at sun.reflect.GeneratedConstructorAccessor69.newInstance(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
~[na:1.7.0_75]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[na:1.7.0_75]
        at org.eigenbase.resource.Resources$ExInstWithCause.ex(Resources.java:348) ~[optiq-core-0.9-drill-r20.jar:na]
        at org.eigenbase.resource.Resources$ExInst.ex(Resources.java:457) ~[optiq-core-0.9-drill-r20.jar:na]
        ... 37 common frames omitted
{code}



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