Fix merge conflicts in coarse multuple executors #6
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…ansform Clause
#### What changes were proposed in this pull request?
```SQL
FROM
(FROM test SELECT TRANSFORM(key, value) USING 'cat' AS (`thing1` int, thing2 string)) t
SELECT thing1 + 1
```
This query returns an analysis error, like:
```
Failed to analyze query: org.apache.spark.sql.AnalysisException: cannot resolve '`thing1`' given input columns: [`thing1`, thing2]; line 3 pos 7
'Project [unresolvedalias(('thing1 + 1), None)]
+- SubqueryAlias t
+- ScriptTransformation [key#2,value#3], cat, [`thing1`#6,thing2#7], HiveScriptIOSchema(List(),List(),Some(org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe),Some(org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe),List((field.delim, )),List((field.delim, )),Some(org.apache.hadoop.hive.ql.exec.TextRecordReader),Some(org.apache.hadoop.hive.ql.exec.TextRecordWriter),false)
+- SubqueryAlias test
+- Project [_1#0 AS key#2,_2#1 AS value#3]
+- LocalRelation [_1#0,_2#1], [[1,1],[2,2],[3,3],[4,4],[5,5]]
```
The backpacks of \`thing1\` should be cleaned before entering Parser/Analyzer. This PR fixes this issue.
#### How was this patch tested?
Added a test case and modified an existing test case
Author: gatorsmile <[email protected]>
Closes apache#11415 from gatorsmile/scriptTransform.
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## What changes were proposed in this pull request?
This PR aims to optimize GroupExpressions by removing repeating expressions. `RemoveRepetitionFromGroupExpressions` is added.
**Before**
```scala
scala> sql("select a+1 from values 1,2 T(a) group by a+1, 1+a, A+1, 1+A").explain()
== Physical Plan ==
WholeStageCodegen
: +- TungstenAggregate(key=[(a#0 + 1)#6,(1 + a#0)apache#7,(A#0 + 1)apache#8,(1 + A#0)apache#9], functions=[], output=[(a + 1)#5])
: +- INPUT
+- Exchange hashpartitioning((a#0 + 1)#6, (1 + a#0)apache#7, (A#0 + 1)apache#8, (1 + A#0)apache#9, 200), None
+- WholeStageCodegen
: +- TungstenAggregate(key=[(a#0 + 1) AS (a#0 + 1)#6,(1 + a#0) AS (1 + a#0)apache#7,(A#0 + 1) AS (A#0 + 1)apache#8,(1 + A#0) AS (1 + A#0)apache#9], functions=[], output=[(a#0 + 1)#6,(1 + a#0)apache#7,(A#0 + 1)apache#8,(1 + A#0)apache#9])
: +- INPUT
+- LocalTableScan [a#0], [[1],[2]]
```
**After**
```scala
scala> sql("select a+1 from values 1,2 T(a) group by a+1, 1+a, A+1, 1+A").explain()
== Physical Plan ==
WholeStageCodegen
: +- TungstenAggregate(key=[(a#0 + 1)#6], functions=[], output=[(a + 1)#5])
: +- INPUT
+- Exchange hashpartitioning((a#0 + 1)#6, 200), None
+- WholeStageCodegen
: +- TungstenAggregate(key=[(a#0 + 1) AS (a#0 + 1)#6], functions=[], output=[(a#0 + 1)#6])
: +- INPUT
+- LocalTableScan [a#0], [[1],[2]]
```
## How was this patch tested?
Pass the Jenkins tests (with a new testcase)
Author: Dongjoon Hyun <[email protected]>
Closes apache#12590 from dongjoon-hyun/SPARK-14830.
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Trying again... I think I merged the wrong way around last time.
Fixed conflicts so it can be merged with master. Let me know if I messed up. The conflict was in
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scalaand theexecutorTerminatedfunction.