GitHub user dilipbiswal opened a pull request:
https://github.com/apache/spark/pull/11497
[SPARK-13651] Generator outputs are not resolved correctly resulting in run
time error
## What changes were proposed in this pull request?
```
Seq(("id1", "value1")).toDF("key", "value").registerTempTable("src")
sqlContext.sql("SELECT t1.* FROM src LATERAL VIEW explode(map('key1', 100,
'key2', 200)) t1 AS key, value")
```
Results in following logical plan
```
Project [key#2,value#3]
+- Generate
explode(HiveGenericUDF#org.apache.hadoop.hive.ql.udf.generic.GenericUDFMap(key1,100,key2,200)),
true, false, Some(genoutput), [key#2,value#3]
+- SubqueryAlias src
+- Project [_1#0 AS key#2,_2#1 AS value#3]
+- LocalRelation [_1#0,_2#1], [[id1,value1]]
```
In this case the generated outputs are wrongly resolved from its child
(LocalRelation) due to
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala#L537-L548
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration
tests, manual tests)
Added unit tests in hive/SQLQuerySuite and AnalysisSuite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dilipbiswal/spark spark-13651
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11497.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11497
----
commit cd57079a263309855df7dd70c2d30aa2eee2adbe
Author: Dilip Biswal <[email protected]>
Date: 2016-03-03T08:43:49Z
[SPARK-13651] Generator outputs are not resolved correctly resulting in
runtime error
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