Github user xwu0226 commented on the pull request:
https://github.com/apache/spark/pull/12716#issuecomment-217264815
@liancheng I added the create view
[testcases](https://github.com/xwu0226/spark/blob/SPARK_14933/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLViewSuite.scala#L308-L335)..
If you see any other issues, please let me know. Thanks!
By the way I also tried `create view` on most recent master branch and
still can recreate the error:
```
scala> spark.sql("create view v_parquet_1 as select * from t_parquet")
java.lang.UnsupportedOperationException: unsupported plan
Relation[c1#16,c2#17] HadoopFiles
at
org.apache.spark.sql.catalyst.SQLBuilder.org$apache$spark$sql$catalyst$SQLBuilder$$toSQL(SQLBuilder.scala:191)
at
org.apache.spark.sql.catalyst.SQLBuilder.org$apache$spark$sql$catalyst$SQLBuilder$$toSQL(SQLBuilder.scala:149)
at
org.apache.spark.sql.catalyst.SQLBuilder.projectToSQL(SQLBuilder.scala:208)
at
org.apache.spark.sql.catalyst.SQLBuilder.org$apache$spark$sql$catalyst$SQLBuilder$$toSQL(SQLBuilder.scala:111)
at
org.apache.spark.sql.catalyst.SQLBuilder.org$apache$spark$sql$catalyst$SQLBuilder$$toSQL(SQLBuilder.scala:149)
at
org.apache.spark.sql.catalyst.SQLBuilder.projectToSQL(SQLBuilder.scala:208)
at
org.apache.spark.sql.catalyst.SQLBuilder.org$apache$spark$sql$catalyst$SQLBuilder$$toSQL(SQLBuilder.scala:111)
at org.apache.spark.sql.catalyst.SQLBuilder.toSQL(SQLBuilder.scala:81)
at
org.apache.spark.sql.execution.command.CreateViewCommand.prepareTable(views.scala:158)
at
org.apache.spark.sql.execution.command.CreateViewCommand.run(views.scala:115)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:62)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:60)
at
org.apache.spark.sql.execution.command.ExecutedCommandExec.doExecute(commands.scala:74)
at
org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:113)
at
org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:113)
at
org.apache.spark.sql.execution.SparkPlan$$anonfun$executeQuery$1.apply(SparkPlan.scala:132)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at
org.apache.spark.sql.execution.SparkPlan.executeQuery(SparkPlan.scala:129)
at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:112)
at
org.apache.spark.sql.execution.QueryExecution.toRdd$lzycompute(QueryExecution.scala:85)
at
org.apache.spark.sql.execution.QueryExecution.toRdd(QueryExecution.scala:85)
at org.apache.spark.sql.Dataset.<init>(Dataset.scala:186)
at org.apache.spark.sql.Dataset.<init>(Dataset.scala:167)
at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:62)
at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:551)
```
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