Github user gatorsmile commented on the pull request:
https://github.com/apache/spark/pull/12134#issuecomment-204861588
In SQL Context, the plan is wrong if we use CREATE VIEW AS SELECT. We need
to
```scala
sql("CREATE VIEW testView AS SELECT * FROM jt").explain(true)
```
```
== Parsed Logical Plan ==
'Project [*]
+- 'UnresolvedRelation `jt`, None
== Analyzed Logical Plan ==
intType: int, stringType: string, dateType: date, timestampType: timestamp,
doubleType: double, bigintType: bigint, tinyintType: tinyint, decimalType:
decimal(10,0), fixedDecimalType: decimal(5,1), binaryType: binary, booleanType:
boolean, smallIntType: smallint, floatType: float, mapType: map<string,string>,
arrayType: array<string>, structType: struct<f1:string,f2:int>
Project
[intType#155,stringType#156,dateType#157,timestampType#158,doubleType#159,bigintType#160L,tinyintType#161,decimalType#162,fixedDecimalType#163,binaryType#164,booleanType#165,smallIntType#166,floatType#167,mapType#168,arrayType#169,structType#170]
+- SubqueryAlias jt
+-
Relation[intType#155,stringType#156,dateType#157,timestampType#158,doubleType#159,bigintType#160L,tinyintType#161,decimalType#162,fixedDecimalType#163,binaryType#164,booleanType#165,smallIntType#166,floatType#167,mapType#168,arrayType#169,structType#170]
SimpleDDLScan(1,10,test1)
== Optimized Logical Plan ==
Relation[intType#155,stringType#156,dateType#157,timestampType#158,doubleType#159,bigintType#160L,tinyintType#161,decimalType#162,fixedDecimalType#163,binaryType#164,booleanType#165,smallIntType#166,floatType#167,mapType#168,arrayType#169,structType#170]
SimpleDDLScan(1,10,test1)
== Physical Plan ==
WholeStageCodegen
: +- Scan
SimpleDDLScan(1,10,test1)[intType#155,stringType#156,dateType#157,timestampType#158,doubleType#159,bigintType#160L,tinyintType#161,decimalType#162,fixedDecimalType#163,binaryType#164,booleanType#165,smallIntType#166,floatType#167,mapType#168,arrayType#169,structType#170]
```
The expected one should be like
```
== Parsed Logical Plan ==
'CreateViewAsSelect
CatalogTable(`testView`,CatalogTableType(VIRTUAL_VIEW),CatalogStorageFormat(None,None,None,None,Map()),List(),List(),List(),0,1459654853237,1459654853237,Map(),Some(SELECT
* FROM jt),Some(SELECT * FROM jt)), false, false, CREATE VIEW testView AS
SELECT * FROM jt
+- 'Project [*]
+- 'UnresolvedRelation `jt`, None
== Analyzed Logical Plan ==
CreateViewAsSelect
CatalogTable(`default`.`testview`,CatalogTableType(VIRTUAL_VIEW),CatalogStorageFormat(None,None,None,None,Map()),List(),List(),List(),0,1459654853237,1459654853237,Map(),Some(SELECT
* FROM jt),Some(SELECT * FROM jt)), Project
[intType#0,stringType#1,dateType#2,timestampType#3,doubleType#4,bigintType#5L,tinyintType#6,decimalType#7,fixedDecimalType#8,binaryType#9,booleanType#10,smallIntType#11,floatType#12,mapType#13,arrayType#14,structType#15],
false, false
== Optimized Logical Plan ==
CreateViewAsSelect
CatalogTable(`default`.`testview`,CatalogTableType(VIRTUAL_VIEW),CatalogStorageFormat(None,None,None,None,Map()),List(),List(),List(),0,1459654853237,1459654853237,Map(),Some(SELECT
* FROM jt),Some(SELECT * FROM jt)), Project
[intType#0,stringType#1,dateType#2,timestampType#3,doubleType#4,bigintType#5L,tinyintType#6,decimalType#7,fixedDecimalType#8,binaryType#9,booleanType#10,smallIntType#11,floatType#12,mapType#13,arrayType#14,structType#15],
false, false
== Physical Plan ==
ExecutedCommand CreateViewAsSelect
CatalogTable(`default`.`testview`,CatalogTableType(VIRTUAL_VIEW),CatalogStorageFormat(None,None,None,None,Map()),List(),List(),List(),0,1459654853237,1459654853237,Map(),Some(SELECT
* FROM jt),Some(SELECT * FROM jt)), Project
[intType#0,stringType#1,dateType#2,timestampType#3,doubleType#4,bigintType#5L,tinyintType#6,decimalType#7,fixedDecimalType#8,binaryType#9,booleanType#10,smallIntType#11,floatType#12,mapType#13,arrayType#14,structType#15],
false, false
```
We must disable it in the parser to make sure CREATE VIEW is allowed only
in Hive Context.
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