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| author | gatorsmile <gatorsmile@gmail.com> | 2016-05-10 11:53:37 +0200 |
|---|---|---|
| committer | Herman van Hovell <hvanhovell@questtec.nl> | 2016-05-10 11:53:37 +0200 |
| commit | 570647267055cbe33291232b375e08fa1f5d8e7a (patch) | |
| tree | 5e13828fce2564824b32df9efcc0733e658c2d3d /project | |
| parent | f45379173bc3a3e657b6229bec2faeb409b6ad53 (diff) | |
| download | spark-570647267055cbe33291232b375e08fa1f5d8e7a.tar.gz spark-570647267055cbe33291232b375e08fa1f5d8e7a.tar.bz2 spark-570647267055cbe33291232b375e08fa1f5d8e7a.zip | |
[SPARK-15215][SQL] Fix Explain Parsing and Output
#### What changes were proposed in this pull request?
This PR is to address a few existing issues in `EXPLAIN`:
- The `EXPLAIN` options `LOGICAL | FORMATTED | EXTENDED | CODEGEN` should not be 0 or more match. It should 0 or one match. Parser does not allow users to use more than one option in a single command.
- The option `LOGICAL` is not supported. Issue an exception when users specify this option in the command.
- The output of `EXPLAIN ` contains a weird empty line when the output of analyzed plan is empty. We should remove it. For example:
```
== Parsed Logical Plan ==
CreateTable CatalogTable(`t`,CatalogTableType(MANAGED),CatalogStorageFormat(None,Some(org.apache.hadoop.mapred.TextInputFormat),Some(org.apache.hadoop.hive.ql.io. HiveIgnoreKeyTextOutputFormat),None,false,Map()),List(CatalogColumn(col,int,true,None)),List(),List(),List(),-1,,1462725171656,-1,Map(),None,None,None), false
== Analyzed Logical Plan ==
CreateTable CatalogTable(`t`,CatalogTableType(MANAGED),CatalogStorageFormat(None,Some(org.apache.hadoop.mapred.TextInputFormat),Some(org.apache.hadoop.hive.ql.io. HiveIgnoreKeyTextOutputFormat),None,false,Map()),List(CatalogColumn(col,int,true,None)),List(),List(),List(),-1,,1462725171656,-1,Map(),None,None,None), false
== Optimized Logical Plan ==
CreateTable CatalogTable(`t`,CatalogTableType(MANAGED),CatalogStorageFormat(None,Some(org.apache.hadoop.mapred.TextInputFormat),Some(org.apache.hadoop.hive.ql.io. HiveIgnoreKeyTextOutputFormat),None,false,Map()),List(CatalogColumn(col,int,true,None)),List(),List(),List(),-1,,1462725171656,-1,Map(),None,None,None), false
...
```
#### How was this patch tested?
Added and modified a few test cases
Author: gatorsmile <gatorsmile@gmail.com>
Closes #12991 from gatorsmile/explainCreateTable.
Diffstat (limited to 'project')
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