Works for me on latest master.
scala> sql("explain codegen select 'a' as a group by 1").head
res3: org.apache.spark.sql.Row =
[Found 2 WholeStageCodegen subtrees.
== Subtree 1 / 2 ==
WholeStageCodegen
: +- TungstenAggregate(key=[], functions=[], output=[a#10])
: +- INPUT
+- Exchange SinglePartition, None
+- WholeStageCodegen
: +- TungstenAggregate(key=[], functions=[], output=[])
: +- INPUT
+- Scan OneRowRelation[]
Generated code:
/* 001 */ public Object generate(Object[] references) {
/* 002 */ return new GeneratedIterator(references);
/* 003 */ }
/* 004 */
/* 005 */ /** Codegened pipeline for:
/* 006 */ * TungstenAggregate(key=[], functions=[], output=[a#10])
/* 007 */ +- INPUT
/* 008 */ */
/* 009 */ final class GeneratedIterator extends
org.apache.spark.sql.execution.BufferedRowIterator {
/* 010 */ private Object[] references;
/* 011 */ ...
On Sun, Apr 3, 2016 at 9:38 PM, Jacek Laskowski <ja...@japila.pl> wrote:
> Hi,
>
> Looks related to the recent commit...
>
> Repository: spark
> Updated Branches:
> refs/heads/master 2262a9335 -> 1f0c5dceb
>
> [SPARK-14350][SQL] EXPLAIN output should be in a single cell
>
> Jacek
> 03.04.2016 7:00 PM "Ted Yu" <yuzhih...@gmail.com> napisał(a):
>
>> Hi,
>> Based on master branch refreshed today, I issued 'git clean -fdx' first.
>>
>> Then this command:
>> build/mvn clean -Phive -Phive-thriftserver -Pyarn -Phadoop-2.6
>> -Dhadoop.version=2.7.0 package -DskipTests
>>
>> I got the following error:
>>
>> scala> sql("explain codegen select 'a' as a group by 1").head
>> org.apache.spark.sql.catalyst.parser.ParseException:
>> extraneous input 'codegen' expecting {'(', 'SELECT', 'FROM', 'ADD',
>> 'DESC', 'WITH', 'VALUES', 'CREATE', 'TABLE', 'INSERT', 'DELETE',
>> 'DESCRIBE', 'EXPLAIN', 'LOGICAL', 'SHOW', 'USE', 'DROP', 'ALTER', 'MAP',
>> 'SET', 'START', 'COMMIT', 'ROLLBACK', 'REDUCE', 'EXTENDED', 'REFRESH',
>> 'CLEAR', 'CACHE', 'UNCACHE', 'FORMATTED', 'DFS', 'TRUNCATE', 'ANALYZE',
>> 'REVOKE', 'GRANT', 'LOCK', 'UNLOCK', 'MSCK', 'EXPORT', 'IMPORT',
>> 'LOAD'}(line 1, pos 8)
>>
>> == SQL ==
>> explain codegen select 'a' as a group by 1
>> --------^^^
>>
>> Can someone shed light ?
>>
>> Thanks
>>
>
