[jira] [Commented] (SPARK-22954) ANALYZE TABLE fails with NoSuchTableException for temporary tables (but should have reported "not supported on views")

2018-01-07 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16315336#comment-16315336
 ] 

Suchith J N commented on SPARK-22954:
-

I have opened a pull request. 

> ANALYZE TABLE fails with NoSuchTableException for temporary tables (but 
> should have reported "not supported on views")
> --
>
> Key: SPARK-22954
> URL: https://issues.apache.org/jira/browse/SPARK-22954
> Project: Spark
>  Issue Type: Bug
>  Components: SQL
>Affects Versions: 2.3.0
> Environment: {code}
> $ ./bin/spark-shell --version
> Welcome to
>     __
>  / __/__  ___ _/ /__
> _\ \/ _ \/ _ `/ __/  '_/
>/___/ .__/\_,_/_/ /_/\_\   version 2.3.0-SNAPSHOT
>   /_/
> Using Scala version 2.11.8, Java HotSpot(TM) 64-Bit Server VM, 1.8.0_152
> Branch master
> Compiled by user jacek on 2018-01-04T05:44:05Z
> Revision 7d045c5f00e2c7c67011830e2169a4e130c3ace8
> {code}
>Reporter: Jacek Laskowski
>Priority: Minor
>
> {{ANALYZE TABLE}} fails with {{NoSuchTableException: Table or view 'names' 
> not found in database 'default';}} for temporary tables (views) while the 
> reason is that it can only work with permanent tables (which [it can 
> report|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/command/AnalyzeTableCommand.scala#L38]
>  if it had a chance).
> {code}
> scala> names.createOrReplaceTempView("names")
> scala> sql("ANALYZE TABLE names COMPUTE STATISTICS")
> org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 
> 'names' not found in database 'default';
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.requireTableExists(SessionCatalog.scala:181)
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.getTableMetadata(SessionCatalog.scala:398)
>   at 
> org.apache.spark.sql.execution.command.AnalyzeTableCommand.run(AnalyzeTableCommand.scala:36)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:79)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$51.apply(Dataset.scala:3244)
>   at 
> org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
>   at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3243)
>   at org.apache.spark.sql.Dataset.(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:72)
>   at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:638)
>   ... 50 elided
> {code}



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[jira] [Commented] (SPARK-22954) ANALYZE TABLE fails with NoSuchTableException for temporary tables (but should have reported "not supported on views")

2018-01-05 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313956#comment-16313956
 ] 

Suchith J N commented on SPARK-22954:
-

I found another method in org.apache.spark.sql.catalyst.catalog.SessionCatalog 
- *getTempViewOrPermanentTableMetadata()*.

> ANALYZE TABLE fails with NoSuchTableException for temporary tables (but 
> should have reported "not supported on views")
> --
>
> Key: SPARK-22954
> URL: https://issues.apache.org/jira/browse/SPARK-22954
> Project: Spark
>  Issue Type: Bug
>  Components: SQL
>Affects Versions: 2.3.0
> Environment: {code}
> $ ./bin/spark-shell --version
> Welcome to
>     __
>  / __/__  ___ _/ /__
> _\ \/ _ \/ _ `/ __/  '_/
>/___/ .__/\_,_/_/ /_/\_\   version 2.3.0-SNAPSHOT
>   /_/
> Using Scala version 2.11.8, Java HotSpot(TM) 64-Bit Server VM, 1.8.0_152
> Branch master
> Compiled by user jacek on 2018-01-04T05:44:05Z
> Revision 7d045c5f00e2c7c67011830e2169a4e130c3ace8
> {code}
>Reporter: Jacek Laskowski
>Priority: Minor
>
> {{ANALYZE TABLE}} fails with {{NoSuchTableException: Table or view 'names' 
> not found in database 'default';}} for temporary tables (views) while the 
> reason is that it can only work with permanent tables (which [it can 
> report|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/command/AnalyzeTableCommand.scala#L38]
>  if it had a chance).
> {code}
> scala> names.createOrReplaceTempView("names")
> scala> sql("ANALYZE TABLE names COMPUTE STATISTICS")
> org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 
> 'names' not found in database 'default';
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.requireTableExists(SessionCatalog.scala:181)
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.getTableMetadata(SessionCatalog.scala:398)
>   at 
> org.apache.spark.sql.execution.command.AnalyzeTableCommand.run(AnalyzeTableCommand.scala:36)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:79)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$51.apply(Dataset.scala:3244)
>   at 
> org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
>   at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3243)
>   at org.apache.spark.sql.Dataset.(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:72)
>   at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:638)
>   ... 50 elided
> {code}



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[jira] [Commented] (SPARK-22954) ANALYZE TABLE fails with NoSuchTableException for temporary tables (but should have reported "not supported on views")

2018-01-05 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313915#comment-16313915
 ] 

Suchith J N commented on SPARK-22954:
-

I run the commands you mentioned. Actually, there are two catalogs and they are 
different. Try these out.

{code:java}
scala > names.sparkSession.catalog.tableExists("names")
res1: Boolean = true

scala> names.sparkSession.sessionState.catalog.tableExists 
(TableIdentifier("names"))
res2: Boolean = false
{code}

According to the stack trace, spark is looking up the sessionState.catalog. 
Actually, it is stored in sparkSession.catalog.

> ANALYZE TABLE fails with NoSuchTableException for temporary tables (but 
> should have reported "not supported on views")
> --
>
> Key: SPARK-22954
> URL: https://issues.apache.org/jira/browse/SPARK-22954
> Project: Spark
>  Issue Type: Bug
>  Components: SQL
>Affects Versions: 2.3.0
> Environment: {code}
> $ ./bin/spark-shell --version
> Welcome to
>     __
>  / __/__  ___ _/ /__
> _\ \/ _ \/ _ `/ __/  '_/
>/___/ .__/\_,_/_/ /_/\_\   version 2.3.0-SNAPSHOT
>   /_/
> Using Scala version 2.11.8, Java HotSpot(TM) 64-Bit Server VM, 1.8.0_152
> Branch master
> Compiled by user jacek on 2018-01-04T05:44:05Z
> Revision 7d045c5f00e2c7c67011830e2169a4e130c3ace8
> {code}
>Reporter: Jacek Laskowski
>Priority: Minor
>
> {{ANALYZE TABLE}} fails with {{NoSuchTableException: Table or view 'names' 
> not found in database 'default';}} for temporary tables (views) while the 
> reason is that it can only work with permanent tables (which [it can 
> report|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/command/AnalyzeTableCommand.scala#L38]
>  if it had a chance).
> {code}
> scala> names.createOrReplaceTempView("names")
> scala> sql("ANALYZE TABLE names COMPUTE STATISTICS")
> org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 
> 'names' not found in database 'default';
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.requireTableExists(SessionCatalog.scala:181)
>   at 
> org.apache.spark.sql.catalyst.catalog.SessionCatalog.getTableMetadata(SessionCatalog.scala:398)
>   at 
> org.apache.spark.sql.execution.command.AnalyzeTableCommand.run(AnalyzeTableCommand.scala:36)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
>   at 
> org.apache.spark.sql.execution.command.ExecutedCommandExec.executeCollect(commands.scala:79)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$6.apply(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$$anonfun$51.apply(Dataset.scala:3244)
>   at 
> org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
>   at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3243)
>   at org.apache.spark.sql.Dataset.(Dataset.scala:187)
>   at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:72)
>   at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:638)
>   ... 50 elided
> {code}



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[jira] [Issue Comment Deleted] (SPARK-22943) OneHotEncoder supports manual specification of categorySizes

2018-01-05 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22943:

Comment: was deleted

(was: I would like to work on this. Could someone tell me if they have already 
started work on this issue?)

> OneHotEncoder supports manual specification of categorySizes
> 
>
> Key: SPARK-22943
> URL: https://issues.apache.org/jira/browse/SPARK-22943
> Project: Spark
>  Issue Type: Improvement
>  Components: ML
>Affects Versions: 2.2.0
>Reporter: yuhao yang
>Priority: Minor
>
> OHE should support configurable categorySizes, as n-values in  
> http://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.OneHotEncoder.html.
>  which allows consistent and foreseeable conversion.



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[jira] [Commented] (SPARK-22943) OneHotEncoder supports manual specification of categorySizes

2018-01-05 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313241#comment-16313241
 ] 

Suchith J N commented on SPARK-22943:
-

I would like to work on this. Could someone tell me if they have already 
started work on this issue?

> OneHotEncoder supports manual specification of categorySizes
> 
>
> Key: SPARK-22943
> URL: https://issues.apache.org/jira/browse/SPARK-22943
> Project: Spark
>  Issue Type: Improvement
>  Components: ML
>Affects Versions: 2.2.0
>Reporter: yuhao yang
>Priority: Minor
>
> OHE should support configurable categorySizes, as n-values in  
> http://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.OneHotEncoder.html.
>  which allows consistent and foreseeable conversion.



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-03 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16310068#comment-16310068
 ] 

Suchith J N commented on SPARK-22553:
-

The change breaks 3 tests

1. *TableIdentifierParserSuite* : table identifier - strict keywords{code:java}
org.apache.spark.sql.catalyst.parser.ParseException: mismatched input 'from' 
expecting {'SELECT', 'ADD', 'AS', 'ALL', 'DISTINCT', 'WHERE',
{code}

2. *PlanParserSuite* : simple select query
{code:java}
org.apache.spark.sql.catalyst.parser.ParseException: no viable alternative at 
input 'select from'(line 1, pos 7)
{code}

3. *DataTypeParserSuite* : parse struct
{code:java}
org.apache.spark.sql.catalyst.parser.ParseException: mismatched input 'from' 
expecting {'SELECT', 'ADD', 'AS', 'ALL', 'DISTINCT', 'WHERE',
{code}

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Issue Comment Deleted] (SPARK-22553) Drop FROM in nonReserved

2018-01-03 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22553:

Comment: was deleted

(was: Shall I submit a PR?)

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307499#comment-16307499
 ] 

Suchith J N commented on SPARK-22553:
-

Shall I submit a PR?

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Comment Edited] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307467#comment-16307467
 ] 

Suchith J N edited comment on SPARK-22553 at 1/1/18 3:01 PM:
-

Removed FROM from nonReserved
[https://issues.apache.org/jira/secure/attachment/12904128/Removed_FROM_from_nonReserved_list.patch]


was (Author: suchithjn22):
Removed FROM from nonReserved

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Issue Comment Deleted] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22553:

Comment: was deleted

(was: {code}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{code}

)

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Updated] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22553:

Attachment: Removed_FROM_from_nonReserved_list.patch

Removed FROM from nonReserved

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
> Attachments: Removed_FROM_from_nonReserved_list.patch
>
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Comment Edited] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307466#comment-16307466
 ] 

Suchith J N edited comment on SPARK-22553 at 1/1/18 2:58 PM:
-

{code}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{code}




was (Author: suchithjn22):

{code:java}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{code}


> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Issue Comment Deleted] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22553:

Comment: was deleted

(was: 
{panel:title=Removed_FROM_from_nonReserved_list.patch}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{panel}
)

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307466#comment-16307466
 ] 

Suchith J N commented on SPARK-22553:
-


{code:java}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{code}


> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307464#comment-16307464
 ] 

Suchith J N commented on SPARK-22553:
-


{panel:title=Removed_FROM_from_nonReserved_list.patch}
--- 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(date 1514565609000)
+++ 
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
(revision )
@@ -746,7 +746,7 @@
 | NULL | ORDER | OUTER | TABLE | TRUE | WITH | RLIKE
 | AND | CASE | CAST | DISTINCT | DIV | ELSE | END | FUNCTION | INTERVAL | 
MACRO | OR | STRATIFY | THEN
 | UNBOUNDED | WHEN
-| DATABASE | SELECT | FROM | WHERE | HAVING | TO | TABLE | WITH | NOT
+| DATABASE | SELECT | WHERE | HAVING | TO | TABLE | WITH | NOT
 | DIRECTORY
 | BOTH | LEADING | TRAILING
 ;
{panel}


> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307462#comment-16307462
 ] 

Suchith J N commented on SPARK-22553:
-

[^file:///home/suchithjn/OpenSource/Removed_FROM_from_nonReserved_list.patch]


> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Issue Comment Deleted] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Suchith J N updated SPARK-22553:

Comment: was deleted

(was: 
[^file:///home/suchithjn/OpenSource/Removed_FROM_from_nonReserved_list.patch]
)

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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[jira] [Commented] (SPARK-22553) Drop FROM in nonReserved

2018-01-01 Thread Suchith J N (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-22553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307458#comment-16307458
 ] 

Suchith J N commented on SPARK-22553:
-

Shall I work on this issue? 

> Drop FROM in nonReserved
> 
>
> Key: SPARK-22553
> URL: https://issues.apache.org/jira/browse/SPARK-22553
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.2.0
>Reporter: Takeshi Yamamuro
>Priority: Trivial
>
> A simple query below throws a misleading error because nonReserved has 
> `SELECT` in SqlBase.q4:
> {code}
> scala> Seq((1, 2)).toDF("a", "b").createTempView("t")
> scala> sql("select a, count(1), from t group by 1").show
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input 
> columns: []; line 1 pos 7;
> 'Aggregate [unresolvedordinal(1)], ['a, count(1) AS count(1)#13L, 'from AS 
> t#11]
> +- OneRowRelation$
>   at 
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:88)
>   at 
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:85)
>   at 
> org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:289)
> {code}
> I know nonReserved currently has `SELECT` because of the historical reason 
> (https://github.com/apache/spark/pull/18079#discussion_r118842186). But, 
> since IMHO this is a kind of common mistakes (This message annoyed me a few 
> days ago in large SQL queries...), it might be worth dropping it in the 
> reserved.
> FYI: In postgresql throws an explicit error in this case:
> {code}
> postgres=# select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from" at character 21
> STATEMENT:  select a, count(1), from test group by b;
> ERROR:  syntax error at or near "from"
> LINE 1: select a, count(1), from test group by b;
> {code}



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