You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@drill.apache.org by Rohit <ro...@gmail.com> on 2013/11/26 10:20:19 UTC
How to contribute ?
Hey Guys,
I’ve configured Drill for Dev on my machine. However, I'm still not clear how should i start contributing to it.
I’ve gone through Jira issues. Being a newbie to this project i think it would be best to start over with fixing test cases or add new test cases or trivial bugs. This will help me in acquainting with Drill code. However, I couldn’t find any issues like this. (Jira issues - test.)
Please let me know how should i start.
Thanks,
RS.
Re: How to contribute ?
Posted by Jacques Nadeau <ja...@apache.org>.
It sounds like a number of people are missing piees to do this. Would
anybody be up for writing a quick wiki article on how to configure the
storage-engines.json file, their relationship between storage engine name
and schema name and the use of file names as tables names?
Also, Steven, could you put together a quick overview of how to run Drill
in distributed mode on a DFS cluster?
On Wed, Dec 4, 2013 at 2:00 AM, rohit sharma <ro...@gmail.com> wrote:
> Hi,
>
> @Yash - Thanks for a guiding.
>
> I've tried playing around with Drill like executing some different queries.
> How can I feed in some custom data like the one in sample-data folder ? Plz
> suggest some editor for viewing and editing sample data
> like sample-data/region.parquet.
>
>
> Regards,
> Rohit.
>
>
> On Tue, Nov 26, 2013 at 4:07 PM, Yash Sharma <yash.sharma@impetus.co.in
> >wrote:
>
> > Hi Rohit,
> > Welcome to the Crew.
> > Apart from looking into JIRA's, I would also suggest you to debug the
> > existing test classes . This will show you the flow of a drill plan in
> > execution.
> > Eg:
> >
> https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
> >
> > Here is a cool post by Tim on the lifetime of Drill Query which will be
> > helpful while debugging the flow:
> > Read:
> >
> http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
> >
> > Also you can have a look into how Drill Functions work and you can add in
> > some new Drill Functions. Drill Functions are pretty simple to understand
> > and there are lot of examples implemented.
> > This is how a sample Drill Func. looks like:
> >
> >
> https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
> >
> > I had a small post on contributing to MathFunctions which might be
> helpful:
> >
> >
> http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
> >
> > Good luck Drilling.
> > - Yash
> >
> >
> >
> > -----Original Message-----
> > From: Rohit [mailto:rohit0286@gmail.com]
> > Sent: Tuesday, November 26, 2013 2:50 PM
> > To: drill-dev@incubator.apache.org
> > Subject: How to contribute ?
> >
> > Hey Guys,
> >
> > I've configured Drill for Dev on my machine. However, I'm still not clear
> > how should i start contributing to it.
> >
> > I've gone through Jira issues. Being a newbie to this project i think it
> > would be best to start over with fixing test cases or add new test cases
> or
> > trivial bugs. This will help me in acquainting with Drill code. However,
> I
> > couldn't find any issues like this. (Jira issues - test.)
> >
> > Please let me know how should i start.
> >
> > Thanks,
> > RS.
> >
> > ________________________________
> >
> >
> >
> >
> >
> >
> > NOTE: This message may contain information that is confidential,
> > proprietary, privileged or otherwise protected by law. The message is
> > intended solely for the named addressee. If received in error, please
> > destroy and notify the sender. Any use of this email is prohibited when
> > received in error. Impetus does not represent, warrant and/or guarantee,
> > that the integrity of this communication has been maintained nor that the
> > communication is free of errors, virus, interception or interference.
> >
>
Re: How to contribute ?
Posted by rohit sharma <ro...@gmail.com>.
Hi,
@Yash - Thanks for a guiding.
I've tried playing around with Drill like executing some different queries.
How can I feed in some custom data like the one in sample-data folder ? Plz
suggest some editor for viewing and editing sample data
like sample-data/region.parquet.
Regards,
Rohit.
On Tue, Nov 26, 2013 at 4:07 PM, Yash Sharma <ya...@impetus.co.in>wrote:
> Hi Rohit,
> Welcome to the Crew.
> Apart from looking into JIRA's, I would also suggest you to debug the
> existing test classes . This will show you the flow of a drill plan in
> execution.
> Eg:
> https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
>
> Here is a cool post by Tim on the lifetime of Drill Query which will be
> helpful while debugging the flow:
> Read:
> http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
>
> Also you can have a look into how Drill Functions work and you can add in
> some new Drill Functions. Drill Functions are pretty simple to understand
> and there are lot of examples implemented.
> This is how a sample Drill Func. looks like:
>
> https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
>
> I had a small post on contributing to MathFunctions which might be helpful:
>
> http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
>
> Good luck Drilling.
> - Yash
>
>
>
> -----Original Message-----
> From: Rohit [mailto:rohit0286@gmail.com]
> Sent: Tuesday, November 26, 2013 2:50 PM
> To: drill-dev@incubator.apache.org
> Subject: How to contribute ?
>
> Hey Guys,
>
> I've configured Drill for Dev on my machine. However, I'm still not clear
> how should i start contributing to it.
>
> I've gone through Jira issues. Being a newbie to this project i think it
> would be best to start over with fixing test cases or add new test cases or
> trivial bugs. This will help me in acquainting with Drill code. However, I
> couldn't find any issues like this. (Jira issues - test.)
>
> Please let me know how should i start.
>
> Thanks,
> RS.
>
> ________________________________
>
>
>
>
>
>
> NOTE: This message may contain information that is confidential,
> proprietary, privileged or otherwise protected by law. The message is
> intended solely for the named addressee. If received in error, please
> destroy and notify the sender. Any use of this email is prohibited when
> received in error. Impetus does not represent, warrant and/or guarantee,
> that the integrity of this communication has been maintained nor that the
> communication is free of errors, virus, interception or interference.
>
Re: How to contribute ?
Posted by Julian Hyde <ju...@gmail.com>.
As for the code-generation, you might like to leverage the implementation in Optiq:
/** SQL {@code LIKE} function. */
public static boolean like(String s, String pattern) {
final String regex = Like.sqlToRegexLike(pattern, null);
return Pattern.matches(regex, s);
}
/** SQL {@code LIKE} function with escape. */
public static boolean like(String s, String pattern, String escape) {
final String regex = Like.sqlToRegexLike(pattern, escape);
return Pattern.matches(regex, s);
}
/** SQL {@code SIMILAR} function. */
public static boolean similar(String s, String pattern) {
final String regex = Like.sqlToRegexSimilar(pattern, null);
return Pattern.matches(regex, s);
}
/** SQL {@code SIMILAR} function with escape. */
public static boolean similar(String s, String pattern, String escape) {
final String regex = Like.sqlToRegexSimilar(pattern, escape);
return Pattern.matches(regex, s);
}
and see https://github.com/julianhyde/optiq/blob/master/core/src/main/java/net/hydromatic/optiq/runtime/Like.java.
This can be packaged up as a DrillFunc.
However, fixing DrillOptiq$RexToDrill.visitCall is more challenging.
Julian
On Dec 6, 2013, at 1:50 PM, Jinfeng Ni <ji...@gmail.com> wrote:
> I believe we do not have support for like predicate. You may try some
> simple comparison predicate, eg. =, >, etc.
>
>
> On Fri, Dec 6, 2013 at 1:22 PM, Norris Lee <no...@simba.com> wrote:
>
>> Hello,
>>
>> I took a stab at trying to implement the "like" function by adding to
>> org/apache/drill/common/expression/fn/BooleanFunctions.java and
>> org/apache/drill/exec/expr/fn/impl/ComparisonFunctionsNullable.java (Are
>> these the right files to add it to?). However, I hit an error with
>> DrillOptiq. The error I got was:
>>
>> 0: jdbc:drill:schema=parquet-local> select * from
>> "sample-data/region.parquet" where 'test' like 'test';
>> java.lang.AssertionError: todo: implement syntax Special(LIKE('test',
>> 'test'))
>> at
>> org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:129)
>> at
>> org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:75)
>> at org.eigenbase.rex.RexCall.accept(RexCall.java:220)
>> at org.apache.drill.optiq.DrillOptiq.toDrill(DrillOptiq.java:71)
>> at
>> org.apache.drill.optiq.DrillFilterRel.implement(DrillFilterRel.java:57)
>> at
>> org.apache.drill.optiq.DrillImplementor.go(DrillImplementor.java:99)
>> at
>> org.apache.drill.optiq.EnumerableDrillRel.implement(EnumerableDrillRel.java:108)
>> at
>> net.hydromatic.optiq.rules.java.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:69)
>> at
>> net.hydromatic.optiq.prepare.OptiqPrepareImpl$OptiqPreparingStmt.implement(OptiqPrepareImpl.java:541)
>> at
>> net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:227)
>> at
>> net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:131)
>> at
>> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare2_(OptiqPrepareImpl.java:256)
>> at
>> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare_(OptiqPrepareImpl.java:196)
>> at
>> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepareSql(OptiqPrepareImpl.java:169)
>> at
>> net.hydromatic.optiq.jdbc.OptiqStatement.parseQuery(OptiqStatement.java:402)
>> at
>> net.hydromatic.optiq.jdbc.OptiqStatement.execute(OptiqStatement.java:192)
>> at sqlline.SqlLine$Commands.execute(SqlLine.java:3825)
>> at sqlline.SqlLine$Commands.sql(SqlLine.java:3738)
>> at sqlline.SqlLine.dispatch(SqlLine.java:882)
>> at sqlline.SqlLine.begin(SqlLine.java:717)
>> at sqlline.SqlLine.mainWithInputRedirection(SqlLine.java:460)
>> at sqlline.SqlLine.main(SqlLine.java:443)
>>
>> How would I go on from there? Any help/suggestions would be appreciated.
>> (I will create a JIRA for this soon).
>>
>> Thanks,
>> Norris
>>
>> -----Original Message-----
>> From: Yash Sharma [mailto:yash.sharma@impetus.co.in]
>> Sent: November-26-13 2:37 AM
>> To: drill-dev@incubator.apache.org
>> Subject: RE: How to contribute ?
>>
>> Hi Rohit,
>> Welcome to the Crew.
>> Apart from looking into JIRA's, I would also suggest you to debug the
>> existing test classes . This will show you the flow of a drill plan in
>> execution.
>> Eg:
>> https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
>>
>> Here is a cool post by Tim on the lifetime of Drill Query which will be
>> helpful while debugging the flow:
>> Read:
>> http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
>>
>> Also you can have a look into how Drill Functions work and you can add in
>> some new Drill Functions. Drill Functions are pretty simple to understand
>> and there are lot of examples implemented.
>> This is how a sample Drill Func. looks like:
>>
>> https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
>>
>> I had a small post on contributing to MathFunctions which might be helpful:
>>
>> http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
>>
>> Good luck Drilling.
>> - Yash
>>
>>
>>
>> -----Original Message-----
>> From: Rohit [mailto:rohit0286@gmail.com]
>> Sent: Tuesday, November 26, 2013 2:50 PM
>> To: drill-dev@incubator.apache.org
>> Subject: How to contribute ?
>>
>> Hey Guys,
>>
>> I've configured Drill for Dev on my machine. However, I'm still not clear
>> how should i start contributing to it.
>>
>> I've gone through Jira issues. Being a newbie to this project i think it
>> would be best to start over with fixing test cases or add new test cases or
>> trivial bugs. This will help me in acquainting with Drill code. However, I
>> couldn't find any issues like this. (Jira issues - test.)
>>
>> Please let me know how should i start.
>>
>> Thanks,
>> RS.
>>
>> ________________________________
>>
>>
>>
>>
>>
>>
>> NOTE: This message may contain information that is confidential,
>> proprietary, privileged or otherwise protected by law. The message is
>> intended solely for the named addressee. If received in error, please
>> destroy and notify the sender. Any use of this email is prohibited when
>> received in error. Impetus does not represent, warrant and/or guarantee,
>> that the integrity of this communication has been maintained nor that the
>> communication is free of errors, virus, interception or interference.
>>
Re: How to contribute ?
Posted by Jinfeng Ni <ji...@gmail.com>.
I believe we do not have support for like predicate. You may try some
simple comparison predicate, eg. =, >, etc.
On Fri, Dec 6, 2013 at 1:22 PM, Norris Lee <no...@simba.com> wrote:
> Hello,
>
> I took a stab at trying to implement the "like" function by adding to
> org/apache/drill/common/expression/fn/BooleanFunctions.java and
> org/apache/drill/exec/expr/fn/impl/ComparisonFunctionsNullable.java (Are
> these the right files to add it to?). However, I hit an error with
> DrillOptiq. The error I got was:
>
> 0: jdbc:drill:schema=parquet-local> select * from
> "sample-data/region.parquet" where 'test' like 'test';
> java.lang.AssertionError: todo: implement syntax Special(LIKE('test',
> 'test'))
> at
> org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:129)
> at
> org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:75)
> at org.eigenbase.rex.RexCall.accept(RexCall.java:220)
> at org.apache.drill.optiq.DrillOptiq.toDrill(DrillOptiq.java:71)
> at
> org.apache.drill.optiq.DrillFilterRel.implement(DrillFilterRel.java:57)
> at
> org.apache.drill.optiq.DrillImplementor.go(DrillImplementor.java:99)
> at
> org.apache.drill.optiq.EnumerableDrillRel.implement(EnumerableDrillRel.java:108)
> at
> net.hydromatic.optiq.rules.java.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:69)
> at
> net.hydromatic.optiq.prepare.OptiqPrepareImpl$OptiqPreparingStmt.implement(OptiqPrepareImpl.java:541)
> at
> net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:227)
> at
> net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:131)
> at
> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare2_(OptiqPrepareImpl.java:256)
> at
> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare_(OptiqPrepareImpl.java:196)
> at
> net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepareSql(OptiqPrepareImpl.java:169)
> at
> net.hydromatic.optiq.jdbc.OptiqStatement.parseQuery(OptiqStatement.java:402)
> at
> net.hydromatic.optiq.jdbc.OptiqStatement.execute(OptiqStatement.java:192)
> at sqlline.SqlLine$Commands.execute(SqlLine.java:3825)
> at sqlline.SqlLine$Commands.sql(SqlLine.java:3738)
> at sqlline.SqlLine.dispatch(SqlLine.java:882)
> at sqlline.SqlLine.begin(SqlLine.java:717)
> at sqlline.SqlLine.mainWithInputRedirection(SqlLine.java:460)
> at sqlline.SqlLine.main(SqlLine.java:443)
>
> How would I go on from there? Any help/suggestions would be appreciated.
> (I will create a JIRA for this soon).
>
> Thanks,
> Norris
>
> -----Original Message-----
> From: Yash Sharma [mailto:yash.sharma@impetus.co.in]
> Sent: November-26-13 2:37 AM
> To: drill-dev@incubator.apache.org
> Subject: RE: How to contribute ?
>
> Hi Rohit,
> Welcome to the Crew.
> Apart from looking into JIRA's, I would also suggest you to debug the
> existing test classes . This will show you the flow of a drill plan in
> execution.
> Eg:
> https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
>
> Here is a cool post by Tim on the lifetime of Drill Query which will be
> helpful while debugging the flow:
> Read:
> http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
>
> Also you can have a look into how Drill Functions work and you can add in
> some new Drill Functions. Drill Functions are pretty simple to understand
> and there are lot of examples implemented.
> This is how a sample Drill Func. looks like:
>
> https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
>
> I had a small post on contributing to MathFunctions which might be helpful:
>
> http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
>
> Good luck Drilling.
> - Yash
>
>
>
> -----Original Message-----
> From: Rohit [mailto:rohit0286@gmail.com]
> Sent: Tuesday, November 26, 2013 2:50 PM
> To: drill-dev@incubator.apache.org
> Subject: How to contribute ?
>
> Hey Guys,
>
> I've configured Drill for Dev on my machine. However, I'm still not clear
> how should i start contributing to it.
>
> I've gone through Jira issues. Being a newbie to this project i think it
> would be best to start over with fixing test cases or add new test cases or
> trivial bugs. This will help me in acquainting with Drill code. However, I
> couldn't find any issues like this. (Jira issues - test.)
>
> Please let me know how should i start.
>
> Thanks,
> RS.
>
> ________________________________
>
>
>
>
>
>
> NOTE: This message may contain information that is confidential,
> proprietary, privileged or otherwise protected by law. The message is
> intended solely for the named addressee. If received in error, please
> destroy and notify the sender. Any use of this email is prohibited when
> received in error. Impetus does not represent, warrant and/or guarantee,
> that the integrity of this communication has been maintained nor that the
> communication is free of errors, virus, interception or interference.
>
RE: How to contribute ?
Posted by Norris Lee <no...@simba.com>.
Hello,
I took a stab at trying to implement the "like" function by adding to org/apache/drill/common/expression/fn/BooleanFunctions.java and org/apache/drill/exec/expr/fn/impl/ComparisonFunctionsNullable.java (Are these the right files to add it to?). However, I hit an error with DrillOptiq. The error I got was:
0: jdbc:drill:schema=parquet-local> select * from "sample-data/region.parquet" where 'test' like 'test';
java.lang.AssertionError: todo: implement syntax Special(LIKE('test', 'test'))
at org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:129)
at org.apache.drill.optiq.DrillOptiq$RexToDrill.visitCall(DrillOptiq.java:75)
at org.eigenbase.rex.RexCall.accept(RexCall.java:220)
at org.apache.drill.optiq.DrillOptiq.toDrill(DrillOptiq.java:71)
at org.apache.drill.optiq.DrillFilterRel.implement(DrillFilterRel.java:57)
at org.apache.drill.optiq.DrillImplementor.go(DrillImplementor.java:99)
at org.apache.drill.optiq.EnumerableDrillRel.implement(EnumerableDrillRel.java:108)
at net.hydromatic.optiq.rules.java.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:69)
at net.hydromatic.optiq.prepare.OptiqPrepareImpl$OptiqPreparingStmt.implement(OptiqPrepareImpl.java:541)
at net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:227)
at net.hydromatic.optiq.prepare.Prepare.prepareSql(Prepare.java:131)
at net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare2_(OptiqPrepareImpl.java:256)
at net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepare_(OptiqPrepareImpl.java:196)
at net.hydromatic.optiq.prepare.OptiqPrepareImpl.prepareSql(OptiqPrepareImpl.java:169)
at net.hydromatic.optiq.jdbc.OptiqStatement.parseQuery(OptiqStatement.java:402)
at net.hydromatic.optiq.jdbc.OptiqStatement.execute(OptiqStatement.java:192)
at sqlline.SqlLine$Commands.execute(SqlLine.java:3825)
at sqlline.SqlLine$Commands.sql(SqlLine.java:3738)
at sqlline.SqlLine.dispatch(SqlLine.java:882)
at sqlline.SqlLine.begin(SqlLine.java:717)
at sqlline.SqlLine.mainWithInputRedirection(SqlLine.java:460)
at sqlline.SqlLine.main(SqlLine.java:443)
How would I go on from there? Any help/suggestions would be appreciated. (I will create a JIRA for this soon).
Thanks,
Norris
-----Original Message-----
From: Yash Sharma [mailto:yash.sharma@impetus.co.in]
Sent: November-26-13 2:37 AM
To: drill-dev@incubator.apache.org
Subject: RE: How to contribute ?
Hi Rohit,
Welcome to the Crew.
Apart from looking into JIRA's, I would also suggest you to debug the existing test classes . This will show you the flow of a drill plan in execution.
Eg: https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
Here is a cool post by Tim on the lifetime of Drill Query which will be helpful while debugging the flow:
Read: http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
Also you can have a look into how Drill Functions work and you can add in some new Drill Functions. Drill Functions are pretty simple to understand and there are lot of examples implemented.
This is how a sample Drill Func. looks like:
https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
I had a small post on contributing to MathFunctions which might be helpful:
http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
Good luck Drilling.
- Yash
-----Original Message-----
From: Rohit [mailto:rohit0286@gmail.com]
Sent: Tuesday, November 26, 2013 2:50 PM
To: drill-dev@incubator.apache.org
Subject: How to contribute ?
Hey Guys,
I've configured Drill for Dev on my machine. However, I'm still not clear how should i start contributing to it.
I've gone through Jira issues. Being a newbie to this project i think it would be best to start over with fixing test cases or add new test cases or trivial bugs. This will help me in acquainting with Drill code. However, I couldn't find any issues like this. (Jira issues - test.)
Please let me know how should i start.
Thanks,
RS.
________________________________
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
RE: How to contribute ?
Posted by Yash Sharma <ya...@impetus.co.in>.
Hi Rohit,
Welcome to the Crew.
Apart from looking into JIRA's, I would also suggest you to debug the existing test classes . This will show you the flow of a drill plan in execution.
Eg: https://github.com/apache/incubator-drill/blob/master/exec/ref/src/test/java/org/apache/drill/exec/ref/RunSimplePlan.java
Here is a cool post by Tim on the lifetime of Drill Query which will be helpful while debugging the flow:
Read: http://tnachen.wordpress.com/2013/11/05/lifetime-of-a-query-in-drill-alpha-release/
Also you can have a look into how Drill Functions work and you can add in some new Drill Functions. Drill Functions are pretty simple to understand and there are lot of examples implemented.
This is how a sample Drill Func. looks like:
https://github.com/apache/incubator-drill/blob/103072a619741d5e228fdb181501ec2f82e111a3/sandbox/prototype/exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/ComparisonFunctions.java
I had a small post on contributing to MathFunctions which might be helpful:
http://www.confusedcoders.com/bigdata/apache-drill/how-to-contribute-to-apache-drill-implementing-drill-math-functions
Good luck Drilling.
- Yash
-----Original Message-----
From: Rohit [mailto:rohit0286@gmail.com]
Sent: Tuesday, November 26, 2013 2:50 PM
To: drill-dev@incubator.apache.org
Subject: How to contribute ?
Hey Guys,
I've configured Drill for Dev on my machine. However, I'm still not clear how should i start contributing to it.
I've gone through Jira issues. Being a newbie to this project i think it would be best to start over with fixing test cases or add new test cases or trivial bugs. This will help me in acquainting with Drill code. However, I couldn't find any issues like this. (Jira issues - test.)
Please let me know how should i start.
Thanks,
RS.
________________________________
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.