You are viewing a plain text version of this content. The canonical link for it is here.
Posted to github@datafusion.apache.org by "Dandandan (via GitHub)" <gi...@apache.org> on 2024/11/04 10:57:08 UTC
[I] Implement group join [datafusion]
Dandandan opened a new issue, #13243:
URL: https://github.com/apache/datafusion/issues/13243
### Is your feature request related to a problem or challenge?
From https://www.vldb.org/pvldb/vol4/p843-moerkotte.pdf
A group join will use a single table from the hash join for executing a join followed by a group by on the same columns.
An example query from the paper introduction
```
select a,count(*)
from R1 left outer join R2 on R1.a = R2.b
where R1.c=5
group by a
```
### Describe the solution you'd like
Implement group join in execution and in the (logical) planner.
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "SubhamSinghal (via GitHub)" <gi...@apache.org>.
SubhamSinghal commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-4358687686
teke
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "Lordworms (via GitHub)" <gi...@apache.org>.
Lordworms commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-2474370239
> @Lordworms can i take this?
Sure, feel free to go.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "maruschin (via GitHub)" <gi...@apache.org>.
maruschin commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-2474351186
Is anyone working on this task? I want to take it.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "maruschin (via GitHub)" <gi...@apache.org>.
maruschin commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-2474355037
@Lordworms can i take this?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "Dandandan (via GitHub)" <gi...@apache.org>.
Dandandan commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-2454405535
@Lordworms
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org
Re: [I] Implement group join [datafusion]
Posted by "xarus01 (via GitHub)" <gi...@apache.org>.
xarus01 commented on issue #13243:
URL: https://github.com/apache/datafusion/issues/13243#issuecomment-2603819165
take
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscribe@datafusion.apache.org
For additional commands, e-mail: github-help@datafusion.apache.org