You are viewing a plain text version of this content. The canonical link for it is here.
Posted to github@arrow.apache.org by "alamb (via GitHub)" <gi...@apache.org> on 2023/03/05 12:08:59 UTC
[GitHub] [arrow-datafusion] alamb opened a new issue, #5483: [EPIC] More Subquery support
alamb opened a new issue, #5483:
URL: https://github.com/apache/arrow-datafusion/issues/5483
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
DataFusion supports many types of subqueries (originally tracked via https://github.com/apache/arrow-datafusion/issues/2248). This epic tracks additional features / support
See also the original [design document](https://docs.google.com/document/d/1j5vHyva-T_5l3POnHSS0-r5TOp86sEkfSUcRLqJZaK4/edit?usp=sharing).
## Physical Plan
- [ ] https://github.com/apache/arrow-datafusion/issues/1835
- [ ] https://github.com/apache/arrow-datafusion/issues/123
- [ ] https://github.com/apache/arrow-datafusion/issues/2480
--
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@arrow.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
Re: [I] [EPIC] More Subquery support [datafusion]
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2766954716
> Where to start in understanding DataFusion’s query planning and optimization workflow.
I think starting at https://datafusion.apache.org/ and https://datafusion.apache.org/contributor-guide/architecture.html would probably be a good place to start
--
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] [EPIC] More Subquery support [datafusion]
Posted by "Y-jiji (via GitHub)" <gi...@apache.org>.
Y-jiji commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2716393700
I want to try this for GSoC. Leave an email: tyang425@gatech.edu
--
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] [EPIC] More Subquery support [datafusion]
Posted by "yashdavkhar7020 (via GitHub)" <gi...@apache.org>.
yashdavkhar7020 commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2723692752
🚀 Interested in Contributing to Correlated Subqueries in DataFusion
Hi
I am Yash Davkhar, and I am highly interested in contributing to this project on adding support for correlated subqueries in DataFusion. I have experience in SQL, database systems, and query optimization and would love to apply my skills to improve DataFusion’s SQL engine.
I have gone through the project description and the linked epic, and I would appreciate any guidance on how to get started. Could you please share any specific tasks or areas I should focus on first?
Looking forward to contributing! 🚀
Best regards,
Yash Davkhar
--
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] [EPIC] More Subquery support [datafusion]
Posted by "adriangb (via GitHub)" <gi...@apache.org>.
adriangb commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-3832227308
Dropping an example that I was surprised didn't work, I think related to this:
```sql
> CREATE TABLE t(col text) AS VALUES ('foo');
0 row(s) fetched.
Elapsed 0.005 seconds.
> SELECT EXISTS (
SELECT 1
FROM t
WHERE col = 'value'
) AS exst;
This feature is not implemented: Physical plan does not support logical expression Exists(Exists { subquery: <subquery>, negated: false })
```
--
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] [EPIC] More Subquery support [datafusion]
Posted by "SanjayUG (via GitHub)" <gi...@apache.org>.
SanjayUG commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2736113434
Hi there,
Looks interesting issue, I would love to contribute to it without any fiction.
Thank You.
--
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] [EPIC] More Subquery support [datafusion]
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2836816535
- I am trying to organize a join task force for planning joins / subqueries: https://github.com/apache/datafusion/issues/15885
--
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] [EPIC] More Subquery support [datafusion]
Posted by "PhaniKulkarni (via GitHub)" <gi...@apache.org>.
PhaniKulkarni commented on issue #5483:
URL: https://github.com/apache/datafusion/issues/5483#issuecomment-2766774770
Hi, I am interested in contributing to Apache DataFusion, specifically in implementing correlated subqueries support
I have experience in SQL Engines, Data Migration and query optimization and have gone through DataFusion’s documentation and source code. However, I would appreciate some guidance on:
1. Where to start in understanding DataFusion’s query planning and optimization workflow.
2. Any specific resources or previous discussions that would be helpful.
3. How best to break down the implementation steps before submitting a PR.
A brief discussion would be greatly appreciated.
Here is my contact and profile details:
LinkedIn: https://www.linkedin.com/in/phani-kulkarni-140674180/
Mail: kulkarniphani@gmail.com
Thanks and Regards,
Phani Kulkarni
--
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