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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/16 15:38:17 UTC

[GitHub] [arrow-datafusion] andygrove opened a new issue, #2248: [EPIC] Subquery support

andygrove opened a new issue, #2248:
URL: https://github.com/apache/arrow-datafusion/issues/2248

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   
   We have many issues now for subquery support, with some duplication so I thought it would be good to create one epic to track all of this work.
   
   - [ ]  https://github.com/apache/arrow-datafusion/issues/2181
   - [ ] https://github.com/apache/arrow-datafusion/issues/2238
   - [ ] https://github.com/apache/arrow-datafusion/issues/2237
   - [ ] https://github.com/apache/arrow-datafusion/issues/2219
   - [ ] https://github.com/apache/arrow-datafusion/issues/2181
   - [ ] https://github.com/apache/arrow-datafusion/issues/2247
   - [ ] https://github.com/apache/arrow-datafusion/issues/2245
   - [ ] https://github.com/apache/arrow-datafusion/issues/1835
   - [ ] https://github.com/apache/arrow-datafusion/issues/488
   - [ ] https://github.com/apache/arrow-datafusion/issues/123
   
   


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[GitHub] [arrow-datafusion] jon-chuang commented on issue #2248: [EPIC] Subquery support

Posted by GitBox <gi...@apache.org>.
jon-chuang commented on issue #2248:
URL: https://github.com/apache/arrow-datafusion/issues/2248#issuecomment-1120280963

   - [ ] https://github.com/apache/arrow-datafusion/issues/2480


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[GitHub] [arrow-datafusion] jon-chuang commented on issue #2248: [EPIC] Subquery support

Posted by GitBox <gi...@apache.org>.
jon-chuang commented on issue #2248:
URL: https://github.com/apache/arrow-datafusion/issues/2248#issuecomment-1114332289

   Some additional ideas for subquery optimizations:
   - If rest of subquery is not correlated, push up correlated filter (in particular, correlated equality filter) into a left join on the filter.
   - More here: https://www.alibabacloud.com/blog/query-optimization-technology-for-correlated-subqueries_597644


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[GitHub] [arrow-datafusion] alamb commented on issue #2248: [EPIC] Subquery support

Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #2248:
URL: https://github.com/apache/arrow-datafusion/issues/2248#issuecomment-1455073874

   I filed https://github.com/apache/arrow-datafusion/issues/5483 to track the few items that are not done yet, and am going to close this ticket as we have subquery support in DataFusion now 🎉 


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[GitHub] [arrow-datafusion] alamb closed issue #2248: [EPIC] Subquery support

Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb closed issue #2248: [EPIC] Subquery support
URL: https://github.com/apache/arrow-datafusion/issues/2248


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