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Implement group join #13243
Description
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
Activity
Dandandan commentedon Nov 4, 2024
@Lordworms
maruschin commentedon Nov 13, 2024
Is anyone working on this task? I want to take it.
maruschin commentedon Nov 13, 2024
@Lordworms can i take this?
Lordworms commentedon Nov 13, 2024
Sure, feel free to go.
xarus01 commentedon Jan 21, 2025
take
SubhamSinghal commentedon May 1, 2026
take