search

substrait-io / substrait

A cross platform way to express data transformation, relational algebra, standardized record expression and plans.
https://substrait.io
Apache License 2.0
1.11k stars 147 forks source link

feat: implement delimiter join #626

Open EpsilonPrime opened 3 months ago

EpsilonPrime commented 3 months ago

This defines the physical delimiter join relation. It utilizes duplicate elimination to reduce the size of one side and then performs multiple scans on the other side to reduce the work of the actual join.