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The optimizer does not work work on pure relational algebra. Or works on something very similar to SQL in the case of PostgreSQL.
by jeltz 3y ago
The optimizer does not work work on pure relational algebra. Or works on something very similar to SQL in the case of PostgreSQL.
- vkazanov 3y agoThe operators in PostgreSQL used to represent something that feels a lot closer to rel algebra than SQL. Admittedly, I haven't looked at pgsql code for 10+ years so this could have changed.