Efficient syntax for set operations and enabling and exposing relational algebra as simple constructs usually simplifies code (I do lot of data transforms at wo

Efficient syntax for set operations and enabling and exposing relational algebra as simple constructs usually simplifies code (I do lot of data transforms at work). It does not require fancy constructs, just starting from the fact that a large category of programs can be expressed succintly with relational algebra and then implementing the clearest and most succint code to implement it.