Dict.OneToOne

Joinable implementation of SQL one-to-one relation

from : Dict comparable a -> (a -> result) -> Dict comparable result

Equivalent to SQL FROM

Dict comparable a

-> Dict comparable (a -> result)

-> Dict comparable result

Equivalent to SQL INNER JOIN

Dict comparable a

-> Dict comparable (Maybe a -> result)

-> Dict comparable result

Equivalent to SQL LEFT OUTER JOIN

select : a -> a

Used for clarity only and match SQL queries

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