Types related to describing schema, and interactions between tables.
Most traits in this module are derived or generated by
Represents an alias within diesel’s query builder
Represents an aliased field (column) within diesel’s query builder
A table appears in the from clause two or more times.
A table never appears in the from clause.
A table appears in the from clause exactly one time.
Types created by the
alias!macro that serve to distinguish between aliases implement this trait.
Determines how many times
A column on a database table. Types which implement this trait should have been generated by the
Indicates that two tables can be joined without an explicit
Add two peano numbers together.
Represents a type which can appear in the
FROMclause. Apps should not need to concern themselves with this trait.
A SQL database table. Types which implement this trait should have been generated by the
Allows Diesel to implement some internal traits for two tables that are distinct.