Table.Unique_key
Unique keys definitions.
Unique keys represent SQL UNIQUE constraints on a table.
type 'r t
The type for unique keys.
val make : 'r Col.def list -> 'r t
make cs is a unique key with columns cs.
make cs
cs
val cols : 'r t -> 'r Col.def list
cols u are the columns of the unique key u.
cols u
u