Available on crate feature 
postgres_backend only.Expand description
This module contains extensions that are added to core types to aid in
building expressions. These traits are not exported by default. The are also
re-exported in diesel::dsl
Traitsยง
- IntervalDsl 
- A DSL added to integers and f64to construct PostgreSQL intervals.
- OnlyDsl
- The onlymethod
- TablesampleDsl 
- The tablesamplemethod