Trait KnownCastSqlTypeName

pub trait KnownCastSqlTypeName<DB> {
    const SQL_TYPE_NAME: &'static str;
}

We know what to write as sql_type in the CAST(expr AS sql_type) SQL for Self

That is what is returned by Self::sql_type_name()

Required Associated Constants

const SQL_TYPE_NAME: &'static str

What to write as sql_type in the CAST(expr AS sql_type) SQL for Self

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<ST, DB> KnownCastSqlTypeName<DB> for Nullable<ST>

where ST: KnownCastSqlTypeName<DB>,

const SQL_TYPE_NAME: &'static str