Trait Column 

pub trait Column {
    type Table: Table;
    type Type;

    const NAME: &'static str;
    const NULLABLE: bool;
    const PRIMARY_KEY: bool;
}

Trait for column metadata.

Implemented by column types generated from #[derive(Table)] to provide column-level information and enable type-safe queries.

Required Associated Constants

const NAME: &'static str

The SQL column name.

const NULLABLE: bool

Whether this column is nullable.

const PRIMARY_KEY: bool

Whether this column is the primary key.

Required Associated Types

type Table: Table

The table this column belongs to.

type Type

The Rust type of this column.

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