Trait Table

pub trait Table:
    QuerySource
    + AsQuery
    + Sized {
    type PrimaryKey: SelectableExpression<Self> + ValidGrouping<()>;
    type AllColumns: SelectableExpression<Self> + ValidGrouping<()>;

    // Required methods
    fn primary_key(&self) -> Self::PrimaryKey;
    fn all_columns() -> Self::AllColumns;
}

A SQL database table. Types which implement this trait should have been generated by the table! macro.

Required Associated Types

type PrimaryKey: SelectableExpression<Self> + ValidGrouping<()>

The type returned by primary_key

type AllColumns: SelectableExpression<Self> + ValidGrouping<()>

The type returned by all_columns

Required Methods

fn primary_key(&self) -> Self::PrimaryKey

Returns the primary key of this table.

If the table has a composite primary key, this will be a tuple.

fn all_columns() -> Self::AllColumns

Returns a tuple of all columns belonging to this table.

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<S> Table for Only<S>

where S: Table + Clone + AsQuery, <S as Table>::PrimaryKey: SelectableExpression<Only<S>>, <S as Table>::AllColumns: SelectableExpression<Only<S>>, <S as QuerySource>::DefaultSelection: ValidGrouping<()> + SelectableExpression<Only<S>>,

Available on crate feature postgres_backend only.

type PrimaryKey = <S as Table>::PrimaryKey

type AllColumns = <S as Table>::AllColumns

impl<S, TSM> Table for Tablesample<S, TSM>

where S: Table + Clone + AsQuery, TSM: TablesampleMethod, <S as Table>::PrimaryKey: SelectableExpression<Tablesample<S, TSM>>, <S as Table>::AllColumns: SelectableExpression<Tablesample<S, TSM>>, <S as QuerySource>::DefaultSelection: ValidGrouping<()> + SelectableExpression<Tablesample<S, TSM>>,

Available on crate feature postgres_backend only.

type PrimaryKey = <S as Table>::PrimaryKey

type AllColumns = <S as Table>::AllColumns