Struct pg_worm::query::Select

pub struct Select<'a, T = Vec<Row>> { /* private fields */ }

A struct which holds the information needed to build a SELECT query.

Implementations

impl<'a, T> Select<'a, T>

pub fn where_(self, where_: Where<'a>) -> Select<'a, T>

Add a WHERE clause to your query.

If used multiple time, the conditions are joined using AND.

pub fn limit(self, limit: u64) -> Select<'a, T>

Add a LIMIT to your query.

pub fn offset(self, offset: u64) -> Select<'a, T>

Add an OFFSET to your query.

Trait Implementations

impl<'a, T: 'a> IntoFuture for Select<'a, T>where Select<'a, T>: ToQuery<'a, T>, Query<'a, T>: Executable<Output = T>,

type IntoFuture = Pin<Box<dyn Future<Output = <Select<'a, T> as IntoFuture>::Output> + 'a, Global>>

Which kind of future are we turning this into?

type Output = Result<T, Error>

The output that the future will produce on completion.

fn into_future(self) -> Self::IntoFuture

Creates a future from a value.

impl<'a, T> PushChunk<'a> for Select<'a, T>

fn push_to_buffer<B>(&mut self, buffer: &mut Query<'a, B>)

Pushes the containing string and the params to the provided buffer.

impl<'a, T> ToQuery<'a, T> for Select<'a, T>

fn to_query(&mut self) -> Query<'a, T>

A default implementation for building a query which can then be executed.