Struct sqlx_core::postgres::PgConnection

pub struct PgConnection { /* fields omitted */ }

An asynchronous connection to a [Postgres] database.

The connection string expected by Connection::open should be a PostgreSQL connection string, as documented at https://www.postgresql.org/docs/12/libpq-connect.html#LIBPQ-CONNSTRING

Trait Implementations

impl Connection for PgConnection

fn open<T>(url: T) -> BoxFuture<'static, Result<Self>> where
    T: TryInto<Url, Error = Error>,
    Self: Sized, 

Establish a new database connection.

fn close(self) -> BoxFuture<'static, Result<()>>

Close this database connection.

fn ping(&mut self) -> BoxFuture<Result<()>>

Verifies a connection to the database is still alive.

impl Executor for PgConnection

type Database = Postgres

fn send<'e, 'q: 'e>(&'e mut self, query: &'q str) -> BoxFuture<'e, Result<()>>

Send a raw SQL command to the database.

fn execute<'e, 'q: 'e>(
    &'e mut self,
    query: &'q str,
    args: PgArguments
) -> BoxFuture<'e, Result<u64>>

Execute the query, returning the number of rows affected.

fn fetch<'e, 'q: 'e>(
    &'e mut self,
    query: &'q str,
    args: PgArguments
) -> BoxStream<'e, Result<PgRow>>

Executes the query and returns a [Stream] of [Row].

fn describe<'e, 'q: 'e>(
    &'e mut self,
    query: &'q str
) -> BoxFuture<'e, Result<Describe<Self::Database>>>

Analyze the SQL query and report the inferred bind parameter types and returned columns.

fn fetch_optional<'e, 'q: 'e>(
    &'e mut self,
    query: &'q str,
    args: <Self::Database as Database>::Arguments
) -> BoxFuture<'e, Result<Option<<Self::Database as Database>::Row>>>

Executes the query and returns up to resulting record.

fn fetch_one<'e, 'q: 'e>(
    &'e mut self,
    query: &'q str,
    args: <Self::Database as Database>::Arguments
) -> BoxFuture<'e, Result<<Self::Database as Database>::Row>>

Execute the query and return at most one resulting record.