Struct Connection 

pub struct Connection { /* private fields */ }

Connection for drivers based on Polars SQLContext

Implementations

impl Connection

pub async fn new(url: &str, context: SQLContext) -> Result<Self>

Create a new Connection

Errors

if the URL is invalid

Trait Implementations

impl Connection for Connection

fn url(&self) -> &String

fn execute<'life0, 'life1, 'async_trait>( &'life0 mut self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<u64>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn query<'life0, 'life1, 'async_trait>( &'life0 mut self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn QueryResult>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn metadata<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<Metadata>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

fn close<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

fn dialect(&self) -> Box<dyn Dialect>

fn parse_sql(&self, sql: &str) -> StatementMetadata

fn default_match_statement(&self, statement: &Statement) -> StatementMetadata

fn match_statement(&self, statement: &Statement) -> StatementMetadata

impl Debug for Connection

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.