Struct DuckdbConnectionManager 

pub struct DuckdbConnectionManager { /* private fields */ }

An r2d2::ManageConnection for duckdb::Connections.

Implementations

impl DuckdbConnectionManager

pub fn file<P: AsRef<Path>>(path: P) -> Result<Self>

Creates a new DuckdbConnectionManager from file.

pub fn file_with_flags<P: AsRef<Path>>(path: P, config: Config) -> Result<Self>

Creates a new DuckdbConnectionManager from file with flags.

pub fn memory() -> Result<Self>

Creates a new DuckdbConnectionManager from memory.

pub fn memory_with_flags(config: Config) -> Result<Self>

Creates a new DuckdbConnectionManager from memory with flags.

pub fn register_table_function<T: VTab>(&self, name: &str) -> Result<()>

Register a table function.

pub fn register_scalar_function<S: VScalar>(&self, name: &str) -> Result<()>

where S::State: Debug + Default,

Register a scalar function.

Trait Implementations

impl ManageConnection for DuckdbConnectionManager

type Connection = Connection

The connection type this manager deals with.

type Error = Error

The error type returned by Connections.

fn connect(&self) -> Result<Self::Connection, Self::Error>

Attempts to create a new connection.

fn is_valid(&self, conn: &mut Self::Connection) -> Result<(), Self::Error>

Determines if the connection is still connected to the database.

fn has_broken(&self, _: &mut Self::Connection) -> bool

Quickly determines if the connection is no longer usable.