Struct duckdb::Appender

pub struct Appender<'conn> { /* fields omitted */ }

Appender for fast import data

Implementations

impl Appender<'_>

pub fn append_rows<P, I>(&mut self, rows: I) -> Result<()> where
    I: IntoIterator<Item = P>,
    P: AppenderParams, 

Append multiple rows from Iterator

Example

fn insert_rows(conn: &Connection) -> Result<()> {
    let mut app = conn.appender("foo")?;
    app.append_rows([[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]])?;
    Ok(())
}

Failure

Will return Err if append column count not the same with the table schema

pub fn append_row<P: AppenderParams>(&mut self, params: P) -> Result<()>

Append one row

Example

fn insert_row(conn: &Connection) -> Result<()> {
    let mut app = conn.appender("foo")?;
    app.append_row([1, 2])?;
    Ok(())
}

Failure

Will return Err if append column count not the same with the table schema

pub fn flush(&mut self)

Flush data into DB

Trait Implementations

impl Debug for Appender<'_>

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

Formats the value using the given formatter.

impl Drop for Appender<'_>

fn drop(&mut self)

Executes the destructor for this type.