Struct tokio_postgres::binary_copy::BinaryCopyInWriter

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pub struct BinaryCopyInWriter { /* private fields */ }
Expand description

A type which serializes rows into the PostgreSQL binary copy format.

The copy must be explicitly completed via the finish method. If it is not, the copy will be aborted.

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impl BinaryCopyInWriter

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pub fn new(sink: CopyInSink<Bytes>, types: &[Type]) -> BinaryCopyInWriter

Creates a new writer which will write rows of the provided types to the provided sink.

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pub async fn write( self: Pin<&mut Self>, values: &[&(dyn ToSql + Sync)], ) -> Result<(), Error>

Writes a single row.

§Panics

Panics if the number of values provided does not match the number expected.

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pub async fn write_raw<P, I>( self: Pin<&mut Self>, values: I, ) -> Result<(), Error>
where P: BorrowToSql, I: IntoIterator<Item = P>, I::IntoIter: ExactSizeIterator,

A maximally-flexible version of write.

§Panics

Panics if the number of values provided does not match the number expected.

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pub async fn finish(self: Pin<&mut Self>) -> Result<u64, Error>

Completes the copy, returning the number of rows added.

This method must be used to complete the copy process. If it is not, the copy will be aborted.

Trait Implementations§

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impl<'__pin> Unpin for BinaryCopyInWriter
where __Origin<'__pin>: Unpin,

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