Struct QueryResult 

pub struct QueryResult { /* private fields */ }

Available on crate feature pg only.

The result of a Connection::query operation.

Implementations

impl QueryResult

pub fn columns(&self) -> &[Column]

The columns in the query result.

pub async fn next(&mut self) -> Option<Row>

Gets the next row in the result set.

If this is None, there are no more rows available. You must await QueryResult::result() to determine if all rows were read successfully.

pub async fn result(self) -> Result<(), Error>

Whether the query completed successfully or with an error.

pub async fn collect(self) -> Result<Vec<Row>, Error>

Collect all rows in the result set.

This is provided for when the result set is small enough to fit in memory and you do not require streaming behaviour.

pub fn rows(&mut self) -> &mut StreamReader<Vec<DbValue>>

An asynchronous reader for the rows of the query result. Call .next().await to iterate over the rows. When this returns None, you have read all available rows. At this point you must check QueryResult::result() to determine if the read completed successfully.

This provides each row as a plain vector of database values. QueryResult::next() provides a more ergonomic wrapper.

To collect all rows into a vector, see QueryResult::collect.

pub fn into_inner( self, ) -> (Vec<Column>, StreamReader<Vec<DbValue>>, FutureReader<Result<(), PgError>>)

Extracts the underlying Wasm Component Model results of the query.