Struct datafusion_flight_sql_server::state::QueryHandle

pub struct QueryHandle { /* private fields */ }

Represents a query handle for use in prepared statements. All state required to run the prepared statement is passed back and forth to the client, so any service instance can run it

Implementations

impl QueryHandle

pub fn new(query: String) -> Self

pub fn query(&self) -> &str

pub fn try_decode(handle: Bytes) -> Result<Self>

pub fn encode(self) -> Bytes

Trait Implementations

impl Clone for QueryHandle

fn clone(&self) -> QueryHandle

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QueryHandle

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

Formats the value using the given formatter.

impl Display for QueryHandle

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

Formats the value using the given formatter.

impl From<QueryHandle> for Bytes

Encode a QueryHandle as Bytes

fn from(value: QueryHandle) -> Self

Converts to this type from the input type.

impl PartialEq for QueryHandle

fn eq(&self, other: &QueryHandle) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for QueryHandle