Struct ActionCreatePreparedStatementResult

pub struct ActionCreatePreparedStatementResult {
    pub prepared_statement_handle: Bytes,
    pub dataset_schema: Bytes,
    pub parameter_schema: Bytes,
}

Wrap the result of a “CreatePreparedStatement” or “CreatePreparedSubstraitPlan” action.

The resultant PreparedStatement can be closed either:

• Manually, through the “ClosePreparedStatement” action;
• Automatically, by a server timeout.

The result should be wrapped in a google.protobuf.Any message.

Fields

prepared_statement_handle: Bytes

Opaque handle for the prepared statement on the server.

dataset_schema: Bytes

If a result set generating query was provided, dataset_schema contains the schema of the result set. It should be an IPC-encapsulated Schema, as described in Schema.fbs. For some queries, the schema of the results may depend on the schema of the parameters. The server should provide its best guess as to the schema at this point. Clients must not assume that this schema, if provided, will be accurate.

parameter_schema: Bytes

If the query provided contained parameters, parameter_schema contains the schema of the expected parameters. It should be an IPC-encapsulated Schema, as described in Schema.fbs.

Trait Implementations

impl Clone for ActionCreatePreparedStatementResult

fn clone(&self) -> ActionCreatePreparedStatementResult

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ActionCreatePreparedStatementResult

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

Formats the value using the given formatter.

impl Default for ActionCreatePreparedStatementResult

fn default() -> Self

Returns the “default value” for a type.

impl Message for ActionCreatePreparedStatementResult

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for ActionCreatePreparedStatementResult

fn eq(&self, other: &ActionCreatePreparedStatementResult) -> 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 ProstMessageExt for ActionCreatePreparedStatementResult

fn type_url() -> &'static str

type_url for this Message

fn as_any(&self) -> Any

Convert this Message to Any

impl StructuralPartialEq for ActionCreatePreparedStatementResult