Trait datafusion_proto::logical_plan::LogicalExtensionCodec

pub trait LogicalExtensionCodec: Debug + Send + Sync {
    // Required methods
    fn try_decode(
        &self,
        buf: &[u8],
        inputs: &[LogicalPlan],
        ctx: &SessionContext
    ) -> Result<Extension>;
    fn try_encode(&self, node: &Extension, buf: &mut Vec<u8>) -> Result<()>;
    fn try_decode_table_provider(
        &self,
        buf: &[u8],
        schema: SchemaRef,
        ctx: &SessionContext
    ) -> Result<Arc<dyn TableProvider>>;
    fn try_encode_table_provider(
        &self,
        node: Arc<dyn TableProvider>,
        buf: &mut Vec<u8>
    ) -> Result<()>;

    // Provided methods
    fn try_decode_udf(&self, name: &str, _buf: &[u8]) -> Result<Arc<ScalarUDF>> { ... }
    fn try_encode_udf(
        &self,
        _node: &ScalarUDF,
        _buf: &mut Vec<u8>
    ) -> Result<()> { ... }
}

Required Methods

fn try_decode( &self, buf: &[u8], inputs: &[LogicalPlan], ctx: &SessionContext ) -> Result<Extension>

fn try_encode(&self, node: &Extension, buf: &mut Vec<u8>) -> Result<()>

fn try_decode_table_provider( &self, buf: &[u8], schema: SchemaRef, ctx: &SessionContext ) -> Result<Arc<dyn TableProvider>>

fn try_encode_table_provider( &self, node: Arc<dyn TableProvider>, buf: &mut Vec<u8> ) -> Result<()>

Provided Methods

fn try_decode_udf(&self, name: &str, _buf: &[u8]) -> Result<Arc<ScalarUDF>>

fn try_encode_udf(&self, _node: &ScalarUDF, _buf: &mut Vec<u8>) -> Result<()>

Implementors

impl LogicalExtensionCodec for DefaultLogicalExtensionCodec