Struct LanceDfFieldDecoderStrategy

pub struct LanceDfFieldDecoderStrategy { /* private fields */ }

This strategy is responsible for creating the field scheduler that handles the pushdown filtering. It is a top-level scheduler that uses column info from various leaf schedulers.

The current implementation is a bit of a hack. It assumes that the decoder strategy will only be used once. The very first time that create_field_scheduler is called, we assume we are at the root.

Field decoding strategies are supposed to be stateless but this one is not. As a result, we use a mutex to gather the state even though we aren’t technically doing any concurrency.

Implementations

impl LanceDfFieldDecoderStrategy

pub fn new(schema: Arc<Schema>) -> Self

Trait Implementations

impl Debug for LanceDfFieldDecoderStrategy

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

Formats the value using the given formatter.