FunctionType

Specifies the type of a collection function.

pub enum FunctionType {
    Unknown,
    Bm25,
    TextEmbedding,
    Rerank,
}

VARIANTS:

• Unknown

  Unspecified or unrecognized function type. This is the default.

• Bm25

  BM25 ranking function that turns an input text field into a sparse vector output field.

• TextEmbedding

  Text-embedding function that turns an input text field into a dense vector output field.

• Rerank

  Reranking function that applies a configured reranking strategy to a candidate set.

Example

let function = Function::new()
    .name("bm25_title")
    .function_type(FunctionType::Bm25);