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FusionParams

nodedb_sql::ddl_ast::graph_parse::fusion_params

Struct FusionParams 

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pub struct FusionParams {
    pub query_vector: Option<Vec<f32>>,
    pub vector_top_k: Option<usize>,
    pub expansion_depth: Option<usize>,
    pub edge_label: Option<String>,
    pub final_top_k: Option<usize>,
    pub rrf_k: Option<(f64, f64)>,
    pub rrf_k_triple: Option<(f64, f64, f64)>,
    pub vector_field: Option<String>,
    pub direction: Option<GraphDirection>,
    pub max_visited: Option<usize>,
    pub bm25_query: Option<String>,
    pub bm25_field: Option<String>,
}
Expand description

Typed parameter bag for every graph-vector fusion SQL surface.

All fields are optional at parse time — bounds, caps, and “absent but required” errors are enforced at the pgwire boundary.

Three-source fusion (vector + text + graph) is enabled by populating bm25_query and bm25_field together with rrf_k_triple. When only rrf_k is set (two values), behaviour is unchanged from the two-source form. When rrf_k_triple is set it takes precedence and the BM25 leg participates in the fusion.

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§query_vector: Option<Vec<f32>>§vector_top_k: Option<usize>§expansion_depth: Option<usize>§edge_label: Option<String>§final_top_k: Option<usize>§rrf_k: Option<(f64, f64)>

Two-source RRF k constants: (vector_k, graph_k). Used when no bm25_query is present (backwards-compatible two-source form).

§rrf_k_triple: Option<(f64, f64, f64)>

Three-source RRF k constants: (vector_k, text_k, graph_k). Set when RRF_K (kv, kt, kg) is parsed and three values are found.

§vector_field: Option<String>§direction: Option<GraphDirection>§max_visited: Option<usize>§bm25_query: Option<String>

BM25 query string for the text leg of three-source fusion. Parsed from BM25 'query string' ON 'field_name' in the FUSION DSL.

§bm25_field: Option<String>

Document field on which BM25 scoring is applied in three-source fusion.

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impl Clone for FusionParams

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fn clone(&self) -> FusionParams

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for FusionParams

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

Formats the value using the given formatter. Read more
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impl Default for FusionParams

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fn default() -> FusionParams

Returns the “default value” for a type. Read more
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impl PartialEq for FusionParams

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

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

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