pub fn parse_search_using_fusion(sql: &str) -> Option<(String, FusionParams)>Expand description
Parse SEARCH <collection> USING FUSION(...) into its collection name
and a typed FusionParams. Returns None when the SQL does not
match the expected shape.
Body extraction uses the same quote- and bracket-aware tokenizer as
the GRAPH RAG FUSION path, so a keyword-shaped string literal (e.g.
a label value 'TOP') cannot shadow a real parameter keyword.