LanceVectorDB

project_rag::vector_db::lance_client

Struct LanceVectorDB 

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pub struct LanceVectorDB { /* private fields */ }
Expand description

LanceDB vector database implementation (embedded, no server required) Includes BM25 hybrid search support using Tantivy with per-project indexes

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impl LanceVectorDB

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pub async fn new() -> Result<Self>

Create a new LanceDB instance with default path

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pub async fn with_path(db_path: &str) -> Result<Self>

Create a new LanceDB instance with custom path

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pub fn default_lancedb_path() -> String

Get default database path (public for CLI version info)

Trait Implementations§

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impl VectorDatabase for LanceVectorDB

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fn initialize<'life0, 'async_trait>( &'life0 self, dimension: usize, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Initialize the database and create collections if needed
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fn store_embeddings<'life0, 'life1, 'async_trait>( &'life0 self, embeddings: Vec<Vec<f32>>, metadata: Vec<ChunkMetadata>, contents: Vec<String>, root_path: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Store embeddings with metadata root_path: The normalized root path being indexed (for per-project BM25 isolation)
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fn search<'life0, 'life1, 'async_trait>( &'life0 self, query_vector: Vec<f32>, query_text: &'life1 str, limit: usize, min_score: f32, project: Option<String>, root_path: Option<String>, hybrid: bool, ) -> Pin<Box<dyn Future<Output = Result<Vec<SearchResult>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Search for similar vectors
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fn search_filtered<'life0, 'life1, 'async_trait>( &'life0 self, query_vector: Vec<f32>, query_text: &'life1 str, limit: usize, min_score: f32, project: Option<String>, root_path: Option<String>, hybrid: bool, file_extensions: Vec<String>, languages: Vec<String>, path_patterns: Vec<String>, ) -> Pin<Box<dyn Future<Output = Result<Vec<SearchResult>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Search with filters
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fn delete_by_file<'life0, 'life1, 'async_trait>( &'life0 self, file_path: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete embeddings for a specific file
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fn clear<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Clear all embeddings
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fn get_statistics<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<DatabaseStats>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Get statistics
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fn flush<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Flush/save changes to disk
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fn count_by_root_path<'life0, 'life1, 'async_trait>( &'life0 self, root_path: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Count embeddings for a specific root path Used to validate dirty flags - if embeddings exist, the index may be valid
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fn get_indexed_files<'life0, 'life1, 'async_trait>( &'life0 self, root_path: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<String>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get unique file paths indexed for a specific root path Returns a list of file paths that have embeddings in the database

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