API documentation for indexes module.
Classes
BaseIndex
BaseIndex(name: str = 'langchainvectorindex', index_type: str = 'base', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None)BaseIndex(name: str = 'langchainvectorindex', index_type: str = 'base', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
DistanceStrategy
DistanceStrategy(value)Enumerator of the Distance strategies.
ExactNearestNeighbor
ExactNearestNeighbor(name: str = 'langchainvectorindex', index_type: str = 'exactnearestneighbor', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None)ExactNearestNeighbor(name: str = 'langchainvectorindex', index_type: str = 'exactnearestneighbor', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
HNSWIndex
HNSWIndex(name: str = 'langchainvectorindex', index_type: str = 'hnsw', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None, m: int = 16, ef_construction: int = 64)HNSWIndex(name: str = 'langchainvectorindex', index_type: str = 'hnsw', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
HNSWQueryOptions
HNSWQueryOptions(ef_search: int = 40)HNSWQueryOptions(ef_search: int = 40)
IVFFlatIndex
IVFFlatIndex(name: str = 'langchainvectorindex', index_type: str = 'ivfflat', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None, lists: int = 1)IVFFlatIndex(name: str = 'langchainvectorindex', index_type: str = 'ivfflat', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
IVFFlatQueryOptions
IVFFlatQueryOptions(probes: int = 1)IVFFlatQueryOptions(probes: int = 1)
IVFIndex
IVFIndex(name: str = 'langchainvectorindex', index_type: str = 'ivf', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None, lists: int = 100)IVFIndex(name: str = 'langchainvectorindex', index_type: str = 'ivf', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
IVFQueryOptions
IVFQueryOptions(probes: int = 1)IVFQueryOptions(probes: int = 1)
QueryOptions
QueryOptions()QueryOptions()
ScaNNIndex
ScaNNIndex(name: str = 'langchainvectorindex', index_type: str = 'ScaNN', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy = <factory>, partial_indexes: Optional[List[str]] = None, num_leaves: int = 5)ScaNNIndex(name: str = 'langchainvectorindex', index_type: str = 'ScaNN', distance_strategy: langchain_google_alloydb_pg.indexes.DistanceStrategy =
StrategyMixin
StrategyMixin(
operator: str, search_function: str, index_function: str, scann_index_function: str
)StrategyMixin(operator: str, search_function: str, index_function: str, scann_index_function: str)