Module lancedb 

LanceDB implementation of VectorStore.

Structs

LanceStore

LanceDB-based vector store.

Constants

ANN_INDEX_METRIC 🔒

Product default search metric (gte-small). Train IVF-PQ with this so ANN is valid.

CHUNKS_TABLE 🔒

FILES_TABLE 🔒

MIN_ANN_ROWS 🔒

Lance IVF training uses a default sample rate of 256. Below this, stay on exact scan.

Functions

batch_to_chunks 🔒

batch_to_file_records 🔒

batch_to_search_results 🔒

build_vector_array 🔒

calculate_dir_size 🔒

Calculate the total size of a directory recursively.

combine_predicates 🔒

content_type_to_string 🔒

distance_type_from_metric 🔒

Map DistanceMetric to the LanceDB distance type used at query time.

escape_like_literal 🔒

Escape % and _ so they are treated as literals in LIKE patterns.

escape_sql_literal 🔒

Escape a string for use inside a single-quoted SQL literal.

file_date_filters_to_sql 🔒

Files-table predicates for source modification time (inclusive).

filter_to_sql 🔒

Convert one SearchFilter into a chunks-table SQL predicate.

filters_to_sql 🔒

Combine SearchQuery filters into a single SQL predicate, if any.

glob_to_regex 🔒

Convert a glob (*, **, ?) into an anchored regular expression.

regex_escape_char 🔒

scope_prefix_sql 🔒

Pre-filter for directory-scoped search (exact dir, subdirectory, or suffix).

status_to_string 🔒

string_to_content_type 🔒

string_to_status 🔒

type_or_mime_sql 🔒

type: / mime: values may name a content-type alias or a MIME type.