Reference & Benchmarks

Complete SQL reference, GUC parameters, benchmarks, and version history for vchord_bm25 and pg_tokenizer.

Complete technical reference for vchord_bm25 and pg_tokenizer:

Complete reference for bm25vector, bm25query, tsvector, <&>, to_bm25query, bm25_page_inspect, and all 19 pg_tokenizer functions.

Session GUCs and index storage parameters across v0.1–v0.3 (bm25_catalog.) and main (bm25.).

QPS and NDCG@10 accuracy comparisons against Elasticsearch, Lucene, ParadeDB, and PostgreSQL GIN.

Changelog and schema evolution from v0.1.0 through v0.3.0 to the next-generation native tsvector architecture.

SQL Reference

Complete SQL data types, operators, casts, index access methods, and functions for vchord_bm25 and pg_tokenizer.

Complete reference of session GUC parameters and index storage options for vchord_bm25.

Benchmarks

QPS throughput and NDCG@10 retrieval accuracy benchmarks for VectorChord-BM25 against Elasticsearch, Lucene, ParadeDB, and PostgreSQL GIN.

Version changelog and SQL schema evolution of VectorChord-BM25 (vchord_bm25) from v0.1.0 to v0.3.0 and main.