dimgigov
ef264d7d69
feat: add unified search engine — HNSW heap-opt, segment index, boolean/phrase/ngram/facet
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New src/barabadb/search/ module with 9 components:
- priority_queue.nim: BoundedHeap for O(log n) search
- hnsw_opt.nim: heap-based searchLayer (2.4x faster, 92-99% recall@10)
- inverted.nim: segment-based index with soft-delete and compaction
- phrase.nim: positional phrase + proximity search
- boolean.nim: recursive descent parser (AND/OR/NOT/ranges/wildcards)
- ngram.nim: trigram index for O(1) fuzzy/prefix/wildcard
- stemmer.nim: Porter2 stemmers (EN/BG/DE/FR/RU)
- facet.nim: faceted search with filter pushdown
- engine.nim: UnifiedSearchEngine combining all search types
Performance (dim=128, efConstruction=200):
N=1K: 0.30ms search, 99.6% recall@10
N=10K: 1.09ms search, 92.6% recall@10
N=50K: 2.26ms search, 75.5% recall@10
Includes search benchmarks (benchmarks/search_bench.nim), updated docs
(en/bg fts.md, en/bg search.md), and crossmodal engine integration.
2026-05-30 13:42:08 +03:00
dimgigov
215df1cdf3
docs: update README and all docs with formal verification, new BaraQL features, OpenTelemetry tracing
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- Add Formal Verification section to README and architecture docs
- Document TLA+ specs for Raft, 2PC, MVCC, Replication
- Add new BaraQL features: JSON path (->, ->>), FTS @@, CREATE INDEX USING FTS,
RECOVER TO TIMESTAMP, UNION/INTERSECT/EXCEPT
- Add OpenTelemetry tracing example to README
- Update Quick Start to use nimble test/bench
- Update EN and BG documentation
2026-05-07 16:06:13 +03:00
dimgigov
e1bae0c7a0
Add comprehensive documentation with i18n support (EN/BG)
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- Add docs/ folder with English (en/) and Bulgarian (bg/) documentation
- Create index.md with language switching and links
- English docs: installation, quickstart, architecture, baraql, storage,
schema, lsm, btree, vector, graph, fts, columnar, transactions,
distributed, protocol, udf, api-binary, api-http, api-websocket
- Bulgarian docs: installation, quickstart, architecture, baraql,
schema, lsm, btree, vector, graph, fts, transactions, distributed
- Update README license to BSD 3-Clause
- Add LICENSE file with BSD 3-Clause text
2026-05-06 16:51:14 +03:00
dimgigov