d5bdb24b0f
Implements the search module providing three search modes: - Lexical (FTS5): Full-text search using SQLite FTS5 with safe query sanitization. User queries are automatically tokenized and wrapped in proper FTS5 syntax. Supports a "raw" mode for power users who want direct FTS5 query syntax (NEAR, column filters, etc.). - Semantic (vector): Embeds the search query via Ollama, then performs cosine similarity search against stored document embeddings. Results are deduplicated by doc_id since documents may have multiple chunks. - Hybrid (default): Executes both lexical and semantic searches in parallel, then fuses results using Reciprocal Rank Fusion (RRF) with k=60. This avoids the complexity of score normalization while producing high-quality merged rankings. Gracefully degrades to lexical-only when embeddings are unavailable. Additional components: - search::filters: Post-retrieval filtering by source_type, author, project, labels (AND logic), file path prefix, created_after, and updated_after. Date filters accept relative formats (7d, 2w) and ISO dates. - search::rrf: Reciprocal Rank Fusion implementation with configurable k parameter and optional explain mode that annotates each result with its component ranks and fusion score breakdown. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
15 lines
383 B
Rust
15 lines
383 B
Rust
mod filters;
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mod fts;
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mod hybrid;
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mod rrf;
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mod vector;
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pub use fts::{
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generate_fallback_snippet, get_result_snippet, search_fts, to_fts_query, FtsQueryMode,
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FtsResult,
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};
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pub use filters::{apply_filters, PathFilter, SearchFilters};
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pub use rrf::{rank_rrf, RrfResult};
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pub use vector::{search_vector, VectorResult};
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pub use hybrid::{search_hybrid, HybridResult, SearchMode};
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