Add unaccent to trigram GIN indexes for accent-insensitive search#4
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jakebromberg merged 1 commit intomainfrom Feb 14, 2026
Merged
Add unaccent to trigram GIN indexes for accent-insensitive search#4jakebromberg merged 1 commit intomainfrom
jakebromberg merged 1 commit intomainfrom
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Queries for "Bjork" now match "Björk" at the database level. Adds an immutable f_unaccent() wrapper (required because the built-in unaccent() is STABLE) and updates all 4 trigram index expressions from lower(col) to lower(f_unaccent(col)). - schema/create_database.sql: enable unaccent extension - schema/create_functions.sql: immutable f_unaccent() wrapper - schema/create_indexes.sql: accent-insensitive index expressions - scripts/dedup_releases.py: update hardcoded post-dedup indexes - scripts/run_pipeline.py: run create_functions.sql after schema - scripts/verify_cache.py: run create_functions.sql on target DB
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Summary
f_unaccent()SQL wrapper (required because PostgreSQL's built-inunaccent()isSTABLE, notIMMUTABLE, so it can't be used in index expressions directly)lower(col)tolower(f_unaccent(col))Test plan
pytest -m postgres) -- verify schema, indexes, dedup, copy-to on Postgrespytest -m e2e) -- full pipeline runSELECT indexdef FROM pg_indexes WHERE indexname LIKE '%trgm%'showsf_unaccentSELECT f_unaccent('Björk')returnsBjorkNote: consumer queries in request-parser's
cache_service.pywill need a separate change to uselower(f_unaccent($1))in WHERE clauses to match the new index expressions.