Add GIN indexes with gin_trgm_ops for text fields used in fuzzy search:
- author, title, series, genre, language fields
These indexes significantly improve performance of word_similarity()
queries used in the unified search implementation. pg_trgm extension
must already be enabled for these indexes to function.
Performance impact: O(n) sequential scans become O(log n) index scans
for fuzzy text search operations.
john-okeefe
7b49ab253f