PostgreSQL GIN 索引与全文搜索(tsvector)实践

初始化与索引： ``` CREATE TABLE docs ( id bigserial PRIMARY KEY, title text NOT NULL, body text NOT NULL ); CREATE INDEX idx_docs_search ON docs USING GIN (to_tsvector('english', title || ' ' || body)); ``` 查询（标准与简单词法）： ``` SET default_text_search_config = 'english'; SELECT id, title FROM docs WHERE to_tsvector(title || ' ' || body) @@ to_tsquery('cloud & native'); SELECT id, title FROM docs WHERE to_tsvector(title || ' ' || body) @@ plainto_tsquery('cloud native'); ```