FirstFT: the day's biggest stories
It may seem I'm giving this aspect of the program short-shrift, but so did Lotus. In their own manual for Release 2.2, macros have 300 pages devoted to them. Database functionality has 50, and the first 20 of those are instructions for typing in dummy data. Sorting, querying, finding, and extracting, the meat and potatoes of database-ing, warrant a mere 20 pages total.
,推荐阅读PDF资料获取更多信息
人 民 网 版 权 所 有 ,未 经 书 面 授 权 禁 止 使 用,更多细节参见新收录的资料
Community Guidelines,推荐阅读新收录的资料获取更多信息
to_tsvector expression, which avoids some query-time overhead and helps the Postgres planner collect better statistics: