[列独立](%E5%88%97%E7%8B%AC%E7%AB%8B.md) [like](like.md) [or](or.md) [复合索引](%E5%A4%8D%E5%90%88%E7%B4%A2%E5%BC%95.md) [智能优化](%E6%99%BA%E8%83%BD%E4%BC%98%E5%8C%96.md) [group by](groupby.md)