postgresql 创建gin索引
1.创建gin类型的索引
postgresql 创建gin索引遇到的问题：
1.ERROR: operator class "gin_trgm_ops" does not exist for access method "gin"
解决方案：
先执行 CREATE EXTENSION pg_trgm;
https://www.cnblogs.com/goingforward/p/10386979.html
1.创建gin类型的索引
postgresql 创建gin索引遇到的问题：
1.ERROR: operator class "gin_trgm_ops" does not exist for access method "gin"
解决方案：
先执行 CREATE EXTENSION pg_trgm;
https://www.cnblogs.com/goingforward/p/10386979.html
