1. 範圍查詢:
類似sql: between and ... ( 30<x<40 )
舉例:
filter := bson.D{{"cid", cid}, {"height", bson.M{"$gte": startheight, "$lt": endheight}}}
2.包含查詢:
類似sql: where id in(.........)
舉例:
countFilter := bson.M{"cid": bson.M{"$in": queryIds}}
3.或者關系查詢:
類似sql: where c1="X" or c2="X"