foo：{$ gt：“ A”，$ lt：“ Z”};如何在scala驱动程序中编写此代码？

Question

collection.find({foo: { $gt: "A", $lt: "Z"}});

如何在Filters的MongoDB Scala Driver DSL中编写此代码？

我知道我会写

and(gt("foo", "A"), lt("foo", "Z"))

但这等同于

collection.find({$and([{foo: {$gt: "A"}}, {foo: {$lt: "Z"}}])});

对我来说似乎不太优雅。

Answer 1

驱动程序将根据您的情况合并filter子句值

select gameid, playerid, 
       max(count) filter (where event_desc = 'Shot') as shot,
       max(count) filter (where event_desc = 'Miss') as miss,
       . . .
from table_name
group by gameid, playerid;