mongodb 多表数据拼接查询

			db.T_ZXJC_FSXSSJB.aggregate([
					{
							$group:{
									_id:"any",
									T_ZXJC_FSXSSJB:{
											$push: {pwxkzbh:"$pwxkzbh",WrState:"$WrState"}
									},
									maxid: { $max: '$data_time' }
							}
					},
					{
							$lookup:{
									from:"T_ZXJC_FQXSSJB",
									localField:"pwxkzbh",
									foreignField:"pwxkzbh",
									as:"T_ZXJC_FQXSSJB"
							}
					},
					{
							$project:{
									_id:0,
									allValue:{
											$setUnion:["$T_ZXJC_FSXSSJB","$T_ZXJC_FQXSSJB"]
									}
							}
					},
					{$unwind:"$allValue"},
					{
							$project:{
									_id:0,
									type:"$allValue.pwxkzbh",
									wrstate:"$allValue.WrState"
									
							}
					}
			])