新发的5.0版 HBuilderX ，unicloud-db使用联合查询的时候，会报数据库指令错误。

我是编译到小程序端，在微信开发者工具中。回退到上一版正常。报错：

unicloud-db.vue:592 Error: 数据库指令存在错误
at _construct (construct.js:4)
at new Wrapper (wrapNativeSuper.js:17)
at re._createSuperInternal (index.js:1)
at new re (index.js:1)
at index.js:2

<unicloud-db ref="udb" v-slot:default="{ count, data, loading, error, options }" collection="collectionList" page-current="options.pageCurrent" page-size="options.pageSize" getcount="true"

collectionList: [
db
.collection('cus-goods-favority')
.where('user_id == $cloudEnv_uid')
.getTemp(),
db
.collection('opendb-mall-goods')
.where('status==0')
.field('_id,name,type,arrayElemAt(goods_thumb, 0) as picture')
.getTemp()
]