unicloud-db 中提示错误,而且where语句失效

        <unicloud-db ref="udb" v-slot:default="{data, loading, error, options}"  :options="formData"  
                     :collection="collection" :field="field"  :where="sWhere" :orderby="orderBy" @load="load" >  
</unicloud-db>  
......  
.  
.  
.  
// 数据表名  
                collection: "draw_fill_mould,draw_fill_mould_gategory",  
                // 查询字段，多个字段用 , 分割  
                field: 'video_url,pic_url,mould_name,type,desc,goods_price,appreciate,used_count,gategory,gategory_name',