云函数代码主要是更新数据库，本地测试正常，数据库更新正常

for (const index in res.result) { record = res.result[index] const ress = await db.collection('xxxx').where({ 'index': record.index }).update({ data: record }) }

云端测试就报错，实在搞不清哪里的问题：

{“errorCode”:1,“errorMessage”:“user code exception caught”,“stackTrace”:"errCode: -501001 resource system error | errMsg: envname field not exsit in url; "}

Error: errCode: -501001 resource system error | errMsg: envname field not exsit in url;

at new CloudSDKError (/var/user/node_modules/wx-server-sdk/index.js:6389:28)

at Object.returnAsCloudSDKError (/var/user/node_modules/wx-server-sdk/index.js:6441:16)

at Object.checkError (/var/user/node_modules/wx-server-sdk/index.js:1672:23)

at Query.<anonymous> (/var/user/node_modules/wx-server-sdk/index.js:1773:41)

at step (/var/user/node_modules/tslib/tslib.js:136:27)

at Object.next (/var/user/node_modules/tslib/tslib.js:117:57)

at fulfilled (/var/user/node_modules/tslib/tslib.js:107:62)

at <anonymous>

at process._tickCallback (internal/process/next_tick.js:188:7)