问题 I'm not having much luck with this query, it returns 0 items const { Items } = await this.dynamoDb.query({ TableName: 'exampleTableName', IndexName: 'createdDateTime-index', KeyConditionExpression: '#createdDateTime BETWEEN :fromDateTime AND :toDateTime AND #status = :status', ExpressionAttributeNames: { '#status': 'status', '#createdDateTime': 'createdDateTime', }, ExpressionAttributeValues: { ':fromDateTime': '2017-02-20T01:58:49.710Z', ':toDateTime': new Date().toISOString(), ':status':