英文:
How to use "BETWEEN" in aws-sdk-go Dynamodb QueryInput?
问题
我正在使用aws-sdk-go来操作DynamoDB。我需要从我的数据库中收集一些项目。过滤条件是deviceid: xyz，time >= 10和time <= 20。
time是我的数据库的排序键，deviceid是主键。我理解我需要使用BETWEEN来实现我的目标。我的实现不成功，如下所示：
var queryInput = &dynamodb.QueryInput{TableName: aws.String(dbName),KeyConditions: map[string]*dynamodb.Condition{"deviceid": {ComparisonOperator: aws.String("EQ"),AttributeValueList: []*dynamodb.AttributeValue{{S: aws.String("xyz"),},},},"time": {ComparisonOperator: aws.String("BETWEEN"),AttributeValueList: []*dynamodb.AttributeValue{{N: aws.String("10"),},{N: aws.String("20"),},},},},}
这里有哪些错误？
英文:
I am using aws-sdk-go for dynamodb. I need to collect some items from my DB. The filtering conditions are deviceid: xyz, time >= 10 and time <= 20.
time is the sort key for my db and deviceid is the primary key. I understand I have to use BETWEEN for achieving my goal. My Implementations are not successful and as follows:
var queryInput = &dynamodb.QueryInput{TableName: aws.String(dbName),KeyConditions: map[string]*dynamodb.Condition{"deviceid": {ComparisonOperator: aws.String("EQ"),AttributeValueList: []*dynamodb.AttributeValue{{S: aws.String("xyz"),},},},"time": {ComparisonOperator: aws.String("BETWEEN"),AttributeValueList: []*dynamodb.AttributeValue{{N: aws.String("10"),N: aws.String("20"),},},},},}
What are the mistakes I made here?
答案1
得分: 5
"time"的值应按照以下方式给出：
"time": {ComparisonOperator: aws.String("BETWEEN"),AttributeValueList: []*dynamodb.AttributeValue{{N: aws.String("10"),},{N: aws.String("20"),},},},
英文:
The time value should be given as mentioned below:-
"time": {ComparisonOperator: aws.String("BETWEEN"),AttributeValueList: []*dynamodb.AttributeValue{{N: aws.String("10"),},{N: aws.String("20"),},},},
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