我試圖讓所有行都超過某個時(shí)間戳。我也嘗試在條件中使用“GE”、“LE”、“GT”，但出現(xiàn)語法錯誤。我收到以下 DynamoDB 錯誤：Internal Server Error [ValidationException: Query key condition not supported    status code: 400,我有下表Table name  GroupsLambda3Primary partition key   id (String)Primary sort key    -Point-in-time recovery  DISABLEDEnableEncryption Type DEFAULTManage EncryptionKMS Master Key ARN  Not ApplicableTime to live attribute  DISABLEDManage TTL然后我創(chuàng)建了一個二級索引Name: unix_time-indexStatus: ActiveType: GSIPartition Key: unix_time (Number)Sort Key: unix_time-index最后我的 Golang 代碼是：    var cond string    cond = "unix_time <= :v_unix_time"    var projection string    projection = "id, num_users, salesforce_campaign, unix_time"    input := &dynamodb.QueryInput{        TableName:              aws.String(table),        IndexName:              aws.String("unix_time-index"),        KeyConditionExpression: &cond,        ProjectionExpression:   &projection,        ExpressionAttributeValues: map[string]*dynamodb.AttributeValue{            ":v_unix_time": {                N: aws.String("1558130473454419"),            },        },當(dāng)我這樣做時(shí)，代碼有效cond = "unix_time = :v_unix_time"，僅等于。我希望所有行都具有較小的 unix_timestamp。