Dynamo scan not finding records of time in unix.

Question

Below are the params: ``` let params = { TableName: SESSIONTABLE, ProjectionExpression: "practitioner_full_name, appointment, utc_offset, start_time, start_time_unix, attendees, practitioner_email, id, practitioner_id, no_video_link, title, practitioner_title, service_text", FilterExpression: "(start_time_unix between :currentTime and :unixTimeAfteramin)", ExpressionAttributeValues: { ":currentTime": 1660297747000, ":unixTimeAfteramin" : 1660297807000, }, }; ``` This is the value of `start_time_unix` column - `1660297800000` The value of `start_time_unix` lies well within `currentTime` and `unixTimeAfteramin` column values. Not sure what's wrong with dynamodb here. I tried the three values in python shell as well, it works good there. ``` Python 3.8.10 (default, Jun 22 2022, 20:18:18) [GCC 9.4.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> 1660297747000 < 1660297800000 < 1660297807000 True >>> ```

Accepted Answer

How much data is in your table? When you execute a `Scan` request, it will return only the first 1MB of data ([described here](https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_Scan.html)) and if none of those items match the `FilterExpression` then you will be returned an empty response.

In order to scan the entire table, you will need to implement pagination so that you can request the next 1MB worth of data. Described [here](https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Scan.html#Scan.Pagination). You can also see examples of this in out [GitHub Repo](https://github.com/aws-samples/aws-dynamodb-examples/tree/master/DynamoDB-SDK-Examples) in various languages.

The AWS CLI paginates by default, you can try run your request there which will allow you to quickly understand if that is the issue.

Dynamo scan not finding records of time in unix.

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