node.js - DynamoDB: Store array of IDs and do a batchGet for each ID -


in dynamodb, have groups table , users table. 1 or many users can belong group.

using dynamodb, possible perform 1 query single group id, , of users in group user ids in group record?

if not, efficient way this?

no, cannot joins in nosql databases. way can retrieve group. read userids. , use either batchget or query/scan(if primary index) using "in" operator


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