DynamoDB - Global Secondary Index on set items

Question

I have a dynamo table with the following attributes :

• id (Number - primary key )
• title (String)
• created_at (Number - long)
• tags (St

Answer 1

You will need to create a separate table for this query. If you are interested in fetching all items based on a tag then I suggest keeping a table with a primary key:
hash: tag
range: id

This way you can use a very simple Query to fetch all items by tag.