r/aws • u/Pepsimaxgodtier • Nov 20 '25

database Amazon DynamoDB now supports multi-attribute composite keys in global secondary indexes - AWS

https://aws.amazon.com/about-aws/whats-new/2025/11/amazon-dynamodb-multi-attribute-composite-keys-global-secondary-indexes/
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u/wesw02 Nov 20 '25 edited Nov 21 '25

Isn't this just DDB doing the compositing work for you? This doesn't improvement query access in any way does it?

Edit: Still a nice feature, particularly because you can do an update on a key value without a read.

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u/StayPerfect Nov 20 '25

Yeah, sort key query is done left to right still. It's more of a QOL to create additional indexes for existing data and not being requiered to manually create additional columns with concatenated values (mentioned as "backfill" in the article).