Breaking DynamoDB Vector Search's TopK=100 Limit with Partition Key Sharding

🎯 Who This Is For You want to store and search vector data in DynamoDB You're frustrated that a single query returns at most 100 results, which leaves no room for aggregation or reranking 🆕 DynamoDB Now Supports Vector Data In August 2026, DynamoDB added support for vector data. This post doesn't cover the basics of the feature itself — see the...