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DynamoDB: GSI, LSI, and related design ideas

This note explains the important DynamoDB concepts in a simple and practical way. First idea: think in access patterns Before designing a DynamoDB table, ask: What questions will the application ask?

Plan Around Next Month's Closure, Not Today's

Every traffic API on the market answers the same question: what is closed right now? That question is worth answering. It is also the wrong one for most of the decisions a planner actually makes.