Ravi Sir's Cards › AWS
Keys
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Keys
GSI
New partition key (and optional sort key).
LSI
Same partition key, different sort key.
Key points
Add anytime (with limits).
Must create with the table.
Example
Query users by email.
Use when
Most second access patterns.
Alternate sort on same PK.