Ravi Sir's Cards › AWS
Collide or isolate?
This comparison card contrasts Collide or isolate. Global email PK: Email as table PK collides across tenants. Tenant email GSI is described as GSI PK=TENANT# SK=EMAIL#.
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What this card says
Collide or isolate?
Global email PK
Email as table PK collides across tenants.
Tenant email GSI
GSI PK=TENANT# SK=EMAIL#.
Key points
PK=email.
Per-tenant unique email.
Example
a@x.com in two workspaces.
Use when
Avoid.
Prefer.