Ravi Sir's Cards › AWS
Overwrite or append?
This comparison card contrasts Overwrite or append. Current-state store: Keep latest row only. Event-sourced log: Append facts. It also notes fold to state. It also notes audit/replay. The card pairs Current-state store with easy reads, and Event-sourced log with rebuild power.
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What this card says
Overwrite or append?
Current-state store
Keep latest row only.
Event-sourced log
Append facts; fold to state; audit/replay.
Key points
Simple profiles.
Audit-heavy domains.
Example
UpdateItem.
Use when
Easy reads.
Rebuild power.