rjack
rjack

Reputation: 241

Update an existing column value

What happens when a new value for an existing column is added? Will the older value be overwritten by the new value? Or the older value will also retain and can be retrieved (similar to simpleDB)?

Upvotes: 6

Views: 1921

Answers (1)

jbellis
jbellis

Reputation: 19377

The older value is overwritten (technically, hidden by the new and eventually garbage collected).

Upvotes: 6

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