Also, if the data isn't deleted couldn't this lead to database bloat? | Hacker News

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pcthrowaway 11 months ago | parent | context | favorite | on: Pgroll: zero-downtime, reversible schema migration...

Also, if the data isn't deleted couldn't this lead to database bloat?

surjection 11 months ago [–]

The bloat incurred by the extra column is certainly present while the migration is in progress (ie after it's been started with `pgroll start` but before running `pgroll complete`).

Once the migration is completed any extra columns are dropped.

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