Comment 13 for bug 1705998

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Imri Zvik (imrizvik) wrote :

Carlos, I don't want to nit pick, but the changelog is wrong -
The *only* reason pt-online-schema-change failed the ALTER, and did not end up with silent data corruption is that the column *happen* to not have a default value. If the column had default value, the tool would have ran and swap the tables, leading to data loss.