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Except for few cases, it doesn't. This thread above on MySQL and online DDL is ncie. https://news.ycombinator.com/item?id=30581314 https://news.ycombinator.com/
by shayonj 5y ago
Except for few cases, it doesn't. This thread above on MySQL and online DDL is ncie. https://news.ycombinator.com/item?id=30581314 https://news.ycombinator.com/item?id=30581314
pg-osc doc says that since the alter statements can vary in nature, it supports if a rename is being done, so the data is preserved and synced in the order its expected.