fix migration which adds column and index together. #3450
Merged
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Description of Changes
auto_migrate_databaseshould not take table schema as input because each step is ordered and may depend on changes made by a prior step, this approach can lead to incorrect assumptions (e.g., adding a column changes its table id).Migration steps now retrieve the current table schema when they run. This adds a small performance cost, but it simplifies the logic and code is not under hotpath.
fixes #3441
API and ABI breaking changes
NA
Expected complexity level and risk
1
Testing
Update smoketest to add failed case.