feat: add SaferMigrations utility for safer column type changes #10891
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feat: add SaferMigrations utility for safer column type changes Add SaferMigrations utility to backup and restore data during column type changes. This utility ensures data integrity by backing up specified columns before the migration and restoring them afterward. The utility supports multiple tables and primary key configurations. Also added tests to validate the backup and restore functionality, including: - Basic migration where the column type is modified. - Complex migration where the column is dropped and a new column with a different type is added. Closes: typeorm#3352
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Description of change
Add SaferMigrations utility to backup and restore data during column type changes. This utility ensures data integrity by backing up specified columns before the migration and restoring them afterward. The utility supports multiple tables and primary key configurations.
Also added tests to validate the backup and restore functionality, including:
Closes: #3357
Pull-Request Checklist
masterbranchnpm run formatto apply prettier formattingnpm run testpasses with this changeFixes #0000