#OCR
1 articles
Workflow
Thai Data Migration Traps: VARCHAR, Idempotency, and OCR Vowels
Lessons from importing and migrating hundreds of thousands of Thai data rows — undersized VARCHAR columns silently truncating synthetic keys into collisions, idempotency requiring DELETE before INSERT to stop totals reaching 200%, collation treating su001 and SU001 as equal while storing both, and Thai vowels corrupted by OCR that need a normalization map before insert