OPIK-3747: [BE] Fix CSV BOM character causing Playground variable not recognized (#4766)
frostbyte_neo
发布于
2026-01-15 14:51:13 +00:00
- Add BOMInputStream wrapper to strip UTF-8 BOM (0xEF 0xBB 0xBF) from CSV uploads
- BOM in first column header was causing variable names to be prefixed with invisible character
- Variables like 'Standard Question' were stored as '\uFEFFStandard Question' and not recognized
- Added unit tests to reproduce and verify BOM stripping behavior
- Added integration test for end-to-end CSV upload with BOM handling
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