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My Battle with Datetimes in Prod
- tccole 10mo agoI spent 8 hours debugging datetime parsing in a PySpark migration. Every solution failed… built-in functions returned silent NULLs, UDFs took 6 hours to run, pandas UDFs still failed on 8% of rows.
- abstractspoon 10mo ago>> Date inference is genuinely hard—there’s no universal standard Umm, ISO is the universal standard