Show HN: Napkinbook – an infinite computational whiteboard/dashboardnapkinbook.com5 points·by tccole·vor 8 Tagen·1 comments
tccole·vor 7 Monaten·discussI 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.