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Spent all morning debugging a script I wrote to compare 2 CSVs of tables from 2 different dbs.
It generates a unique key for each row using the data.
For some reason couldn't match 1 in each...
After all morning of debugging and scrutinizing the data in the dbs itself... I found the root cause....
One for loops in the program skips the first entry...
undefined
not a data issue but a program bug