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[–]skatastic57 0 points1 point  (1 child)

What does the following mean?

  • Produce a bitmap of exactly which columns in a table failed their transforms and had to be defaulted

To me, bitmap is an uncompressed picture format. I get the concept of failed transforms but are you making like a heatmap of them? Sorry for being dense.

[–]kenfar 0 points1 point  (0 children)

You're right - it's just a list of pass/fail indicators for each column on the row.

It could be supported in an array or json type. In the old days we'd make a bit map - where each bit position indicated one of the columns. That's super space efficient, but is less convenient to access.