Module checks 

Structs

MismatchOutcome

RowError

Functions

apply_schema_mismatch

build_error_state

build_row_masks

cast_mismatch_errors

Detect cast mismatches by comparing raw (string) values to typed values. If a raw value exists but the typed value is null, we treat it as a cast error.

not_null_errors

rejected_error_columns

unique_errors