Compares SDF strings of two columns and fails if differences are found. A tolerance range can be defined for comparing floating point numbers. There is no "real" SDF logic in this node. It simply does the following: First it removes all operating system specific characters and removes all white spaces that are found in a row replacing them by a single space. Then it walks through all remaining items which are now separated by single spaces and compares them. If a numeric value is encountered that includes a floating point, it will try to parse it as a double number, and if this succeeds for both sides, it will compare the numbers with each other. For the comparison we can specify a tolerance.
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