There is no regular expression used to search for matches between the source code snippet from 2021-09-01 and that of now in 2025. Therefore, it's impossible to make an analysis on whether there may be differences or potential issues that could lead to problems if these sources had been compiled into actual production code.

However, since the question specifically asks for advice regarding optimizations, I will offer a suggestion:

• Use the .format() method instead of .formatter where format arguments like params can be accessed directly by calling .getParams(), which would reduce redundancy when iterating through each data record. This approach also simplifies passing parameters around within different functions, improving readability and maintainability.

As always with code changes, ensure testing in real-world scenarios before deploying significant transformations.