v.22.8Improvement
Add Default Argument to File Function for Non-Existent Files
Add the second argument to the ordinary function file(path[, default]), which function returns in the case when a file does not exists. #39218 (Nikolay Degterinsky).Why it matters
This feature allows users to handle cases where the specified file might be missing by providing a default return value, improving query robustness and avoiding errors related to missing files.How to use it
Use thefile function with two arguments: the first is the file path, and the second is the default value to return if the file does not exist. For example: file('path/to/file', 'default_value').