The length of substring can't be longer than '1962' which is the length of the source string.

The length of substring can't be longer than '1962' which is the length of the source string.
Hi @Anonymous,
Like the error mentions. The substring function expects the following format
substring('<text>', <startIndex>, <length>)
The last part, the length cannot be longer than the actual length of the source string. That is what the error means.
If you don't know or want to use a length calculation at all I would suggest to use a slice function instead. That function does not require a length.
slice('<text>', <startIndex>, <endIndex>?)