The current version of the manual has only one section per function type, e.g. "string functions":
https://www.jooq.org/doc/latest/manual/sql-building/column-expressions/string-functions/

It would be good to have subsections for each type, such that each function can be documented individually, with examples. This is particularly useful for aggregate functions and window functions, where each function has a few specialties worth mentioning.

The relevant sections include:

• General functions
• Numeric functions
• Bitwise functions
• String functions
• Date and time functions
• System functions
• Aggregate functions (see also: #10079)

Additional sections will be implemented through: #10619