The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/14/indexes-expressional.html
Description:
Regarding the paragraph (_emphasis_ added):
> Index expressions are relatively expensive to maintain, because the
derived expression(s) must be computed for _each row upon insertion and
whenever it is updated_.
Does the "it" in the above refer to the entire row or just the columns used
in the expression? Does updating any column of a row trigger an update to
all indexes with expressions?
Thanks in advance for your time and reply.
Cheers,
Chris Lowder
