Hello,
in my company, some columns rarely used in a PG database 14.8 have been set
to NULL in order to save disk space (datecreation & acteurcreation in
following table) .
create table example
(
id varchar(25) not null,
datecreation timestamp(6),
acteurcreation varchar(50),
valeurunit smallint
)
I am wondering if it is really useful for every type of column.
Intuitively, i would say that it does not save space for fixed field
datecreation as it is a fixed size column.
Do we save 8 bytes by timestamp column updated to NULL or not ?
Have a good day
Sébastien TANIERE