Hello.
Some days ago I started using partitioning to make it possible to work
with large amount of data.
I created master table as documentation suggest, created some child
tables which inherit from the master one and then added a constraint
for each child table to define the allowed key value. Constraint was
like:
CHECK (site_id = 'google_com')
Now here is my question:
While reading the documentation I came across the following
suggestion: "For each partition, create an index on the key column(s)"
Should I do that if the key will be the same for the whole partition?
Will there be any benefits of having an index on site_id column?
When I first read it, I decided that if all rows have the same key
(say site_id = 'google_com') then there is no need in index.
Thanks.
--
Sergey Samokhin
