Re: [SQL] create index on function - why?

[Philip Warner]

At 11:46 AM 15/02/2002 -0500, Tom Lane wrote:

A functional index is sort of like a hidden, precomputed column added to
your table.

One of the things I keep running into is the desire for a mixed functional/data index. I know the workaround is to build a function that combines all fields, but would it be hard to allow mixed indexes:

create table users(id integer, last_name text);
create index users_id_name on users(id,lower(name));

?




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