Hello, I created a multicolumn index on the columns c_1,..,c_n .If I do use only a true subset of these columns in a SQL query, is the index still efficient?
Or is it better to create another multicolumn index defined on this subset? Thanks for any comments! -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
