Dear Postgresql experts, I have a base table that declares a primary key spanning a couple of columns:
create table B ( id integer, xx someothertype, ..... primary key (id, xx) ); and a number of derived tables that inherit from B: create table T ( .... ) inherits (B); An index is automatically created for B because of the primary key. If I search for something in T using the key columns, e.g. I do select * from T where id=1 and xx=something; will the index be used? Or must I explicity create an index on id and xx for T and each of the other derived tables? Is it any different if I search in B and find rows that are actually in T? (Slightly unrelated: does the index on (id,xx) help when I am searching only on id?) Thanks for any insight anyone can offer. --Phil. ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
