On 2 August 2011 08:42, Adarsh Sharma <adarsh.sha...@orkash.com> wrote:
> Dear all, > > Just want to know which join is better for querying data faster. > > I have 2 tables A ( 70 GB ) & B ( 7 MB ) > > A has 10 columns & B has 3 columns.Indexes exist on both tables's ids. > > select p.* from table A p, B q where p.id=q.id > > or > > select p.* from table B q , A p where q.id=p.id > > > Hi, it really doesn't matter. PostgreSQL can reorder the joins as it likes. And you can always check, but I think the plans will be the same. regards Szymon
