Thread

Re: [HACKERS] subselects

Bruce Momjian <maillist@candle.pha.pa.us> — 1998-01-11T05:23:29Z

> 
> Bruce Momjian wrote:
> > 
> > OK, a few questions:
> > 
> >         Should we use sortmerge, so we can use our psort as temp tables,
> > or do we use hashunique?
> > 
> >         How do we pass the query to the optimizer?  How do we represent
> > the range table for each, and the links between them in correlated
> > subqueries?
> 
> My suggestion is just use varlevel in Var and don't put upper query'
> relations into subquery range table.
> 
> Vadim
> 

OK.

-- 
Bruce Momjian
maillist@candle.pha.pa.us