Thanks Ted. Milinda
On Sun, Aug 30, 2015 at 12:52 AM, Ted Dunning <[email protected]> wrote: > Milinda, > > Factoring the version from SQL to an actual execution plan has a few > benefits. One of the biggest is that the logical plan doesn't vary if the > cluster size or shape or locality changes, but the physical plan does. > This allows the SQL => logical translation and optimization to be > developed, tested and debugged independent of the cluster used. > > > > On Sat, Aug 29, 2015 at 5:36 PM, Milinda Pathirage <[email protected]> > wrote: > > > Hi devs, > > > > Does anybody know the reason behind having a Drill specific logical plan > > layer (DrillRel) and a physical plan layer (Prel)? > > > > Thanks in advance > > Milinda > > > > > > -- > > Milinda Pathirage > > > > PhD Student | Research Assistant > > School of Informatics and Computing | Data to Insight Center > > Indiana University > > > > twitter: milindalakmal > > skype: milinda.pathirage > > blog: http://milinda.pathirage.org > > > -- Milinda Pathirage PhD Student | Research Assistant School of Informatics and Computing | Data to Insight Center Indiana University twitter: milindalakmal skype: milinda.pathirage blog: http://milinda.pathirage.org
