Grace Walkuski
05/07/2021, 5:06 PMdistinct
over grouping by all the fields? For example, is there a difference in efficiency between these two?
select distinct species, name from dataSource
select species, name from dataSource group by species, name
Grace Walkuski
05/07/2021, 5:14 PMMayank
Mayank
Grace Walkuski
05/07/2021, 5:32 PMdistinct
is more efficient internally? but from our perspective it doesn’t matter.Mayank
Grace Walkuski
05/07/2021, 5:36 PMKishore G
Grace Walkuski
05/07/2021, 5:49 PMGrace Walkuski
05/07/2021, 5:50 PM