With ILIKE or extension CITEXT, does it have any impact on Indexes, like not picking index ?
ILIKE works only for operator LIKE not for operator = CITEXT seems some possibilities, Thanks Sridhar On Thu, Mar 28, 2019 at 2:07 PM Sameer Kumar <[email protected]> wrote: > > > On Thu, 28 Mar, 2019, 4:33 PM Steve Atkins, <[email protected]> wrote: > >> >> >> > On Mar 28, 2019, at 8:29 AM, Ron <[email protected]> wrote: >> > >> > On 3/28/19 3:23 AM, Sameer Kumar wrote: >> > [snip] >> >> You can write a query with upper function: >> >> >> >> select * from emp where upper(ename)=upper('aaa'); >> > >> > That's a guaranteed table scan. >> >> Unless you have an index on upper(ename). >> > > Yup, with this or overloading "=", one can create an expression based > index and benefit from it. > > >> Cheers, >> Steve >> >> >> >>
