On Sat, 22 May 2021 at 10:59, Nagaraj Raj <nagaraj.sf@xxxxxxxxx> wrote: > ERROR: empty range bound specified for partition "mytable_z" DETAIL: Specified lower bound ('Z') is greater than or equal to upper bound ('['). SQL state: 42P17 It looks like '[' does not come after 'Z' in your collation. David