Alexey Mahotkin writes:
> AFAIK, currently the codepoints are sorted in their numerical order. I've
> searched the source code and could not find the actual place where this is
> done. I've seen executor/nodeSort.c and utils/tuplesort.c. AFAIU, they
> are generic sorting routines.
PostgreSQL uses the operating system's locale routines for this. So the
sort order depends on choosing a locale that can deal with Unicode.
--
Peter Eisentraut peter_e(at)gmx(dot)net