"Vyacheslav Kalinin" <vka@mgcp.com> writes:
> Case insensitive pattern matching gives strange results for non-ascii
> character (such as UTF-8 encoded cyrillic letters):
Yeah, the regex locale support doesn't work well in multibyte character
sets --- it basically will not recognize that non-ASCII characters have
any case variants. Fixing this has been on the TODO list for awhile ...
regards, tom lane