-- Tests for nlssort
-- Skip this test unless it's a Linux/glibc system with the "en_US.utf8" locale installed.
SELECT getdatabaseencoding() <> 'UTF8' OR
       NOT EXISTS (SELECT 1 FROM pg_collation WHERE collname = 'en_US' AND collencoding = pg_char_to_encoding('UTF8')) OR
       version() !~ 'linux-gnu'
       AS skip_test \gset
\if :skip_test
invalid command \if
\quit