Query:
SELECT strip(to_tsvector('simple','toop/6 foo bar')),strip(to_tsvector('simple','tüüp/6 foo bar'));
PosgreSQL 9.3.5, Collation - Estonian
Results are:
'bar' 'foo' 'toop/6'
'/6' 'bar' 'foo' 'tüüp'
The string is converted to vector differently, when the string contains national charcters "äöüõžš".