Parens in queries

[Jochen S. <Joc...@ic...>]

Hello,

we are using Net::LDAP successfully for years now. Working on a query
generator, we just recognized that additional parens around a (partial
or complete) query can make a significant difference even if one would
not expect it: "(sn=name)" supplies results, while "((sn=name))" does
not. Is this behaviour defined? (We looked at RFC 2254 but did not find
a hint.)

Thanks in advance

                      Jochen