Revision e3f9bbaa

b/pithos/backends/simple.py
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    def _list_objects(self, path, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[]):
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        cont_prefix = path + '/'
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        if keys and len(keys) > 0:
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            sql = '''select o.name from objects o, metadata m where o.name like ? and
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            sql = '''select distinct o.name from objects o, metadata m where o.name like ? and
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                        m.name = o.name and m.key in (%s) order by o.name'''
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            sql = sql % ', '.join('?' * len(keys))
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            param = (cont_prefix + prefix + '%',) + tuple(keys)

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