diff options
Diffstat (limited to '.venv/lib/python3.12/site-packages/pgvector/sqlalchemy/bit.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/pgvector/sqlalchemy/bit.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/pgvector/sqlalchemy/bit.py b/.venv/lib/python3.12/site-packages/pgvector/sqlalchemy/bit.py new file mode 100644 index 00000000..0f83f3c6 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/pgvector/sqlalchemy/bit.py @@ -0,0 +1,26 @@ +from sqlalchemy.dialects.postgresql.base import ischema_names +from sqlalchemy.types import UserDefinedType, Float + + +class BIT(UserDefinedType): + cache_ok = True + + def __init__(self, length=None): + super(UserDefinedType, self).__init__() + self.length = length + + def get_col_spec(self, **kw): + if self.length is None: + return 'BIT' + return 'BIT(%d)' % self.length + + class comparator_factory(UserDefinedType.Comparator): + def hamming_distance(self, other): + return self.op('<~>', return_type=Float)(other) + + def jaccard_distance(self, other): + return self.op('<%>', return_type=Float)(other) + + +# for reflection +ischema_names['bit'] = BIT |