def __init__(self, precision=None, scale=None, asdecimal=False, **kw):
"""Construct a FLOAT.
:param precision: Total digits in this number. If scale and precision
are both None, values are stored to limits allowed by the server.
:param scale: The number of digits after the decimal point.
"""
super(FLOAT, self).__init__(precision=precision, scale=scale,
asdecimal=asdecimal, **kw)
python类FLOAT的实例源码
def visit_FLOAT(self, type_):
if type_.scale is not None and type_.precision is not None:
return "FLOAT(%s, %s)" % (type_.precision, type_.scale)
else:
return "FLOAT"
def __init__(self, precision=None, scale=None, asdecimal=False, **kw):
"""Construct a FLOAT.
:param precision: Total digits in this number. If scale and precision
are both None, values are stored to limits allowed by the server.
:param scale: The number of digits after the decimal point.
"""
super(FLOAT, self).__init__(precision=precision, scale=scale,
asdecimal=asdecimal, **kw)
def visit_FLOAT(self, type_):
if type_.scale is not None and type_.precision is not None:
return "FLOAT(%s, %s)" % (type_.precision, type_.scale)
else:
return "FLOAT"
def __init__(self, precision=None, scale=None, asdecimal=False, **kw):
"""Construct a FLOAT.
:param precision: Total digits in this number. If scale and precision
are both None, values are stored to limits allowed by the server.
:param scale: The number of digits after the decimal point.
"""
super(FLOAT, self).__init__(precision=precision, scale=scale,
asdecimal=asdecimal, **kw)
def visit_FLOAT(self, type_):
if type_.scale is not None and type_.precision is not None:
return "FLOAT(%s, %s)" % (type_.precision, type_.scale)
else:
return "FLOAT"
def sqltype_to_stdtype(sqltype):
import sqlalchemy.types as sqltypes
if isinstance(sqltype, (sqltypes.VARCHAR, sqltypes.CHAR, sqltypes.TEXT, sqltypes.Enum, sqltypes.String)):
return _STRING_TYPE
if isinstance(sqltype, (sqltypes.DATETIME, sqltypes.DATE, sqltypes.TIME, sqltypes.TIMESTAMP)):
return _DATE_TYPE
if isinstance(sqltype, (sqltypes.INTEGER, sqltypes.BIGINT, sqltypes.SMALLINT, sqltypes.Integer)):
return _INTEGER_TYPE
if isinstance(sqltype, (sqltypes.REAL, sqltypes.DECIMAL, sqltypes.NUMERIC, sqltypes.FLOAT)):
return _DECIMAL_TYPE
if isinstance(sqltype, sqltypes.BOOLEAN):
return _BOOLEAN_TYPE
