Classe « ARRAY »

Constructeur sqlalchemy.ARRAY.__init__

Signature de la constructeur __init__

def __init__(self, item_type, as_tuple=False, dimensions=None, zero_indexes=False) 

Description

__init__.__doc__

Construct an :class:`_types.ARRAY`.

        E.g.::

          Column('myarray', ARRAY(Integer))

        Arguments are:

        :param item_type: The data type of items of this array. Note that
          dimensionality is irrelevant here, so multi-dimensional arrays like
          ``INTEGER[][]``, are constructed as ``ARRAY(Integer)``, not as
          ``ARRAY(ARRAY(Integer))`` or such.

        :param as_tuple=False: Specify whether return results
          should be converted to tuples from lists.  This parameter is
          not generally needed as a Python list corresponds well
          to a SQL array.

        :param dimensions: if non-None, the ARRAY will assume a fixed
         number of dimensions.   This impacts how the array is declared
         on the database, how it goes about interpreting Python and
         result values, as well as how expression behavior in conjunction
         with the "getitem" operator works.  See the description at
         :class:`_types.ARRAY` for additional detail.

        :param zero_indexes=False: when True, index values will be converted
         between Python zero-based and SQL one-based indexes, e.g.
         a value of one will be added to all index values before passing
         to the database.