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.. dialect:: mssql
    :name: Microsoft SQL Server


Auto Increment Behavior
-----------------------

SQL Server provides so-called "auto incrementing" behavior using the
``IDENTITY`` construct, which can be placed on an integer primary key.
SQLAlchemy considers ``IDENTITY`` within its default "autoincrement" behavior,
described at :paramref:`.Column.autoincrement`; this means
that by default, the first integer primary key column in a :class:`.Table`
will be considered to be the identity column and will generate DDL as such::

    from sqlalchemy import Table, MetaData, Column, Integer

    m = MetaData()
    t = Table('t', m,
            Column('id', Integer, primary_key=True),
            Column('x', Integer))
    m.create_all(engine)

The above example will generate DDL as:

.. sourcecode:: sql

    CREATE TABLE t (
        id INTEGER NOT NULL IDENTITY(1,1),
        x INTEGER NULL,
        PRIMARY KEY (id)
    )

For the case where this default generation of ``IDENTITY`` is not desired,
specify ``autoincrement=False`` on all integer primary key columns::

    m = MetaData()
    t = Table('t', m,
            Column('id', Integer, primary_key=True, autoincrement=False),
            Column('x', Integer))
    m.create_all(engine)

.. note::

    An INSERT statement which refers to an explicit value for such
    a column is prohibited by SQL Server, however SQLAlchemy will detect this
    and modify the ``IDENTITY_INSERT`` flag accordingly at statement execution
    time.  As this is not a high performing process, care should be taken to
    set the ``autoincrement`` flag appropriately for columns that will not
    actually require IDENTITY behavior.

Controlling "Start" and "Increment"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Specific control over the parameters of the ``IDENTITY`` value is supported
using the :class:`.schema.Sequence` object.  While this object normally
represents an explicit "sequence" for supporting backends, on SQL Server it is
re-purposed to specify behavior regarding the identity column, including
support of the "start" and "increment" values::

    from sqlalchemy import Table, Integer, Sequence, Column

    Table('test', metadata,
           Column('id', Integer,
                  Sequence('blah', start=100, increment=10),
                  primary_key=True),
           Column('name', String(20))
         ).create(some_engine)

would yield:

.. sourcecode:: sql

   CREATE TABLE test (
     id INTEGER NOT NULL IDENTITY(100,10) PRIMARY KEY,
     name VARCHAR(20) NULL,
     )

Note that the ``start`` and ``increment`` values for sequences are
optional and will default to 1,1.

INSERT behavior
^^^^^^^^^^^^^^^^

Handling of the ``IDENTITY`` column at INSERT time involves two key
techniques. The most common is being able to fetch the "last inserted value"
for a given ``IDENTITY`` column, a process which SQLAlchemy performs
implicitly in many cases, most importantly within the ORM.

The process for fetching this value has several variants:

* In the vast majority of cases, RETURNING is used in conjunction with INSERT
  statements on SQL Server in order to get newly generated primary key values:

  .. sourcecode:: sql

    INSERT INTO t (x) OUTPUT inserted.id VALUES (?)

* When RETURNING is not available or has been disabled via
  ``implicit_returning=False``, either the ``scope_identity()`` function or
  the ``@@identity`` variable is used; behavior varies by backend:

  * when using PyODBC, the phrase ``; select scope_identity()`` will be
    appended to the end of the INSERT statement; a second result set will be
    fetched in order to receive the value.  Given a table as::

        t = Table('t', m, Column('id', Integer, primary_key=True),
                Column('x', Integer),
                implicit_returning=False)

    an INSERT will look like:

    .. sourcecode:: sql

        INSERT INTO t (x) VALUES (?); select scope_identity()

  * Other dialects such as pymssql will call upon
    ``SELECT scope_identity() AS lastrowid`` subsequent to an INSERT
    statement. If the flag ``use_scope_identity=False`` is passed to
    :func:`.create_engine`, the statement ``SELECT @@identity AS lastrowid``
    is used instead.

A table that contains an ``IDENTITY`` column will prohibit an INSERT statement
that refers to the identity column explicitly.  The SQLAlchemy dialect will
detect when an INSERT construct, created using a core :func:`.insert`
construct (not a plain string SQL), refers to the identity column, and
in this case will emit ``SET IDENTITY_INSERT ON`` prior to the insert
statement proceeding, and ``SET IDENTITY_INSERT OFF`` subsequent to the
execution.  Given this example::

    m = MetaData()
    t = Table('t', m, Column('id', Integer, primary_key=True),
                    Column('x', Integer))
    m.create_all(engine)

    engine.execute(t.insert(), {'id': 1, 'x':1}, {'id':2, 'x':2})

The above column will be created with IDENTITY, however the INSERT statement
we emit is specifying explicit values.  In the echo output we can see
how SQLAlchemy handles this:

.. sourcecode:: sql

    CREATE TABLE t (
        id INTEGER NOT NULL IDENTITY(1,1),
        x INTEGER NULL,
        PRIMARY KEY (id)
    )

    COMMIT
    SET IDENTITY_INSERT t ON
    INSERT INTO t (id, x) VALUES (?, ?)
    ((1, 1), (2, 2))
    SET IDENTITY_INSERT t OFF
    COMMIT



This
is an auxilliary use case suitable for testing and bulk insert scenarios.


Collation Support
-----------------

Character collations are supported by the base string types,
specified by the string argument "collation"::

    from sqlalchemy import VARCHAR
    Column('login', VARCHAR(32, collation='Latin1_General_CI_AS'))

When such a column is associated with a :class:`.Table`, the
CREATE TABLE statement for this column will yield::

    login VARCHAR(32) COLLATE Latin1_General_CI_AS NULL

.. versionadded:: 0.8 Character collations are now part of the base string
   types.

LIMIT/OFFSET Support
--------------------

MSSQL has no support for the LIMIT or OFFSET keysowrds. LIMIT is
supported directly through the ``TOP`` Transact SQL keyword::

    select.limit

will yield::

    SELECT TOP n

If using SQL Server 2005 or above, LIMIT with OFFSET
support is available through the ``ROW_NUMBER OVER`` construct.
For versions below 2005, LIMIT with OFFSET usage will fail.

Nullability
-----------
MSSQL has support for three levels of column nullability. The default
nullability allows nulls and is explicit in the CREATE TABLE
construct::

    name VARCHAR(20) NULL

If ``nullable=None`` is specified then no specification is made. In
other words the database's configured default is used. This will
render::

    name VARCHAR(20)

If ``nullable`` is ``True`` or ``False`` then the column will be
``NULL` or ``NOT NULL`` respectively.

Date / Time Handling
--------------------
DATE and TIME are supported.   Bind parameters are converted
to datetime.datetime() objects as required by most MSSQL drivers,
and results are processed from strings if needed.
The DATE and TIME types are not available for MSSQL 2005 and
previous - if a server version below 2008 is detected, DDL
for these types will be issued as DATETIME.

.. _mssql_indexes:

Clustered Index Support
-----------------------

The MSSQL dialect supports clustered indexes (and primary keys) via the
``mssql_clustered`` option.  This option is available to :class:`.Index`,
:class:`.UniqueConstraint`. and :class:`.PrimaryKeyConstraint`.

To generate a clustered index::

    Index("my_index", table.c.x, mssql_clustered=True)

which renders the index as ``CREATE CLUSTERED INDEX my_index ON table (x)``.

.. versionadded:: 0.8

To generate a clustered primary key use::

    Table('my_table', metadata,
          Column('x', ...),
          Column('y', ...),
          PrimaryKeyConstraint("x", "y", mssql_clustered=True))

which will render the table, for example, as::

  CREATE TABLE my_table (x INTEGER NOT NULL, y INTEGER NOT NULL,
                         PRIMARY KEY CLUSTERED (x, y))

Similarly, we can generate a clustered unique constraint using::

    Table('my_table', metadata,
          Column('x', ...),
          Column('y', ...),
          PrimaryKeyConstraint("x"),
          UniqueConstraint("y", mssql_clustered=True),
          )

  .. versionadded:: 0.9.2

MSSQL-Specific Index Options
-----------------------------

In addition to clustering, the MSSQL dialect supports other special options
for :class:`.Index`.

INCLUDE
^^^^^^^

The ``mssql_include`` option renders INCLUDE(colname) for the given string
names::

    Index("my_index", table.c.x, mssql_include=['y'])

would render the index as ``CREATE INDEX my_index ON table (x) INCLUDE (y)``

.. versionadded:: 0.8

Index ordering
^^^^^^^^^^^^^^

Index ordering is available via functional expressions, such as::

    Index("my_index", table.c.x.desc())

would render the index as ``CREATE INDEX my_index ON table (x DESC)``

.. versionadded:: 0.8

.. seealso::

    :ref:`schema_indexes_functional`

Compatibility Levels
--------------------
MSSQL supports the notion of setting compatibility levels at the
database level. This allows, for instance, to run a database that
is compatible with SQL2000 while running on a SQL2005 database
server. ``server_version_info`` will always return the database
server version information (in this case SQL2005) and not the
compatibility level information. Because of this, if running under
a backwards compatibility mode SQAlchemy may attempt to use T-SQL
statements that are unable to be parsed by the database server.

Triggers
--------

SQLAlchemy by default uses OUTPUT INSERTED to get at newly
generated primary key values via IDENTITY columns or other
server side defaults.   MS-SQL does not
allow the usage of OUTPUT INSERTED on tables that have triggers.
To disable the usage of OUTPUT INSERTED on a per-table basis,
specify ``implicit_returning=False`` for each :class:`.Table`
which has triggers::

    Table('mytable', metadata,
        Column('id', Integer, primary_key=True),
        # ...,
        implicit_returning=False
    )

Declarative form::

    class MyClass(Base):
        # ...
        __table_args__ = {'implicit_returning':False}


This option can also be specified engine-wide using the
``implicit_returning=False`` argument on :func:`.create_engine`.

Enabling Snapshot Isolation
---------------------------

Not necessarily specific to SQLAlchemy, SQL Server has a default transaction
isolation mode that locks entire tables, and causes even mildly concurrent
applications to have long held locks and frequent deadlocks.
Enabling snapshot isolation for the database as a whole is recommended
for modern levels of concurrency support.  This is accomplished via the
following ALTER DATABASE commands executed at the SQL prompt::

    ALTER DATABASE MyDatabase SET ALLOW_SNAPSHOT_ISOLATION ON

    ALTER DATABASE MyDatabase SET READ_COMMITTED_SNAPSHOT ON

Background on SQL Server snapshot isolation is available at
http://msdn.microsoft.com/en-us/library/ms175095.aspx.

Known Issues
------------

* No support for more than one ``IDENTITY`` column per table
* reflection of indexes does not work with versions older than
  SQL Server 2005

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    characters.R   (   R   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR     s   t   IMAGEc           B   s   e  Z d  Z RS(   R   (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   $  s   t   BITc           B   s   e  Z d  Z RS(   R   (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   (  s   t   MONEYc           B   s   e  Z d  Z RS(   R   (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   ,  s   t
   SMALLMONEYc           B   s   e  Z d  Z RS(   R   (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   0  s   t   UNIQUEIDENTIFIERc           B   s   e  Z d  Z RS(   R  (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  4  s   t   SQL_VARIANTc           B   s   e  Z d  Z RS(   R  (   R   R   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  8  s   R   t   bigintt   smallintt   tinyintt   varchart   nvarchart   chart   nchart   textt   ntextt   decimalt   numerict   floatR   t	   datetime2t   datetimeoffsetR   R   t   smalldatetimet   binaryt	   varbinaryt   bitt   realt   imaget	   timestampt   moneyt
   smallmoneyt   uniqueidentifiert   sql_variantt   MSTypeCompilerc           B   s   e  Z d d   Z d   Z d   Z d   Z d   Z d   Z d   Z	 d   Z
 d   Z d	   Z d
   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z RS(   c         C   s   t  | d d  r" d | j } n d } | s: | j } n  | rQ | d | } n  d j g  | | f D] } | d k	 rd | ^ qd  S(   sY   Extend a string-type declaration with standard SQL
        COLLATE annotations.

        R   s
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   visit_DATE(   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt
   visit_date  s    c         C   s0   |  j  j t k  r |  j |  S|  j |  Sd  S(   N(   R   R3  R4  R5  R'  (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt
   visit_time  s    c         C   s   |  j  |  S(   N(   t   visit_IMAGE(   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_large_binary  s    c         C   s   d S(   NR   (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR9    s    c         C   s   |  j  d | d | j p d S(   NR   R  R/  (   R#  R  (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_VARBINARY  s    c         C   s   |  j  |  S(   N(   t	   visit_BIT(   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_boolean  s    c         C   s   d S(   NR   (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR<    s    c         C   s   d S(   NR   (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_MONEY  s    c         C   s   d S(   NR   (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_SMALLMONEY  s    c         C   s   d S(   NR  (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_UNIQUEIDENTIFIER  s    c         C   s   d S(   NR  (    (   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_SQL_VARIANT  s    N(   R   R   R   R#  R$  R%  R&  R'  R(  R)  R+  R-  R,  R.  R0  R1  R2  R*  R7  R8  R:  R9  R;  R=  R<  R>  R?  R@  RA  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  t  s4   																								t   MSExecutionContextc           B   sV   e  Z e Z e Z d Z d Z d    Z d   Z	 d   Z
 d   Z d   Z d   Z RS(   c         C   s(   |  j  j s  |  j  j |  d S| Sd  S(   Ni    (   R   t   supports_unicode_statementst   _encoder(   R   t	   statement(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _opt_encode  s    c         C   s/  |  j  r+|  j j j } | j } | d k	 } | r | j |  j d k p |  j j j o |  j j j	 r | j |  j j j d k p |  j j j	 o | j |  j j j k |  _
 n	 t |  _
 | o |  j j o |  j
 o |  j |  _ |  j
 r+|  j j |  j |  j d |  j j j |   d |   q+n  d S(   s#   Activate IDENTITY_INSERT if needed.i    s   SET IDENTITY_INSERT %s ONN(    (   t   isinsertt   compiledRE  R   t   _autoincrement_columnR   Rv   t   compiled_parameterst
   parameterst   _has_multi_parameterst   _enable_identity_insertt   Falset	   returningt   executemanyt   _select_lastrowidt   root_connectiont   _cursor_executeRC   RF  R   t   identifier_preparert   format_table(   R   t   tblt
   seq_columnt   insert_has_sequence(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   pre_exec  s4    			
		c      	   C   s  |  j  } |  j r| |  j j r: | j |  j d d |   n | j |  j d d |   |  j j   d } t | d  |  _ n  |  j	 s |  j
 s |  j r |  j j r t j |   |  _ n  |  j r| j |  j |  j d |  j j j |  j j j   d |   n  d S(	   s#   Disable IDENTITY_INSERT if enabled.s$   SELECT scope_identity() AS lastrowids   SELECT @@identity AS lastrowidi    s   SET IDENTITY_INSERT %s OFFN(    (    (    (   RR  RQ  R   t   use_scope_identityRS  RC   t   fetchallR   t
   _lastrowidRG  t   isupdatet   isdeleteRH  RO  R   t   FullyBufferedResultProxyt   _result_proxyRM  RF  RT  RU  RE  R   (   R   t   connt   row(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt	   post_exec&  s0    			c         C   s   |  j  S(   N(   R\  (   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_lastrowidF  s    c         C   sS   |  j  rO y9 |  j j |  j d |  j j j |  j j j	    WqO qO Xn  d  S(   Ns   SET IDENTITY_INSERT %s OFF(
   RM  RC   RW   RF  R   RT  RU  RH  RE  R   (   R   t   e(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   handle_dbapi_exceptionI  s    		c         C   s!   |  j  r |  j  St j |   Sd  S(   N(   R`  R   t   ResultProxy(   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_result_proxyT  s    	N(   R   R   RN  RM  RQ  R   R`  R\  RF  RY  Rc  Rd  Rf  Rh  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyRB    s   		,	 		t   MSSQLCompilerc           B   sG  e  Z e Z e j e j j i d  d 6d d 6d d 6d d 6 Z d   Z	 d	   Z
 d
   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z d   Z e e d  Z d   Z d   Z d   Z d   Z d$ d  Z d   Z  d   Z! d   Z" d    Z# d!   Z$ d"   Z% d#   Z& RS(%   t	   dayofyeart   doyt   weekdayt   dowt   millisecondt   millisecondst   microsecondt   microsecondsc         O   s&   i  |  _  t t |   j | |   d  S(   N(   t   tablealiasesR   Ri  R   (   R   t   argsR   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   g  s    	c         K   s   d S(   Nt   CURRENT_TIMESTAMP(    (   R   t   fnR   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_now_funck  s    c         K   s   d S(   Ns	   GETDATE()(    (   R   Ru  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_current_date_funcn  s    c         K   s   d |  j  | |  S(   Ns   LEN%s(   t   function_argspec(   R   Ru  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_length_funcq  s    c         K   s   d |  j  | |  S(   Ns   LEN%s(   Rx  (   R   Ru  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_char_length_funct  s    c         K   s,   d |  j  | j |  |  j  | j |  f S(   Ns   %s + %s(   R   Rx   R   (   R   R  t   operatorR   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_concat_op_binaryw  s    c         K   s   d S(   Nt   1(    (   R   t   exprR   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt
   visit_true|  s    c         K   s   d S(   Nt   0(    (   R   R~  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_false  s    c         K   s,   d |  j  | j |  |  j  | j |  f S(   Ns   CONTAINS (%s, %s)(   R   Rx   R   (   R   R  R{  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_match_op_binary  s    c         C   ss   | j  s | j d k	 r` | j  r' d p* d } | j d k	 r\ | j s\ | d | j 7} q\ n  | St j j |  |  S(   s-    MS-SQL puts TOP, its version of LIMIT, here s	   DISTINCT t    s   TOP %d N(   t	   _distinctt   _limitR   t   _offsetR   t   SQLCompilert   get_select_precolumns(   R   R   t   s(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s    	c         C   s   | S(   N(    (   R   R   R
  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_from_hint_text  s    c         C   s   | S(   N(    (   R   R   R
  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_crud_hint_text  s    c         C   s   d S(   NR  (    (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   limit_clause  s    c   	      K   sU  | j  r;t | d d  r;| j j s: t j d   n  | j  } | j } | j j } | j   } t	 | _
 | j t j j   j d |  j d   j d  j   } t j d  } t j g  | j D] } | j d k r | ^ q  } | j | | k  | d k	 r%| j | | | k  n  |  j | d t	 | St j j |  | |  Sd S(   s   Look for ``LIMIT`` and OFFSET in a select statement, and if
        so tries to wrap it in a subquery with ``row_number()`` criterion.

        t   _mssql_visits0   MSSQL requires an order_by when using an offset.t   order_byt   mssql_rnt	   iswrapperN(   R  R  R   t   _order_by_clauset   clausesR   t   CompileErrorR  t	   _generatet   TrueR  R4   R    t   funct
   ROW_NUMBERR   t   labelR  t   aliasR   R"  Rv   t   append_whereclauseR   R   R  t   visit_select(	   R   R   R   R  R  t   _order_by_clausesR  R"  t   limitselect(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s(    			c         C   sP   t  | d d   d  k	 rH | |  j k r= | j   |  j | <n  |  j | Sd  Sd  S(   NR   (   R  R   Rr  R  (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _schema_aliased_table  s
    c         K   sy   | | k s | r+ t  t |   j | |  S|  j |  } | d  k	 r\ |  j | d | | St  t |   j | |  Sd  S(   Nt   mssql_aliased(   R   Ri  t   visit_tableR  R   R   (   R   R   R  t   iscrudR   R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s    c         K   s&   | j  | d <t t |   j | |  S(   NR  (   t   originalR   Ri  t   visit_alias(   R   R  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s    c         K   s8   |  j  j | j | j  } d | |  j | j |  f S(   Ns   DATEPART("%s", %s)(   t   extract_mapt   gett   fieldR   R~  (   R   t   extractR   R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_extract  s    c         C   s   d |  j  j |  S(   Ns   SAVE TRANSACTION %s(   t   preparert   format_savepoint(   R   t   savepoint_stmt(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_savepoint  s    c         C   s   d |  j  j |  S(   Ns   ROLLBACK TRANSACTION %s(   R  R  (   R   R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_rollback_to_savepoint  s    c      	   K   s   | j  d  k	 r# |  j r# |  j s/ |  j   r |  j | j   } | d  k	 r t j | |  } | d  k	 r | | j | j | | j | j	 f | j
  n  t t |   j | |  Sn  t t |   j | d | | S(   Nt   add_to_result_map(   R   R   R]  R^  t   is_subqueryR  R   t   _corresponding_column_or_errort   nameRv   R   R   Ri  t   visit_column(   R   R4   R  R   t   tt	   converted(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s"    c         K   s~   t  | j t j  re | j t j k re t  | j t j  re |  j t j | j | j | j  |  St	 t
 |   j | |  S(   s]   Move bind parameters to the right-hand side of an operator, where
        possible.

        (   R   Rx   R   t   BindParameterR{  t   eqR   R   t   BinaryExpressionR   Ri  t   visit_binary(   R   R  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s    	c      	   C   s   |  j  s |  j r' | j j d  } n | j j d  } t j |  } g  t j |  D]* } |  j d  | j
 |  t t i   ^ qX } d d j |  S(   Nt   insertedt   deleteds   OUTPUT s   , (   RG  R]  R   R  t   sql_utilt   ClauseAdapterR   t   _select_iterablest   _label_select_columnR   t   traverseR  RN  Ru   (   R   t   stmtt   returning_colst   targett   adapterR"  t   columns(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   returning_clause
  s    =c         C   s   d S(   Nt   WITH(    (   R   t	   recursive(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_cte_preamble  s    c         C   s?   t  | t j  r | j d   St t |   j | | |  Sd  S(   N(   R   R   t   FunctionR  R   R   Ri  t   label_select_column(   R   R   R4   t   asfrom(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  "  s    c         C   s   d S(   NR  (    (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   for_update_clause)  s    c         K   sA   |  j  | j |  } | r9 |  j   s1 | j r9 d | Sd Sd  S(   Ns
    ORDER BY R  (   R   R  R  R  (   R   R   R   R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   order_by_clause.  s    c            s.   d d j      f d   | g | D  S(   s  Render the UPDATE..FROM clause specific to MSSQL.

        In MSSQL, if the UPDATE statement involves an alias of the table to
        be updated, then the table itself must be added to the FROM list as
        well. Otherwise, it is optional. Here, we add it regardless.

        s   FROM s   , c         3   s-   |  ]# } | j   d  t d    Vq d S(   R  t	   fromhintsN(   t   _compiler_dispatchR  (   t   .0R  (   t
   from_hintsR   R   (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pys	   <genexpr>C  s   (   Ru   (   R   t   update_stmtt
   from_tablet   extra_fromsR  R   (    (   R  R   R   sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   update_from_clause7  s    	N('   R   R   R  t   returning_precedes_valuesR   t   update_copyR   R  R  R   Rv  Rw  Ry  Rz  R|  R  R  R  R  R  R  R  R  R  RN  R  R  R  R  R  R   R  R  R  R  R  R  R  R  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyRi  [  sH   																											t   MSSQLStrictCompilerc           B   s/   e  Z d  Z e Z d   Z d   Z d   Z RS(   s   A subclass of MSSQLCompiler which disables the usage of bind
    parameters where not allowed natively by MS-SQL.

    A dialect may use this compiler on a platform where native
    binds are used.

    c         K   s6   t  | d <d |  j | j |  |  j | j |  f S(   Nt   literal_bindss   %s IN %s(   R  R   Rx   R   (   R   R  R{  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_in_op_binaryS  s    
c         K   s6   t  | d <d |  j | j |  |  j | j |  f S(   NR  s   %s NOT IN %s(   R  R   Rx   R   (   R   R  R{  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_notin_op_binaryZ  s    
c         C   sG   t  t |  t j  r* d t |  d St t |   j | |  Sd S(   s5  
        For date and datetime values, convert to a string
        format acceptable to MSSQL. That seems to be the
        so-called ODBC canonical date format which looks
        like this:

            yyyy-mm-dd hh:mi:ss.mmm(24h)

        For other data types, call the base class implementation.
        t   'N(   t
   issubclassR   R   R   t   strR   R  t   render_literal_value(   R   R   R!  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  a  s    (   R   R   R   R  t   ansi_bind_rulesR  R  R  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  H  s
   		t   MSDDLCompilerc           B   s8   e  Z d    Z e d  Z d   Z d   Z d   Z RS(   c         K   sR  |  j  j |  d |  j j j | j  } | j d  k	 r} | j sc | j sc t	 | j
 t j  rp | d 7} q} | d 7} n  | j d  k r t j d   n  t	 | j
 t j  r| j
 j d k r d } n | j
 j p d } | d | | j
 j p d f 7} nK | | j j k r"| d 7} n, |  j |  } | d  k	 rN| d	 | 7} n  | S(
   NR  s	    NOT NULLs    NULLs;   mssql requires Table-bound columns in order to generate DDLi    i   s    IDENTITY(%s,%s)s    IDENTITY(1,1)s	    DEFAULT (   R  t   format_columnR   t   type_compilerR   R   t   nullableR   t   primary_keyR   R	   t	   sa_schemat   SequenceR   R   R  t   startt	   incrementRI  t   get_column_default_string(   R   R4   R   t   colspecR  R	   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_column_specificationw  s*    ,		c   	         s;  | j  }   j |    j } d } | j r; | d 7} n  | j d d rY | d 7} n  | d   j | d | | j | j  d j   f d	   | j	 D  f 7} | j d d
 r7g  | j d d
 D]. } t
 | t j  r | j j | n | ^ q } | d d j g  | D] } | j | j  ^ q 7} n  | S(   Ns   CREATE s   UNIQUE t   mssqlR1   s
   CLUSTERED s   INDEX %s ON %s (%s)t   include_schemas   , c         3   s-   |  ]# }   j  j | d  t d t Vq d S(   t   include_tableR  N(   t   sql_compilerR   RN  R  (   R  R~  (   R   (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pys	   <genexpr>  s   t   includes    INCLUDE (%s)(   t   elementt   _verify_index_tableR  R   t   dialect_optionst   _prepared_index_nameRU  R   Ru   t   expressionsR   R   R   R"  t   quoteR  (	   R   R<   R  Ro   R  R
  t   colt
   inclusionsR"  (    (   R   sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_create_index  s,    			C	*c         C   s2   d |  j  | j d t |  j j | j j  f S(   Ns   
DROP INDEX %s ON %sR  (   R  R  RN  R  RU  R   (   R   RO   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_drop_index  s    c            s   t  |  d k r d Sd } | j d  k	 rH | d   j j |  7} n  | d 7} | j d d rp | d 7} n  | d d	 j   f d
   | D  7} |   j |  7} | S(   Ni    R  s   CONSTRAINT %s s   PRIMARY KEY R  R1   s
   CLUSTERED s   (%s)s   , c         3   s$   |  ] }   j  j | j  Vq d  S(   N(   R  R  R  (   R  R"  (   R   (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pys	   <genexpr>  s   (   t   lenR  R   R  t   format_constraintR  Ru   t   define_constraint_deferrability(   R   R7   R
  (    (   R   sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_primary_key_constraint  s    
c            s   t  |  d k r d Sd } | j d  k	 rH | d   j j |  7} n  | d 7} | j d d rp | d 7} n  | d d	 j   f d
   | D  7} |   j |  7} | S(   Ni    R  s   CONSTRAINT %s s   UNIQUE R  R1   s
   CLUSTERED s   (%s)s   , c         3   s$   |  ] }   j  j | j  Vq d  S(   N(   R  R  R  (   R  R"  (   R   (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pys	   <genexpr>  s   (   R  R  R   R  R  R  Ru   R  (   R   R7   R
  (    (   R   sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   visit_unique_constraint  s    
(   R   R   R  RN  R  R  R  R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  u  s
   	#&		t   MSIdentifierPreparerc           B   s,   e  Z e Z d    Z d   Z d d  Z RS(   c         C   s&   t  t |   j | d d d d d  S(   Nt   initial_quotet   [t   final_quotet   ](   R   R  R   (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR     s    c         C   s   | S(   N(    (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _escape_identifier  s    c         C   s;   d j  g  | j d  D] } |  j | |  ^ q  } | S(   s'   Prepare a quoted table and schema name.t   .(   Ru   t   splitR  (   R   R   t   forceR   t   result(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   quote_schema  s    7N(   R   R   t   RESERVED_WORDSt   reserved_wordsR   R  R   R  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s   		c            s   d    f d  } t |    S(   Nc      
      s7   t  |  |  \ } } t | |   |  | | | | |  S(   N(   t   _owner_plus_dbt
   _switch_db(   R   t
   connectionR   R   t   dbnamet   owner(   Ru  (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   wrap  s    (   R   R   (   Ru  R  (    (   Ru  sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _db_plus_owner_listing  s    c            s   d    f d  } t |    S(   Nc            s:   t  |  |  \ } } t | |   |  | | | | | | 	 S(   N(   R  R  (   R   R  t	   tablenameR   R   R  R  (   Ru  (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s    (   R   R   (   Ru  R  (    (   Ru  sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _db_plus_owner  s    c         O   s\   |  r) | j  d  } | j d |   n  z | | |   SWd  |  rW | j d |  n  Xd  S(   Ns   select db_name()s   use %s(   t   scalarRW   (   R  R  Ru  t   argR   t
   current_db(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR  	  s    c         C   s=   | s d  |  j f Sd | k r/ | j d d  Sd  | f Sd  S(   NR  i   (   R   t   default_schema_nameR  (   R   R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    s
    t	   MSDialectc           B   s  e  Z d  Z e Z e Z e Z e Z	 d Z
 d Z i e e j 6e e j 6e e j 6Z e Z e Z e Z e Z d Z e Z e Z e Z e Z  e! j" i e d 6f e! j# i e d 6f e! j$ i e d 6d d 6f g Z& d e d d d  Z' d   Z( d   Z) d   Z* d	   Z+ e, d
    Z- e. j/ d    Z0 e. j/ e1 d     Z2 e. j/ e1 d     Z3 e. j/ e, d     Z4 e. j/ e, d     Z5 e. j/ e, d     Z6 e. j/ e, d     Z7 e. j/ e, d     Z8 RS(   R  i   t   dboR1   R  c         K   s_   t  | p d  |  _ | |  _ | |  _ t  | p3 d  p? |  j |  _ t t |   j |   d  S(   Ni    (   R   t   query_timeoutt   schema_nameRZ  t   max_identifier_lengthR   R  R   (   R   R  RZ  R  R  t   opts(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR   F  s    		c         C   s*   | j  d  t t |   j | |  d  S(   Ns$   IF @@TRANCOUNT = 0 BEGIN TRANSACTION(   RW   R   R  t   do_savepoint(   R   R  R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR!  S  s    c         C   s   d  S(   N(    (   R   R  R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   do_release_savepointX  s    c         C   s   t  t |   j |  |  j d t t d d   k rb t j d d j d   |  j D   n  |  j t	 k r d |  j
 k r t |  _ n  |  j t k r t |  _ n  d  S(   Ni    i   i   s   Unrecognized server version info '%s'.   Version specific behaviors may not function properly.   If using ODBC with FreeTDS, ensure server version 7.0 or 8.0, not 4.2, is configured in the FreeTDS configuration.R  c         s   s   |  ] } t  |  Vq d  S(   N(   R  (   R  R   (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pys	   <genexpr>g  s    t   implicit_returning(   R   R  t
   initializeR3  t   listt   rangeR   t   warnRu   t   MS_2005_VERSIONt   __dict__R  R#  R4  t   supports_multivalues_insert(   R   R  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR$  \  s    "!c         C   sX   |  j  t k  r |  j St j d  } | j |  } | d  k	 rM t j |  S|  j Sd  S(   Ns   
            SELECT default_schema_name FROM
            sys.database_principals
            WHERE principal_id=database_principal_id()
        (	   R3  R(  R  R    R
  R  R   R   t	   text_type(   R   R  t   queryR  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   _get_default_schema_namen  s    	c   
      C   sv   t  j } | j j | k } | rB t j | | j j | k  } n  t j | g |  } | j |  }	 |	 j	   d  k	 S(   N(   t   ischemaR  R"  t
   table_nameR    t   and_t   table_schemaR   RW   t   firstR   (
   R   R  R  R  R  R   R  t   whereclauseR  R"  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt	   has_table}  s    		c         K   sW   t  j t j j j g d t j j j g } g  | j |  D] } | d ^ q= } | S(   NR  i    (   R    R   R.  t   schemataR"  R  RW   (   R   R  R   R  t   rt   schema_names(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_schema_names  s    &c   
      K   s   t  j } t j | j j g t j | j j | k | j j d k  d | j j g } g  | j	 |  D] } | d ^ qg }	 |	 S(   Ns
   BASE TABLER  i    (
   R.  t   tablesR    R   R"  R/  R0  R1  t
   table_typeRW   (
   R   R  R  R  R   R   R9  R  R6  t   table_names(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_table_names  s    	&c   
      K   s   t  j } t j | j j g t j | j j | k | j j d k  d | j j g } g  | j	 |  D] } | d ^ qg }	 |	 S(   Nt   VIEWR  i    (
   R.  R9  R    R   R"  R/  R0  R1  R:  RW   (
   R   R  R  R  R   R   R9  R  R6  t
   view_names(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_view_names  s    	&c   
      K   s  |  j  t k  r g  S| j t j d d t j d | t j d t   t j d | t j d t   g d i t j	   d 6 } i  } x? | D]7 }	 i |	 d d 6|	 d d	 k d
 6g  d 6| |	 d <q W| j t j d d t j d | t j d t   t j d | t j d t   g d i t j	   d 6 } x> | D]6 }	 |	 d | k r<| |	 d d j
 |	 d  q<q<Wt | j    S(   Ns   select ind.index_id, ind.is_unique, ind.name from sys.indexes as ind join sys.tables as tab on ind.object_id=tab.object_id join sys.schemas as sch on sch.schema_id=tab.schema_id where tab.name = :tabname and sch.name=:schname and ind.is_primary_key=0t
   bindparamst   tabnamet   convert_unicodet   schnamet   typemapR  t	   is_uniquei   R   t   column_namest   index_idsR  select ind_col.index_id, ind_col.object_id, col.name from sys.columns as col join sys.tables as tab on tab.object_id=col.object_id join sys.index_columns as ind_col on (ind_col.column_id=col.column_id and ind_col.object_id=tab.object_id) join sys.schemas as sch on sch.schema_id=tab.schema_id where tab.name=:tabname and sch.name=:schname(   R3  R(  RW   R    R
  t	   bindparamt   sqltypest   StringR  t   Unicodet   appendR%  R   (
   R   R  R  R  R  R   R   t   rpt   indexesRb  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_indexes  s8    
$c   	      K   st   | j  t j d d t j d | t j d t   t j d | t j d t   g  } | rp | j   } | Sd  S(   Ns   select definition from sys.sql_modules as mod, sys.views as views, sys.schemas as sch where mod.object_id=views.object_id and views.schema_id=sch.schema_id and views.name=:viewname and sch.name=:schnameR@  t   viewnameRB  RC  (   RW   R    R
  RH  RI  RJ  R  R  (	   R   R  RP  R  R  R   R   RM  t   view_def(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_view_definition  s    c      
   K   s  t  j } | r< t j | j j | k | j j | k  } n | j j | k } t j | g | d | j j g }	 | j	 |	  }
 g  } xt
 r|
 j   } | d  k r Pn  | | j j | | j j | | j j d k | | j j | | j j | | j j | | j j | | j j f \ } } } } } } } } |  j j | d   } i  } | t t t t t t t t t j  f	 k r| | d <| r| | d <n  | t k s| t t f k r| d k r| j! d  qn  | d  k rt" j# d | | f  t j$ } nA t% | t j&  r;| t' k	 r;| | d <| | d <n  | |   } i | d	 6| d
 6| d 6| d 6t( d 6} | j) |  q Wi  } x | D] } | | | d	 <qW| j	 d | | f  } d  } x t
 rP| j   } | d  k rPn  | d | d } } | j* d  r| | k r| } t
 | | d <t+ d	 d |  | | d <PqqW| j,   | d  k	 r|  j- t. k rd | | f } | j	 d | | f  } | j/   } | d  k	 r| d d  k	 r| | d j0 i t1 | d  d 6t1 | d  d 6 qn  | S(   NR  t   YESR  R   is*   Did not recognize type '%s' of column '%s't   scaleR   R  R   R  R	   t   autoincrements2   sp_columns @table_name = '%s', @table_owner = '%s'i   i   Rj   s   %s_identityt   sequences   %s.%ss)   select ident_seed('%s'), ident_incr('%s')i    R  i   R  (2   R.  R  R    R0  R"  R/  R1  R   t   ordinal_positionRW   R  t   fetchoneR   t   column_namet	   data_typet   is_nullablet   character_maximum_lengtht   numeric_precisiont   numeric_scalet   column_defaultt   collation_namet   ischema_namesR  t   MSStringt   MSChart
   MSNVarchart   MSNChart   MSTextt   MSNTextt   MSBinaryt   MSVarBinaryRI  t   LargeBinaryt   popR   R'  t   NULLTYPER  t   Numerict   MSRealRN  RL  t   endswitht   dictR0   R3  R(  R2  R   R   (   R   R  R  R  R  R   R   R  R3  R  R"  t   colsRb  R  R   R  t   charlent   numericprect   numericscaleR	   R   R   R   t   cdictt   colmapR  RC   t   ict   col_namet	   type_namet   table_fullname(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_columns  s    		+	


		
c         K   s#  g  } t  j } t  j j d  }	 t j |	 j j | j j |	 j j	 g t j
 | j j	 |	 j j	 k | j j |	 j j k |	 j j | k |	 j j | k   }
 | j |
  } d  } x] | D]U } d | | j j j k r | j | d  | d  k r| |	 j j	 j } qq q Wi | d 6| d 6S(   Nt   Ct   PRIMARYi    t   constrained_columnsR  (   R.  t   constraintst   key_constraintsR  R    R   R"  RY  t   constraint_typet   constraint_nameR0  R1  R/  RW   R   R  RL  (   R   R  R  R  R  R   R   t   pkeyst   TCR|  R  R"  R  Rb  (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_pk_constrainth  s$    		c      	   K   s  t  j } t  j j d  } t  j j d  }	 t j | j j |	 j j |	 j j	 |	 j j | j j
 | j j | j j | j j g t j | j j	 | k | j j | k | j j
 | j j
 k |	 j j
 | j j k | j j |	 j j k  d | j j
 |	 j j g }
 g  } d  g  g  } } } d   } t j |  } x | j |
  j   D] } | \ } } } } } } } } | | } | | d <| d s| | d <| d  k	 s| | k r| r| d | } n  | | d <qn  | d	 | d
 } } | j |  | j |  qJWt | j    S(   NR|  t   RR  c           S   s'   i d  d 6g  d 6d  d 6d  d 6g  d 6S(   NR  R~  t   referred_schemat   referred_tablet   referred_columns(   R   (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   fkey_rec  s    R  R  R  R  R~  R  (   R.  t   ref_constraintsR  R  R    R   R"  RY  R1  R/  R  t   match_optiont   update_rulet   delete_ruleR0  t   unique_constraint_nameRW  R   R   t   defaultdictRW   R[  RL  R%  R   (   R   R  R  R  R  R   R   t   RRR|  R  R  t   fkeyst   fknmt   scolst   rcolsR  R6  t   scolt   rschemat   rtblt   rcolt   rfknmt   fkmatcht   fkuprulet	   fkdelrulet   rect
   local_colst   remote_cols(    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   get_foreign_keys  sD    					



(    N(9   R   R   R  R  t   supports_default_valuesRN  t   supports_empty_insertRB  t   execution_ctx_clsRZ  R  R  R   RI  t   DateTimeR   t   DateR   t   Timet   colspecsRa  t   supports_native_booleant   supports_unicode_bindst   postfetch_lastrowidR3  Ri  t   statement_compilerR  t   ddl_compilerR  R  R  R  R  t   PrimaryKeyConstraintt   UniqueConstraintt   IndexR   t   construct_argumentsR   R!  R"  R$  R-  R  R4  R   t   cacheR8  R  R<  R?  RO  RR  R{  R  R  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyR    sf   

	
	
						;c(   i
   (   i	   (   i   (l   R   R   R{  R   R  R    R   R  R   R   R   R   R  R   R   R   R	   R
   RI  R   R   R   R   R   R   R   R   R   R   R   R   R   R   R   R   R   R   R.  R4  R(  t   MS_2000_VERSIONR   R  R   t   IntegerR   R  R   R   t   _MSTimet   objectR   R  R   R   R   t
   TypeEngineR   R   t   UnicodeTextR   Rj  R   R   R   R   R  R  t
   MSDateTimet   MSDateRn  t   MSTinyIntegert   MSTimet   MSSmallDateTimet   MSDateTime2t   MSDateTimeOffsetRf  Rg  Rb  Rd  Rc  Re  Rh  Ri  t   MSImaget   MSBitt   MSMoneyt   MSSmallMoneyt   MSUniqueIdentifiert	   MSVariantRa  t   GenericTypeCompilerR  t   DefaultExecutionContextRB  R  Ri  R  t   DDLCompilerR  t   IdentifierPreparerR  R  R  R  R  t   DefaultDialectR  (    (    (    sd   /var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/dialects/mssql/base.pyt   <module>l  s   ""j			
zm-t					