sql.py 文件源码

def __init__(self, engine, statement, parameters):
        """constructs a new Compiled object.

        engine - SQLEngine to compile against

        statement - ClauseElement to be compiled

        parameters - optional dictionary indicating a set of bind parameters
        specified with this Compiled object.  These parameters are the "default"
        values corresponding to the ClauseElement's BindParamClauses when the Compiled 
        is executed.   In the case of an INSERT or UPDATE statement, these parameters 
        will also result in the creation of new BindParamClause objects for each key
        and will also affect the generated column list in an INSERT statement and the SET 
        clauses of an UPDATE statement.  The keys of the parameter dictionary can
        either be the string names of columns or actual sqlalchemy.schema.Column objects."""
        self.engine = engine
        self.parameters = parameters
        self.statement = statement