1. Module layout. sql.py and related move into a package called "sql".

2. compiler names changed to be less verbose, unused classes removed.
3. Methods on Dialect which return compilers, schema generators, identifier preparers
have changed to direct class references, typically on the Dialect class itself
or optionally as attributes on an individual Dialect instance if conditional behavior is needed.
This takes away the need for Dialect subclasses to know how to instantiate these
objects, and also reduces method overhead by one call for each one.
4. as a result of 3., some internal signatures have changed for things like compiler() (now statement_compiler()), preparer(), etc., mostly in that the dialect needs to be passed explicitly as the first argument (since they are just class references now).  The compiler() method on Engine and Connection is now also named statement_compiler(), but as before does not take the dialect as an argument.

5. changed _process_row function on RowProxy to be a class reference, cuts out 50K method calls from insertspeed.py

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/sqlalchemy/orm/sync.py b/lib/sqlalchemy/orm/sync.py
index cf48202b0..49661a95e 100644
--- a/lib/sqlalchemy/orm/sync.py
+++ b/lib/sqlalchemy/orm/sync.py
@@ -10,9 +10,9 @@ clause that compares column values.
 """
 
 from sqlalchemy import sql, schema, exceptions
+from sqlalchemy.sql import visitors, operators
 from sqlalchemy import logging
 from sqlalchemy.orm import util as mapperutil
-import operator
 
 ONETOMANY = 0
 MANYTOONE = 1
@@ -43,7 +43,7 @@ class ClauseSynchronizer(object):
         def compile_binary(binary):
             """Assemble a SyncRule given a single binary condition."""
 
-            if binary.operator != operator.eq or not isinstance(binary.left, schema.Column) or not isinstance(binary.right, schema.Column):
+            if binary.operator != operators.eq or not isinstance(binary.left, schema.Column) or not isinstance(binary.right, schema.Column):
                 return
 
             source_column = None
@@ -144,7 +144,7 @@ class SyncRule(object):
 
 SyncRule.logger = logging.class_logger(SyncRule)
 
-class BinaryVisitor(sql.ClauseVisitor):
+class BinaryVisitor(visitors.ClauseVisitor):
     def __init__(self, func):
         self.func = func