- The generated index name also is based on

a "max index name length" attribute which is
separate from the "max identifier length" -
this to appease MySQL who has a max length
of 64 for index names, separate from their
overall max length of 255.  [ticket:1412]

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index 0724d1fb9..390094c7d 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -59,7 +59,18 @@ class DefaultDialect(base.Dialect):
     # end Py2K
 
     name = 'default'
+    
+    # length at which to truncate
+    # any identifier.
     max_identifier_length = 9999
+    
+    # length at which to truncate
+    # the name of an index.
+    # Usually None to indicate
+    # 'use max_identifier_length'.
+    # thanks to MySQL, sigh
+    max_index_name_length = None
+    
     supports_sane_rowcount = True
     supports_sane_multi_rowcount = True
     dbapi_type_map = {}