diff options
Diffstat (limited to 'lib/sqlalchemy/engine/base.py')
| -rw-r--r-- | lib/sqlalchemy/engine/base.py | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py index e348b19ee..e4ff22746 100644 --- a/lib/sqlalchemy/engine/base.py +++ b/lib/sqlalchemy/engine/base.py @@ -16,11 +16,14 @@ class ConnectionProvider(object): raise NotImplementedError() class Dialect(sql.AbstractDialect): - """Adds behavior to the execution of queries to provide - support for column defaults, differences between paramstyles, quirks between post-execution behavior, - and a general consistentization of the behavior of various DBAPIs. + """Defines the behavior of a specific database/DBAPI. + + Any aspect of metadata defintion, SQL query generation, execution, result-set handling, + or anything else which varies between databases is defined under the general category of + the Dialect. The Dialect acts as a factory for other database-specific object implementations + including ExecutionContext, Compiled, DefaultGenerator, and TypeEngine. - The Dialect should also implement the following two attributes: + All Dialects implement the following attributes: positional - True if the paramstyle for this Dialect is positional |