# 3.22.0.txt

Path: | doc/release_notes/3.22.0.txt
Last Update: | Wed Mar 14 21:23:05 +0000 2012

# New Features

- Support COLLATE in column definitions. At least MySQL and Microsoft SQL Server support them, and PostgreSQL 9.1 should as well.
- When connecting to Microsoft SQL Server, you can use the mssql_unicode_strings accessor to turn of the default usage of unicode strings (N’’) and use regular strings (’’). This can improve performance, but changes the behavior. It‘s set to true by default for backwards compatibility. You can change it at both the dataset and database level:

        DB.mssql_unicode_strings = false # default for datasets
        dataset.mssql_unicode_strings = false # just this dataset

- In the oracle adapter, if Sequel.application_timezone is :utc, set the timezone for the connection to use the 00:00 timezone.

# Other Improvements

- In the single_table_inheritance plugin, correctly handle a multi-level class hierarchy so that loading instances from a middle level of the hierarchy can return instances of subclasses.
- Don‘t use a schema when creating a temporary table, even if default_schema is set.
- Fix the migrator when a default_schema is used.
- In the ado adapter, assume a connection to SQL Server if the :conn_string is given and doesn‘t indicate Access/Jet.
- Fix fetching rows in the tinytds adapter when the identifier_output_method is nil.
- The tinytds adapter now checks for disconnect errors, but it might not be reliable until the next release of tiny_tds.
- The odbc adapter now handles ODBC::Time instances correctly.

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