42b08eb623
Bug fixes only. - Fixed bug in Session.merge() where an internal check for a target object in the identity map could lead to an error. - Fixed bug where an undefer_group() option would not be recognized. - Fixed race condition in ORM identity map. - Fixed bug in Session.merge() where objects in a collection that had the primary key attribute set to None for a key that is typically autoincrementing would be considered to be a database-persisted key for part of the internal deduplication process. - An InvalidRequestError is raised when a synonym() is used against an attribute that is not against a MapperProperty. - Altered the range specification for window functions to allow for two of the same PRECEDING or FOLLOWING keywords in a range by allowing for the left side of the range to be positive and for the right to be negative. |
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