rel_2_0_45

🐛 Bug Fixes

• Fixed AttributeError when calling Mapper.add_property() inside early mapper event hooks by initializing internal property collections earlier.
• Fixed dataclass transformation failure on Python 3.14 when a MappedAsDataclass class referenced a relationship to a class defined only in a TYPE_CHECKING block, handling PEP 649 deferred annotations.
• Corrected short_selects example cache usage to allow proper performance comparison.
• Improved ClauseElement.params() handling of bound parameters; full fix deferred to 2.1.
• Fixed NotImplementedError when using ColumnOperators.in_() with a nested CompoundSelect as the first argument by updating _scalar_type() handling.
• Fixed typing for Select.with_for_update().of to accept lists of ORM entities and other FROM clauses.
• Fixed typing for coalesce() to return correct type when nullable arguments are provided.
• Fixed rendering order of PostgreSQL dialect options (postgresql_include) on PrimaryKeyConstraint and UniqueConstraint when combined with deferrable options.
• Fixed engine_insertmanyvalues SQL generation for explicit sequences with nextval() to ensure correct invocation order.
• Improved SQLite reflection of CHECK constraints to correctly handle table names containing 'CHECK' or 'CONSTRAINT', all quoting styles, and parentheses within string literals.
• Fixed SQLite reflection of constraint names with uppercase letters or characters requiring quoting by updating regex parsing.