Implement relational schema parsing, ForeignKeyRelation, and DAG topological sort (Kahn's). - #137
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Implement relational schema parsing, ForeignKeyRelation, and DAG topological sort (Kahn's).#137copybara-service[bot] wants to merge 1 commit into
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…logical sort (Kahn's). - Implements `ForeignKeyRelation` dataclass with group capacity bound (`max_children_per_parent >= 1`) validation. - Implements `topological_sort_hierarchy` using a tree-constrained Kahn's algorithm to validate DAG hierarchies (enforcing in-degree <= 1, cycle detection, and root privacy unit identification) and compute topological synthesis depth levels. - Implements `from_dict` and `from_yaml_file` to parse multi-table domain schemas and foreign key constraints into typed `dpsynth.domain.AttributeType` specifications. - Adds comprehensive unit tests in `domain_test.py` covering linear chains, branching hierarchies, forests, cycle detection, multi-parent violations, and YAML roundtrips. PiperOrigin-RevId: 965535084
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Implement relational schema parsing, ForeignKeyRelation, and DAG topological sort (Kahn's).
ForeignKeyRelationdataclass with group capacity bound (max_children_per_parent >= 1) validation.topological_sort_hierarchyusing a tree-constrained Kahn's algorithm to validate DAG hierarchies (enforcing in-degree <= 1, cycle detection, and root privacy unit identification) and compute topological synthesis depth levels.from_dictandfrom_yaml_fileto parse multi-table domain schemas and foreign key constraints into typeddpsynth.domain.AttributeTypespecifications.domain_test.pycovering linear chains, branching hierarchies, forests, cycle detection, multi-parent violations, and YAML roundtrips.