Madhan Neethiraj created ATLAS-3056:
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Summary: update rdbms types to remove use of ownedRef/inverseRef
constraints for relationships
Key: ATLAS-3056
URL: https://issues.apache.org/jira/browse/ATLAS-3056
Project: Atlas
Issue Type: Improvement
Components: atlas-core
Reporter: Madhan Neethiraj
Assignee: Madhan Neethiraj
RDBMS types use following attributes, with ownedRef/inverseRef constraints, to
create relationships between entity-types:
- rdbms_instance.database, rdbms_db.instance
- rdbms_db.tables, rdbms_table.db
- rdbms_table.columns, rdbms_column.table
- rdbms_table.indexes, rdbms_index.table
- rdbms_table.foreign_keys, rdbms_foreign_key.table
These attributes are not necessary, as corresponding relationship-types
(already present in the model) will automatically inject the same attributes as
relationship-attributes.
Above change has several benefits, including:
- improved performance, due to use of only one edge between two related
entities (compare this to 2 edges when ownedRef/inverseRef constraints are used)
- simper to update a container entity, as there is not need to provide all
contained entities; same for contained entities as well
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