Add ER diagram with FK introspection across all databases#201
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dcpatrick15 wants to merge 2 commits into
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Add ER diagram with FK introspection across all databases#201dcpatrick15 wants to merge 2 commits into
dcpatrick15 wants to merge 2 commits into
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Adds the ability to generate Unicode ER diagrams showing tables, columns (with PK/FK markers), and foreign key relationship lines. Accessible via S key on explorer tree nodes and space+d leader menu for a table picker modal. Includes FK introspection for PostgreSQL and SQLite providers.
Implements FK introspection for MySQL, MariaDB, MSSQL, Oracle, Firebird, DuckDB, Turso, Snowflake, Spanner, HANA, DB2, Teradata, Redshift, and MotherDuck. Each adapter queries the database's native metadata catalog to return ForeignKeyInfo objects used by the ER diagram feature. Includes 42 unit tests with mocked cursors and integration test coverage via BaseDatabaseTests. All 9 test fixtures updated with test_orders FK table.
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Summary
get_foreign_keys()) implemented for all 14 remaining database adaptersHow to use
dto open the ER diagram for that tableDto open the table picker, select tables withspace, confirm withenterhjkl, close withqScreenshots
Test plan
pytest tests/unit/test_foreign_keys.py -v(42 tests)pytest tests/ -v -k test_get_foreign_keys(8 databases verified locally with Docker)pytest tests/unit/test_diagram_layout.py -v