setup
CREATE TABLE t2 (i INT PRIMARY KEY);
CREATE TABLE t1 (i INT PRIMARY KEY);
----

build
ALTER TABLE t1 ADD FOREIGN KEY (i) REFERENCES t2(i);
----
- [[IndexData:{DescID: 105, IndexID: 1}, PUBLIC], PUBLIC]
  {indexId: 1, tableId: 105}
- [[TableData:{DescID: 105, ReferencedDescID: 100}, PUBLIC], PUBLIC]
  {databaseId: 100, tableId: 105}
- [[ForeignKeyConstraint:{DescID: 105, IndexID: 0, ConstraintID: 2, ReferencedColumnIDs: [1], ReferencedDescID: 104}, PUBLIC], ABSENT]
  {columnIds: [1], constraintId: 2, referencedColumnIds: [1], referencedTableId: 104, tableId: 105}
- [[ConstraintWithoutIndexName:{DescID: 105, Name: t1_i_fkey, ConstraintID: 2}, PUBLIC], ABSENT]
  {constraintId: 2, name: t1_i_fkey, tableId: 105}
