This data as json, CSV (advanced)
| pk ▼ | f1 | f2 | f3 | 
|---|---|---|---|
| 1 | hello 1 | world 2 | hello 1 | 
JSON shape: default, array, newline-delimited, object
CREATE TABLE "complex_foreign_keys" (
  pk varchar(30) primary key,
  f1 text,
  f2 text,
  f3 text,
  FOREIGN KEY ("f1") REFERENCES [simple_primary_key](id),
  FOREIGN KEY ("f2") REFERENCES [simple_primary_key](id),
  FOREIGN KEY ("f3") REFERENCES [simple_primary_key](id)
);