Query
CREATE TABLE "recipes_to_tools" (
recipe_id CHAR(32),
tool_id CHAR(32),
CONSTRAINT recipe_id_tool_id_key UNIQUE (recipe_id, tool_id),
FOREIGN KEY(recipe_id) REFERENCES recipes (id),
FOREIGN KEY(tool_id) REFERENCES tools (id)
)
CREATE TABLE "recipes_to_tools" (
recipe_id CHAR(32),
tool_id CHAR(32),
CONSTRAINT recipe_id_tool_id_key UNIQUE (recipe_id, tool_id),
FOREIGN KEY(recipe_id) REFERENCES recipes (id),
FOREIGN KEY(tool_id) REFERENCES tools (id)
)