Constant SOLUTION

pub const SOLUTION: &str = "CREATE TABLE IF NOT EXISTS solution (\n    id INTEGER PRIMARY KEY,\n    solution_set_id INTEGER NOT NULL,\n    solution_index INTEGER NOT NULL,\n    contract_addr BLOB NOT NULL,\n    predicate_addr BLOB NOT NULL,\n    FOREIGN KEY (solution_set_id) REFERENCES solution_set (id)\n    UNIQUE (solution_set_id, solution_index)\n);\n";

CREATE TABLE IF NOT EXISTS solution (
    id INTEGER PRIMARY KEY,
    solution_set_id INTEGER NOT NULL,
    solution_index INTEGER NOT NULL,
    contract_addr BLOB NOT NULL,
    predicate_addr BLOB NOT NULL,
    FOREIGN KEY (solution_set_id) REFERENCES solution_set (id)
    UNIQUE (solution_set_id, solution_index)
);