Constant POSTGRES_SCHEMA 

pub const POSTGRES_SCHEMA: &str = "\
CREATE TABLE IF NOT EXISTS prolly_nodes (
  cid bytea PRIMARY KEY,
  node bytea NOT NULL
);
CREATE TABLE IF NOT EXISTS prolly_hints (
  namespace bytea NOT NULL,
  key bytea NOT NULL,
  value bytea NOT NULL,
  PRIMARY KEY(namespace, key)
);
CREATE TABLE IF NOT EXISTS prolly_roots (
  name bytea PRIMARY KEY,
  manifest bytea NOT NULL
);";

Minimal table layout for PostgreSQL implementations.