message: pass PG vars to the workers that build the ethereum index
diff: @@ -60,7 +60,14 @@ try {
  `--end=${workerEndBlock}`,
  `--jobName=#${workerIndex}`,
  `--progressFrequency=${progressFrequency}`
  - ]);
  + ],{
  + env: {
  + PGHOST: process.env.PGHOST,
  + PGPORT: process.env.PGPORT,
  + PGUSER: process.env.PGUSER,
  + PGPASSWORD: process.env.PGPASSWORD
  + }
  + });
  workers[`worker${workerIndex}`] = worker;
  worker.on('exit', code => {
  