ALTER TABLE "SmsMessageRecord"
  ADD COLUMN "receiptRawStatus" TEXT;

ALTER TABLE "SmsReceiptRecord"
  ADD COLUMN "receiptKey" TEXT,
  ADD COLUMN "errorMessage" TEXT;

UPDATE "SmsReceiptRecord"
SET "receiptKey" = MD5(
  COALESCE("channelId", '') || E'\u0001' ||
  "gatewayMessageId" || E'\u0001' ||
  "receiptStatus" || E'\u0001' ||
  "rawStatus"
) || MD5("id");

ALTER TABLE "SmsReceiptRecord"
  ALTER COLUMN "receiptKey" SET NOT NULL;

CREATE UNIQUE INDEX "SmsReceiptRecord_receiptKey_key"
  ON "SmsReceiptRecord"("receiptKey");

CREATE INDEX "SmsSubmitRecord_channelId_gatewayMessageId_idx"
  ON "SmsSubmitRecord"("channelId", "gatewayMessageId");

CREATE INDEX "SmsReceiptRecord_channelId_gatewayMessageId_idx"
  ON "SmsReceiptRecord"("channelId", "gatewayMessageId");