CREATE INDEX "offers_group_winner_expr_idx" ON "router_v1.13"."offers" (
  "group_chain_id",
  "group_maker",
  "group_group",
  "obligation_id",
  "buy",
  (CASE WHEN "buy" THEN -"tick" ELSE "tick" END),
  "block_number",
  "hash"
);
