rename Symbol field to Market

bbgo/parser.go

@@ -90,7 +90,7 @@ func (e *ExecutionReportEvent) Trade() (*Trade, error) {
 	tt := time.Unix(0, e.TransactionTime/1000000)
 	return &Trade{
 		ID:          e.TradeID,
-		Symbol:      e.Symbol,
+		Market:      e.Symbol,
 		Price:       MustParseFloat(e.LastExecutedPrice),
 		Volume:      MustParseFloat(e.LastExecutedQuantity),
 		IsBuyer:     e.Side == "BUY",

bbgo/trade.go

@@ -9,13 +9,13 @@ import (
 )
 
 type Trade struct {
-	ID      int64
-	Price   float64
-	Volume  float64
-	IsBuyer bool
-	IsMaker bool
-	Time    time.Time
-	Symbol string
+	ID          int64
+	Price       float64
+	Volume      float64
+	IsBuyer     bool
+	IsMaker     bool
+	Time        time.Time
+	Market      string
 	Fee         float64
 	FeeCurrency string
 }