allow alternative tag name

schema.go

@@ -54,19 +54,29 @@ func inferFields(record interface{}) map[string]int {
 }
 
 func inferFieldName(sf reflect.StructField) string {
-	if tag := sf.Tag.Get("db"); tag != "" {
-		name := strings.Split(tag, ",")[0]
+	if name, skip := inferFieldNameFromTag(sf, "ch"); name != "" || skip {
+		return name
+	}
 
-		if name == "-" {
-			return ""
-		}
+	if name, skip := inferFieldNameFromTag(sf, "db"); name != "" || skip {
+		return name
+	}
 
-		if name != "" {
-			return name
+	return snakecase.SnakeCase(sf.Name)
+}
+
+func inferFieldNameFromTag(sf reflect.StructField, tag string) (string, bool) {
+	var name string
+
+	if v := sf.Tag.Get(tag); v != "" {
+		name = strings.Split(v, ",")[0]
+
+		if name == "-" {
+			return "", true
 		}
 	}
 
-	return snakecase.SnakeCase(sf.Name)
+	return name, false
 }
 
 func inferFieldMapping(record interface{}) map[string]int {

schema_test.go

@@ -40,13 +40,19 @@ func TestInferFields(t *testing.T) {
 			C []byte     `db:",primary"`
 			D bool       `db:"D"`
 			E []*float64 `db:"-"`
+			F int        `db:"not_f" ch:"f"`
+			G int        `db:"-" ch:"g"`
+			H bool       `ch:"h"`
 		}{}
 		rt       = reflectTypePtr(record)
 		expected = map[string]int{
 			"a": 0,
 			"b": 1,
 			"c": 2,
 			"D": 3,
+			"f": 4,
+			"g": 5,
+			"h": 6,
 		}
 	)