FieldE1 string `gorm:"uniqueIndex:uniq_field_e1_e2"` // mul uniqueIndex
		FieldE2 string `gorm:"uniqueIndex:uniq_field_e1_e2"`

		FieldF1 string `gorm:"uniqueIndex:uniq_field_f1_f2;index"` // mul uniqueIndex and index
		FieldF2 string `gorm:"uniqueIndex:uniq_field_f1_f2;"`

		FieldG string `gorm:"unique;uniqueIndex"` // unique and uniqueIndex

		db.Logger = db.Logger.LogMode(logger.Silent)
	}

	type Object1 struct {
		ID uint
	}
	type Object2 struct {
		ID     uint
		Field1 int `gorm:"type:int8"`
	}
	type Object3 struct {
		ID     uint
		Field1 int `gorm:"type:int4"`
	}
	type Object4 struct {
		ID     uint
		Field2 int
	}
	db.Migrator().DropTable("objects")

As a consequence, redeclaration can only appear in a multi-variable short declaration.
Redeclaration does not introduce a new variable; it just assigns a new value to the original.
</p>

<pre>
field1, offset := nextField(str, 0)
field2, offset := nextField(str, offset)  // redeclares offset
a, a := 1, 2                              // illegal: double declaration of a or no new variable if a was declared elsewhere
</pre>

The non-blank variable names on the left side of <code>:=</code>
must be <a href="#Uniqueness_of_identifiers">unique</a>.
</p>

<pre>
field1, offset := nextField(str, 0)
field2, offset := nextField(str, offset)  // redeclares offset
x, y, x := 1, 2, 3                        // illegal: x repeated on left side of :=
</pre>

<p>