sql/mysql: fix binary with size

Author: calvin

internal/integration/mysql_test.go

@@ -186,7 +186,7 @@ func TestMySQL_AddColumns(t *testing.T) {
 			&schema.Column{Name: "b", Type: &schema.ColumnType{Raw: "mediumblob", Type: &schema.BinaryType{T: "mediumblob"}}},
 			&schema.Column{Name: "c", Type: &schema.ColumnType{Raw: "blob", Type: &schema.BinaryType{T: "blob"}}},
 			&schema.Column{Name: "d", Type: &schema.ColumnType{Raw: "longblob", Type: &schema.BinaryType{T: "longblob"}}},
-			&schema.Column{Name: "e", Type: &schema.ColumnType{Raw: "binary", Type: &schema.BinaryType{T: "binary"}}},
+			&schema.Column{Name: "e", Type: &schema.ColumnType{Raw: "binary(255)", Type: &schema.BinaryType{T: "binary(255)"}}},
 			&schema.Column{Name: "f", Type: &schema.ColumnType{Raw: "varbinary(255)", Type: &schema.BinaryType{T: "varbinary(255)"}}, Default: &schema.Literal{V: "foo"}},
 			&schema.Column{Name: "g", Type: &schema.ColumnType{Type: &schema.StringType{T: "varchar", Size: 255}}},
 			&schema.Column{Name: "h", Type: &schema.ColumnType{Raw: "varchar(255)", Type: &schema.StringType{T: "varchar(255)"}}},

internal/integration/tidb_test.go

@@ -169,7 +169,7 @@ func TestTiDB_AddColumns(t *testing.T) {
 			&schema.Column{Name: "b", Type: &schema.ColumnType{Raw: "mediumblob", Type: &schema.BinaryType{T: "mediumblob"}}},
 			&schema.Column{Name: "c", Type: &schema.ColumnType{Raw: "blob", Type: &schema.BinaryType{T: "blob"}}},
 			&schema.Column{Name: "d", Type: &schema.ColumnType{Raw: "longblob", Type: &schema.BinaryType{T: "longblob"}}},
-			&schema.Column{Name: "e", Type: &schema.ColumnType{Raw: "binary", Type: &schema.BinaryType{T: "binary"}}},
+			&schema.Column{Name: "e", Type: &schema.ColumnType{Raw: "binary(255)", Type: &schema.BinaryType{T: "binary(255)"}}},
 			&schema.Column{Name: "f", Type: &schema.ColumnType{Raw: "varbinary(255)", Type: &schema.BinaryType{T: "varbinary(255)"}}, Default: &schema.Literal{V: "foo"}},
 			&schema.Column{Name: "g", Type: &schema.ColumnType{Type: &schema.StringType{T: "varchar", Size: 255}}},
 			&schema.Column{Name: "h", Type: &schema.ColumnType{Raw: "varchar(255)", Type: &schema.StringType{T: "varchar(255)"}}},

sql/mysql/convert.go

@@ -28,10 +28,8 @@ func FormatType(t schema.Type) (string, error) {
 		}
 	case *schema.BinaryType:
 		f = strings.ToLower(t.T)
-		if f == TypeVarBinary {
-			// Zero is also a valid length.
-			f = fmt.Sprintf("%s(%d)", f, t.Size)
-		}
+	        // Zero is also a valid length.
+	        f = fmt.Sprintf("%s(%d)", f, t.Size)
 	case *schema.DecimalType:
 		if f = strings.ToLower(t.T); f != TypeDecimal && f != TypeNumeric {
 			return "", fmt.Errorf("mysql: unexpected decimal type: %q", t.T)