Add RowsColumnScanner support (Go 1.27+)

rows.go

@@ -22,9 +22,10 @@
 }
 
 type mysqlRows struct {
-	mc     *mysqlConn
-	rs     resultSet
-	finish func()
+	mc         *mysqlConn
+	rs         resultSet
+	finish     func()
+	currentRow []driver.Value // used by RowsColumnScanner (Go 1.27+)
 }
 
 type binaryRows struct {

rows_column_scanner.go

@@ -0,0 +1,56 @@
+// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
+//
+// Copyright 2025 The Go-MySQL-Driver Authors. All rights reserved.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at http://mozilla.org/MPL/2.0/.
+
+//go:build go1.27
+
+package mysql
+
+import (
+	"database/sql"
+	"database/sql/driver"
+	"fmt"
+	"io"
+)
+
+// NextRow implements driver.RowsColumnScanner.
+func (rows *binaryRows) NextRow() error {
+	if mc := rows.mc; mc != nil {
+		if err := mc.error(); err != nil {
+			return err
+		}
+		ncols := len(rows.rs.columns)
+		if len(rows.currentRow) != ncols {
+			rows.currentRow = make([]driver.Value, ncols)
+		}
+		return rows.readRow(rows.currentRow)
+	}
+	return io.EOF
+}
+
+// NextRow implements driver.RowsColumnScanner.
+func (rows *textRows) NextRow() error {
+	if mc := rows.mc; mc != nil {
+		if err := mc.error(); err != nil {
+			return err
+		}
+		ncols := len(rows.rs.columns)
+		if len(rows.currentRow) != ncols {
+			rows.currentRow = make([]driver.Value, ncols)
+		}
+		return rows.readRow(rows.currentRow)
+	}
+	return io.EOF
+}
+
+// ScanColumn implements driver.RowsColumnScanner.
+func (rows *mysqlRows) ScanColumn(scanCtx driver.ScanContext, i int, dest any) error {
+	if i < 0 || i >= len(rows.currentRow) {
+		return fmt.Errorf("mysql: column index %d out of range [0, %d)", i, len(rows.currentRow))
+	}
+	return sql.ConvertAssign(scanCtx, dest, rows.currentRow[i])
+}