not need to use restore func

Author: hasa1K

sqle/driver/mysql/rollback.go

@@ -11,7 +11,6 @@ import (
 	"github.com/actiontech/sqle/sqle/errors"
 
 	"github.com/pingcap/parser/ast"
-	"github.com/pingcap/parser/format"
 	_model "github.com/pingcap/parser/model"
 	parserMysql "github.com/pingcap/parser/mysql"
 )
@@ -627,7 +626,7 @@ func (i *MysqlDriverImpl) generateUpdateRollbackSql(stmt *ast.UpdateStmt) (strin
 					colChanged = true
 					if isPk {
 						isPkChanged = true
-						pkValue = restore(l.Expr)
+						pkValue = util.ExprFormat(l.Expr)
 					}
 				}
 			}
@@ -661,18 +660,6 @@ func (i *MysqlDriverImpl) generateUpdateRollbackSql(stmt *ast.UpdateStmt) (strin
 	return rollbackSql, "", nil
 }
 
-// 还原抽象语法树节点至SQL
-func restore(node ast.Node) (sql string) {
-	var buf strings.Builder
-	rc := format.NewRestoreCtx(format.DefaultRestoreFlags, &buf)
-
-	if err := node.Restore(rc); err != nil {
-		return
-	}
-	sql = buf.String()
-	return
-}
-
 // getRecords select all data which will be update or delete.
 func (i *MysqlDriverImpl) getRecords(tableName *ast.TableName, tableAlias string, where ast.ExprNode,
 	order *ast.OrderByClause, limit int64) ([]map[string]sql.NullString, error) {