diff --git a/go/logic/applier.go b/go/logic/applier.go
index 951addb..7e526b9 100644
--- a/go/logic/applier.go
+++ b/go/logic/applier.go
@@ -854,31 +854,32 @@ func (this *Applier) ApplyDMLEventQuery(dmlEvent *binlog.BinlogDMLEvent) error {
 		return err
 	}
 
-	// TODO The below is commented, and is in preparation for transactional writes on the ghost tables.
+	// TODO The below is in preparation for transactional writes on the ghost tables.
 	// Such writes would be, for example:
 	// - prepended with sql_mode setup
+	// - prepended with time zone setup
 	// - prepended with SET SQL_LOG_BIN=0
 	// - prepended with SET FK_CHECKS=0
 	// etc.
 	//
-	// Current known problem: https://github.com/golang/go/issues/9373 -- bitint unsigned values, not supported in database/sql
+	// a known problem: https://github.com/golang/go/issues/9373 -- bitint unsigned values, not supported in database/sql
+	// is solved by silently converting unsigned bigints to string values.
 	//
 
-	// err = func() error {
-	// 	tx, err := this.db.Begin()
-	// 	if err != nil {
-	// 		return err
-	// 	}
-	// 	if _, err := tx.Exec(query, args...); err != nil {
-	// 		return err
-	// 	}
-	// 	if err := tx.Commit(); err != nil {
-	// 		return err
-	// 	}
-	// 	return nil
-	// }()
+	err = func() error {
+		tx, err := this.db.Begin()
+		if err != nil {
+			return err
+		}
+		if _, err := tx.Exec(query, args...); err != nil {
+			return err
+		}
+		if err := tx.Commit(); err != nil {
+			return err
+		}
+		return nil
+	}()
 
-	_, err = sqlutils.Exec(this.db, query, args...)
 	if err == nil {
 		atomic.AddInt64(&this.migrationContext.TotalDMLEventsApplied, 1)
 	}
diff --git a/go/sql/builder.go b/go/sql/builder.go
index 6c2e4b2..7c670a9 100644
--- a/go/sql/builder.go
+++ b/go/sql/builder.go
@@ -47,7 +47,7 @@ func fixArgType(arg interface{}, isUnsigned bool) interface{} {
 		return uint32(i)
 	}
 	if i, ok := arg.(int64); ok {
-		return uint64(i)
+		return strconv.FormatUint(uint64(i), 10)
 	}
 	if i, ok := arg.(int); ok {
 		return uint(i)