Update transaction isolation level to ReadCommitted in MySQL implementation

ngoralski · ngoralski · commit 57093693716d · 2025-07-06T09:09:51.000+02:00
diff --git a/database/mysql/mysql.go b/database/mysql/mysql.go
@@ -356,7 +356,7 @@ func (m *Mysql) Run(migration io.Reader) error {
 }
 
 func (m *Mysql) SetVersion(version int, dirty bool) error {
-	tx, err := m.conn.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.LevelSerializable})
+	tx, err := m.conn.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.LevelReadCommitted})
 	if err != nil {
 		return &database.Error{OrigErr: err, Err: "transaction start failed"}
 	}

Original file line number	Diff line number	Diff line change
`@@ -356,7 +356,7 @@ func (m *Mysql) Run(migration io.Reader) error {`
`356`	`356`	`}`
`357`	`357`
`358`	`358`	`func (m *Mysql) SetVersion(version int, dirty bool) error {`
`359`		`- tx, err := m.conn.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.LevelSerializable})`
	`359`	`+ tx, err := m.conn.BeginTx(context.Background(), &sql.TxOptions{Isolation: sql.LevelReadCommitted})`
`360`	`360`	`if err != nil {`
`361`	`361`	`return &database.Error{OrigErr: err, Err: "transaction start failed"}`
`362`	`362`	`}`