I wonder if Thingsboard can work with MySQL?
I tried to modify the PostgreSQL DAO Configuration in thingsboard.yml file, but it doesnt work. The installation fail.

```
spring:
  data:
    jpa:
      repositories:
        enabled: "true"
  jpa:
    hibernate:
      ddl-auto: "validate"
    database-platform: "${SPRING_JPA_DATABASE_PLATFORM:org.hibernate.dialect.MySQLDialect}"
  datasource:
    driverClassName: "${SPRING_DRIVER_CLASS_NAME:org.mysql.jdbc.Driver}"
    url: "${SPRING_DATASOURCE_URL:jdbc:mysql://localhost/thingsboard}"
    username: "${SPRING_DATASOURCE_USERNAME:root}"
    password: "${SPRING_DATASOURCE_PASSWORD:pw}"

```