Switch from JsonStringType to JsonBinaryType when the project uses both MySQL and PostgreSQL

Question

I have a problem with column json when it's necessary to switching from PostgreSQL to MariaDB/MySql.
I use Spring Boot + JPA + Hibernate + hibernate-types-52.
The table i want to map is like this:

CREATE TABLE atable(
 ...
 acolumn JSON,
 ... 
);

Ok it works for PostgreSQL and MariaDB/MySql.
The problem is when i want to deploy an application that switch easly from one to another because the correct hibernate-types-52 implementation for PostgreSQL and MySQL/MariaDB are different

This works on MySQL/MariaDB

@Entity
@Table(name = "atable")
@TypeDef(name = "json", typeClass = JsonStringType.class)
  public class Atable {
  ...
  @Type(type = "json")
  @Column(name = "acolumn", columnDefinition = "json")
  private JsonNode acolumn;
  ...
}

This works on PosgreSQL

@Entity
@Table(name = "atable")
@TypeDef(name = "json", typeClass = JsonBinaryType.class)
public class Atable {
  ...
  @Type(type = "json")
  @Column(name = "acolumn", columnDefinition = "json")
  private JsonNode acolumn;
  ...
}

Any kind of solutions to switch from JsonBinaryType to JsonStringType (or any other solution to solve this) is appreciated.

Answer 1

Starting with the 2.11 version of the Hibernate Types project, you can just use the JsonType, which works with PostgreSQL, MySQL, Oracle, SQL Server, or H2.

So, use JsonType instead of JsonBinaryType or JsonStringType

@Entity
@Table(name = "atable")
@TypeDef(name = "json", typeClass = JsonType.class)
public class Atable {

  @Type(type = "json")
  @Column(name = "acolumn", columnDefinition = "json")
  private JsonNode acolumn;

}

That's it!