SQL Cache store initiation fails on Sql type CHAR

When creating a cache as follows:

{
    "distributed-cache": {
      "mode": "SYNC",
      "encoding": {
        "key":

{           "media-type": "application/x-protostream"         }

,
        "value":

{           "media-type": "application/x-protostream"         }

      },
      "persistence": {
        "table-jdbc-store": {
          "shared": true,
          "segmented": false,
          "dialect": "POSTGRES",
          "table-name": "model",
          "connection-pool":

{             "connection-url": "jdbc:postgresql://postgresql:5432/rpi-store",             "driver": "org.postgresql.Driver",             "username": "user",             "password": "secret"           }

        }
      }
    }
  }

 

With the table:

create table model (

   id integer primary key,

   name char(20),

   model char(20),

   soc char(20),

   memory_mb integer,

   ethernet boolean,

   release_year integer

);

 

The cache creation fails with the error

Caused by: java.lang.IllegalArgumentException: SqlType not supported: 1