code: function sqlTypeCast(type, attrName) {
      type = type && type.toLowerCase();
  
      switch (type) {
          case 'string':
              return 'VARCHAR2(255)';
  
          case 'text':
          case 'array':
          case 'json':
              return 'VARCHAR2(255)';
  
          case 'boolean':
              return 'NUMBER(1) CHECK("' + attrName + '" IN (0,1))';
  
          case 'int':
          case 'integer':
              return 'NUMBER';
  
          case 'float':
          case 'double':
              return 'FLOAT';
  
          case 'date':
              return 'DATE';
  
          case 'datetime':
              return 'TIMESTAMP';
  
          case 'binary':
              return 'BLOB';
  
          default:
              console.error("Unregistered type given: " + type);
              return "TEXT";
      }
  }
docs: Cast waterline types into SQL data types