code: private TextElement generateVersionSetEle(boolean selective) {
          if (this.customizedNextVersion) {
              return new TextElement(
                      (selective ? "" : "set ")
                              + MyBatis3FormattingUtilities.getEscapedColumnName(this.versionColumn)
                              + " = "
                              + MyBatis3FormattingUtilities.getParameterClause(this.versionColumn, "record.")
                              + ","
              );
          } else {
              return new TextElement(
                      (selective ? "" : "set ")
                              + MyBatis3FormattingUtilities.getEscapedColumnName(this.versionColumn)
                              + " = "
                              + MyBatis3FormattingUtilities.getEscapedColumnName(this.versionColumn)
                              + " + 1,"
              );
          }
      }
docs: 生成版本号set节点
  @param selective
  @return