EDIT

import eu.etaxonomy.cdm.database.update.MnTableCreator;

        //#8142 add plural to representations

        stepName = "Add plural to representations";

        tableName = "Representation";

        newColumnName = "plural";

        step = ColumnAdder.NewStringInstance(stepName, tableName, newColumnName, INCLUDE_AUDIT);

        stepList.add(step);

        //#8017 add type designation sources

        stepName = "Add plural type designation sources";

        String firstTableName = "TypeDesignationBase";

        String secondTableName = "OriginalSourceBase";

        step = MnTableCreator.NewMnInstance(stepName, firstTableName, null, secondTableName, null, "sources", INCLUDE_AUDIT, !IS_LIST, IS_1_TO_M);

        stepList.add(step);