code: public String transformDDL(String ddl) {
          return transformQuery(ddl, dropTableIfExistsDdlTransformer,
                  varcharBytesDdlTransformer, varbinaryDdlTransformer,
                  tinyintDdlTransformer, assumeUniqueDdlTransformer);
      }
docs: For a SQL DDL statement, replace (VoltDB) keywords not supported by
  PostgreSQL with other, similar terms.