cmake __HAS_ORDERED_AGGREGATES__ examples

madlib/archived_madlib src/ports/greenplum/cmake/GreenplumUtils.cmake :5 

list(APPEND ${OUT_FEATURES} __HAS_ORDERED_AGGREGATES__)

madlib/archived_madlib src/ports/hawq/cmake/HAWQUtils.cmake :4 

list(APPEND ${OUT_FEATURES} __HAS_ORDERED_AGGREGATES__)

madlib/archived_madlib src/ports/postgres/cmake/PostgreSQLUtils.cmake :5 

list(APPEND ${OUT_FEATURES} __HAS_ORDERED_AGGREGATES__)