presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/metadata/MetadataDao.java/MetadataDao/dropColumn
class MetadataDao:    @SqlUpdate("DELETE FROM columns\n" +
            " WHERE table_id = :tableId\n" +
            "  AND column_id = :columnId")
    void dropColumn(
            @Bind("tableId") long tableId,
            @Bind("columnId") long column);