SELECT testhist_id AS id,
       wo_number || '-'  || wo_subnumber || '-' || testhist_product_id  AS  wo,
       testhist_testwith_version AS firmware_version,
       testhist_testwith_buildinfo_id AS firmware_build_id,
       MAX(CASE
               WHEN (char_name = 'M/S') AND charass_value LIKE 'MS%' THEN 'true'
               ELSE NULL
           END) AS multimodule,
       MAX(CASE
               WHEN (char_name = 'Series') THEN charass_value
               ELSE NULL
           END) AS product_type,
       MAX(CASE
               WHEN (char_name = 'Configuration-Product') THEN charass_value
               ELSE NULL
           END) AS product_config,
        to_char(testhist_timestamp, 'YYYY-MM-DD') AS date
FROM wo
         LEFT JOIN charass ON wo_id = charass_target_id
         JOIN char ON charass_char_id = char_id
         JOIN itemsite ON wo_itemsite_id = itemsite_id
         JOIN item ON itemsite.itemsite_item_id = item.item_id
         JOIN mpe.testhist ON wo_id = mpe.testhist.testhist_wo_id
WHERE char_name IN ('Series', 'M/S', 'Configuration-Product')
  AND testhist_testwith_item_number = '28207'
GROUP BY wo_number,
         wo_subnumber,
         testhist_testwith_version,
         testhist_id,
         testhist_product_id,
         testhist_testwith_buildinfo_id
ORDER By id DESC