Как создать SQL для извлечения текстовой информации, которая является BLOB-объектом в базе данных INFORMIX

Question

BLOB-объекты не допускаются в «отдельном предложении», и когда я удаляю разделенные, ошибка показывает, что BLOB-объекты недопустимы в предложении union. Моя цель - извлечь примечания по настройке из столбца not_note_text.

select distinct-- select the docketed entries
        schedasc.as_lead_caseid as as_lead_caseid, not_caseid, not_seq, not_note_text 
        case when not_docnum = 0 then 'C'
        else 'S' end note_type, not_docnum
        from u_schedule sched, u_asccase schedasc, u_person schedpr, cal2004:notes, u_dktentry, cal2004:permissions
        where sched.sd_dtset >= '$startdate' and sched.sd_dtset <= '$enddate'
        and sched.sd_caseid = schedasc.as_caseid
        and schedasc.as_type != 'rel'
        and schedasc.as_group is NULL
        --and sched.sd_type not like '%zz%'
        and sched.sd_dtsatis is null
        and sched.sd_date_term is null
        and sched.sd_judge_prid = pr_prid
        and schedpr.pr_ao_code = '$judgeaocode'
        --Start Notes Mix
        and not_caseid = schedasc.as_caseid
        and (not_docnum = de_document_num or not_docnum = 0)
        and de_caseid = not_caseid
        and de_seqno = sd_deseqno
        and per_user = not_person
        and per_aocode = 'AALL'
        $notetype_line
        and not_aocode = '$judgeaocode'
        union
        select distinct-- select the docketed entries
        not_caseid as as_lead_caseid, not_caseid, not_seq, not_note_text,
        case when not_docnum = 0 then 'C'
        else 'S' end note_type, not_docnum
        from u_schedule sched, u_person schedpr, cal2004:notes, u_dktentry, cal2004:permissions, u_case
        where sched.sd_dtset >= '$startdate' and sched.sd_dtset <= '$enddate'
        --and sched.sd_caseid = schedasc.as_lead_caseid
        --and schedasc.as_type != 'rel'
        --and schedasc.as_group is NULL
        --and sched.sd_type not like '%zz%'
        and sched.sd_dtsatis is null
        and sched.sd_date_term is null
        and sched.sd_judge_prid = pr_prid
        and schedpr.pr_ao_code = '$judgeaocode'
        and cs_caseid = not_caseid
        and cs_type = 'cv'
        --Start Notes Mix
        and not_caseid = sched.sd_caseid
        and (not_docnum = de_document_num or not_docnum = 0)
        and de_caseid = not_caseid
        and de_seqno = sd_deseqno
        and per_user = not_person
        and per_aocode = 'AALL'
        $notetype_line
        and not_aocode = '$judgeaocode'
        order by as_lead_caseid, not_caseid, note_type desc, not_seq
        " 2>/dev/null |&

while IFS="|" read -p as_lead_caseid not_caseid not_seq not_note note_type not_docnum


do