DOCUMENT TOTAL SUM UPDATE SQL

UPDATE_DOCUMENT_TOTAL_SUM.SQL

UPDATE documents set document_total_sum = tmp_sel.summa FROM
(SELECT documents.document_id, cast(sum(vat_total_sum) as numeric(20,2)) as summa from documents LEFT JOIN value_params vp on documents.document_id = vp.document_id
LEFT JOIN goods g on vp.value_param_id = g.value_param_id
WHERE param_id = '78624016-1195-4301-8576-cfabead6c9c9'  group by documents.document_id) as tmp_sel
WHERE documents.document_id = tmp_sel.document_id;