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fix: prevent CA multiplication in analytics by using DISTINCT ON per article

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artfou1 has multiple rows per article (multi-supplier), causing each mvtart
movement to be counted N times in the JOIN. Use a CTE with DISTINCT ON
(art_no_id) ORDER BY no_id to pick one canonical supplier per article,
matching the same pattern used in pgGetArticlesByFournisseur.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
MichaelandClaude Sonnet 4.6 committed 2026-03-31 10:36:19 +02:00
1 parent 7e8b50e143
commit b420dc2a2b
1 file changed
+12 -6
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src/lib/pg-ff-client.ts
+12 -6
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@@ -645,21 +645,27 @@ export async function pgGetCaByFournisseur(
moisN1: string
): Promise<CaByFournisseurRow[]> {
const result = await pgNoParallel(sql`
WITH art_fou AS (
-- Un seul fournisseur par article (le plus ancien no_id = fournisseur principal)
SELECT DISTINCT ON (art_no_id) art_no_id, code AS codefou
FROM artfou1
ORDER BY art_no_id, no_id
)
SELECT
af.code AS code,
af.codefou AS code,
MAX(f.raisonsociale)::text AS nom,
m.site,
TO_CHAR(m.datmvt, 'YYYY-MM') AS mois,
SUM(-m.mntmvtttc)::float AS ca_ttc
FROM mvtart m
JOIN articles a ON a.no_id = m.artnoid
JOIN artfou1 af ON af.art_no_id = a.no_id
JOIN fouadr1 f ON f.code = af.code AND f.sit_code = '000'
JOIN articles a ON a.no_id = m.artnoid
JOIN art_fou af ON af.art_no_id = a.no_id
JOIN fouadr1 f ON f.code = af.codefou AND f.sit_code = '000'
WHERE (TO_CHAR(m.datmvt, 'YYYY-MM') = ${mois} OR TO_CHAR(m.datmvt, 'YYYY-MM') = ${moisN1})
AND m.site IN ('292', '579')
AND m.genremvt = 3
GROUP BY af.code, m.site, TO_CHAR(m.datmvt, 'YYYY-MM')
ORDER BY af.code, m.site, TO_CHAR(m.datmvt, 'YYYY-MM')
GROUP BY af.codefou, m.site, TO_CHAR(m.datmvt, 'YYYY-MM')
ORDER BY af.codefou, m.site, TO_CHAR(m.datmvt, 'YYYY-MM')
`);
console.log(`[pg-ff] CaByFournisseur: ${result.rows.length} lignes pour ${mois}/${moisN1}`);