8000 perf: Amélioration de la performance de la requête dans getLasDiscoveries by andriacap · Pull Request #455 · PnX-SI/GeoNature-atlas · GitHub
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perf: Amélioration de la performance de la requête dans getLasDiscoveries #455

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perf: Amélioration de la performance de la requête dans getLasDiscoveries #455

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15 changes: 9 additions & 6 deletions atlas/modeles/repositories/vmObservationsRepository.py
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Original file line number Diff line number Diff line change
Expand Up @@ -300,13 +300,16 @@ def genericStatMedias(connection, tab):

def getLastDiscoveries(connection):
sql="""
SELECT date(min(dateobs)), vo.cd_ref, vt.lb_nom, vt.nom_vern, m.id_media, m.chemin, m.url, vt.group2_inpn
FROM atlas.vm_observations vo
JOIN atlas.vm_taxref vt ON vo.cd_ref = vt.cd_nom
LEFT JOIN atlas.vm_medias m ON m.cd_ref=vo.cd_ref and m.id_type = :thisidtype
with t as (SELECT date(min(vo.dateobs)) date, vo.cd_ref
FROM atlas.vm_observations vo
GROUP BY vo.cd_ref
ORDER BY date desc)
select t.*, vt.lb_nom, vt.nom_vern, m.id_media, m.chemin, m.url, vt.group2_inpn
from t
JOIN atlas.vm_taxref vt ON t.cd_ref = vt.cd_nom
LEFT JOIN atlas.vm_medias m ON m.cd_ref=t.cd_ref and m.id_type = :thisidtype
WHERE id_rang='ES'
GROUP BY vo.cd_ref, vt.lb_nom, vt.nom_vern, m.id_media, m.chemin, m.url, vt.group2_inpn
ORDER BY min(dateobs) DESC
order by t.date desc
LIMIT 6
"""
req = connection.execute(text(sql), thisidtype=current_app.config["ATTR_MAIN_PHOTO"])
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