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🎨 Use upsert approach to workaround #316 #321

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Merged
akrherz merged 1 commit into from
Mar 4, 2026
Merged

🎨 Use upsert approach to workaround #316 #321

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31 changes: 27 additions & 4 deletions src/pywwa/workflows/shef.py
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Original file line number Diff line number Diff line change
Expand Up @@ -275,11 +275,34 @@ def save_current() -> int:
LOG.info("Got varname of '%s' somehow? %s", varname, mydict)
continue

# database unique on
# (station, physical_code, duration, source, type, extremum,
# probability, depth, qualifier, unit_convention)
d2 = CTX["ACCESSDB"].runOperation(
"INSERT into current_shef(station, valid, physical_code, "
"duration, source, type, extremum, probability, value, depth, "
"dv_interval, unit_convention, qualifier, product_id) "
"values (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)",
"""
INSERT into current_shef(station, valid, physical_code,
duration, source, type, extremum, probability, value, depth,
dv_interval, unit_convention, qualifier, product_id)
values (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)
ON CONFLICT (station, physical_code, duration, source, type, extremum,
probability, depth, qualifier, unit_convention) do update
set
valid = EXCLUDED.valid, value = EXCLUDED.value,
product_id = EXCLUDED.product_id, dv_interval = EXCLUDED.dv_interval
where
current_shef.station = EXCLUDED.station and
current_shef.physical_code = EXCLUDED.physical_code and
current_shef.duration = EXCLUDED.duration and
current_shef.source = EXCLUDED.source and
current_shef.type = EXCLUDED.type and
current_shef.extremum = EXCLUDED.extremum and
current_shef.probability is not distinct from EXCLUDED.probability and
current_shef.depth is not distinct from EXCLUDED.depth and
current_shef.qualifier is not distinct from EXCLUDED.qualifier and
current_shef.unit_convention is not distinct from EXCLUDED.unit_convention
and current_shef.valid <= EXCLUDED.valid

""",
(
sid,
mydict["valid"],
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