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fix date parsing

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This commit is contained in:
ggman12
2026-02-15 14:55:32 -05:00
parent fde8ef029c
commit 4e81dde201
1 changed files with 9 additions and 11 deletions
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src/adsb/combine_chunks_to_csv.py
+9 -11
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@@ -104,18 +104,16 @@ def download_and_merge_base_release(compressed_df: pl.DataFrame) -> tuple[pl.Dat
base_df = pl.read_csv(base_path) base_df = pl.read_csv(base_path)
print(f"Base release has {len(base_df)} records") print(f"Base release has {len(base_df)} records")
# Parse time column as datetime
base_df = base_df.with_columns(
pl.col('time').str.to_datetime(time_unit='ms', time_zone='UTC')
)
# Extract earliest date from base release # Extract earliest date from base release
earliest_date = None earliest_timestamp = base_df['time'].min()
if 'time' in base_df.columns and len(base_df) > 0: earliest_dt = datetime.fromisoformat(str(earliest_timestamp).replace('Z', '+00:00'))
try: earliest_date = earliest_dt.strftime('%Y-%m-%d')
earliest_timestamp = base_df['time'].min() print(f"Earliest date in base release: {earliest_date}")
if earliest_timestamp:
# Parse timestamp and extract date
earliest_dt = datetime.fromisoformat(str(earliest_timestamp).replace('Z', '+00:00'))
earliest_date = earliest_dt.strftime('%Y-%m-%d')
print(f"Earliest date in base release: {earliest_date}")
except Exception as e:
print(f"Could not extract earliest date from base release: {e}")
# Ensure columns match # Ensure columns match
base_cols = set(base_df.columns) base_cols = set(base_df.columns)