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refactor: Optimizing Excel header fields with too long prompts #1364 #1366

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Merged
XiaJunjie2020 merged 1 commit into from
Sep 14, 2026
Merged

refactor: Optimizing Excel header fields with too long prompts #1364 #1366

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13 changes: 12 additions & 1 deletion backend/apps/datasource/api/datasource.py
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Original file line number Diff line number Diff line change
Expand Up @@ -588,6 +588,17 @@ def inner():
except Exception as e:
raise HTTPException(500, f"{trans('i18n_ds_upload_error')}: {str(e)}")

max_identifier_len = 63
for col in df.columns:
col_bytes = str(col).encode('utf-8')
if len(col_bytes) > max_identifier_len:
raise HTTPException(
400,
f"{trans('i18n_ds_upload_error')}: "
f"Sheet [{sheet_name}] column name '{col}' exceeds "
f"{max_identifier_len} bytes (actual: {len(col_bytes)} bytes)"
)

conn = engine.raw_connection()
cursor = conn.cursor()
try:
Expand All @@ -598,7 +609,7 @@ def inner():
index=False
)
output = StringIO()
df.to_csv(output, sep='\t', header=False, index=False)
df.to_csv(output, sep='\t', header=False, index=False, na_rep='\\N')

query = sql.SQL("COPY {} FROM STDIN WITH CSV DELIMITER E'\t'").format(
sql.Identifier(table_name)
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