The overpass_tennis extractor has written JSONL-only since it was added.
The dual-format UNION ALL was backwards-compat debt that broke the
transform once no courts.json.gz files exist on the server:
IO Error: No files found that match the pattern
"data/landing/overpass_tennis/*/*/courts.json.gz"
Remove blob_elements CTE and the UNION ALL. Only read JSONL.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
6cf98f44d4