t20 ├── data │   ├── 00000-0-9c7ff22e-a767-4b85-91ec-a2771e54c209-00001.parquet │   └── 00000-0-ecd3f21c-1bc0-4cdc-8917-d9a1afe7ce55-00001.parquet └── metadata ├── 00000-d864e750-e5e2-4afd-bddb-2fab1e627a21.metadata.json ├── 00001-aabfd9a8-7dcd-4aa0-99aa-f6695f39bf6b.metadata.json ├── 00002-b5b7725f-7e86-454b-8d16-0e142bc84266.metadata.json ├── 0254b8b6-4d76-473c-86c2-97acda68d587-m0.avro ├── f787e035-8f7c-43a3-b264-42057bad2710-m0.avro ├── snap-6190364701448945732-1-0254b8b6-4d76-473c-86c2-97acda68d587.avro └── snap-6460256963744122971-1-f787e035-8f7c-43a3-b264-42057bad2710.avro   $ parquet head ~/t20/data/00000-0-ecd3f21c-1bc0-4cdc-8917-d9a1afe7ce55-00001.parquet                        {"id": 20} $ parquet head ~/t20/data/00000-0-9c7ff22e-a767-4b85-91ec-a2771e54c209-00001.parquet   {"id": 10}