397090770 opened a new issue #1764:
URL: https://github.com/apache/iceberg/issues/1764
Currently, Iceberg only deletes the latest metadata file when deleting a
table, eg. Before deleting the table, the data directory of the table is as
follows:
```
⇒ tree /data/hive/warehouse/test/
/data/hive/warehouse/test/
├── data
│ └── ts_year=2020
│ ├── id_bucket=0
│ │ ├── 00000-0-4718ae1d-ee92-4a39-9c00-6225e791cc68-00001.parquet
│ │ ├── 00000-0-88059c29-5b0d-44da-a7e2-fd886f6ff04a-00001.parquet
│ │ ├── 00001-1-5ea45c12-b7e4-47f3-8fc3-c12849679b9f-00002.parquet
│ │ └── 00001-1-6c8baddb-d0dc-4c49-9d89-75e3c55bac83-00002.parquet
│ └── id_bucket=1
│ ├── 00001-1-5ea45c12-b7e4-47f3-8fc3-c12849679b9f-00001.parquet
│ └── 00001-1-6c8baddb-d0dc-4c49-9d89-75e3c55bac83-00001.parquet
└── metadata
├── 00000-aaa7a3d5-bb25-4d07-b28c-1e9b63ef8380.metadata.json
├── 00001-77ec6836-5709-44d6-a8aa-405588cc93df.metadata.json
├── 00002-21692627-9ba1-47ef-8729-d9cd96533ba5.metadata.json
├── 57b07bcc-e3a1-4684-a2b3-26263f2b0535-m0.avro
├── bff1d409-7d63-4b33-9d10-d7ebe7efe65c-m0.avro
├── snap-2855480055257649189-1-57b07bcc-e3a1-4684-a2b3-26263f2b0535.avro
└── snap-8307457369176907400-1-bff1d409-7d63-4b33-9d10-d7ebe7efe65c.avro
5 directories, 13 files
```
after drop table, the data directory of the table is as follows:
```
⇒ tree /data/hive/warehouse/test/
/data/hive/warehouse/test/
├── data
│ └── ts_year=2020
│ ├── id_bucket=0
│ └── id_bucket=1
└── metadata
├── 00000-aaa7a3d5-bb25-4d07-b28c-1e9b63ef8380.metadata.json
└── 00001-77ec6836-5709-44d6-a8aa-405588cc93df.metadata.json
5 directories, 2 files
```
I think the other two meta files should also be deleted, because these files
are actually useless.
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