anthonysgro commented on issue #6619:
URL: https://github.com/apache/iceberg/issues/6619#issuecomment-1404528549
Yes. So here is specifically how it happens:
Creating my table:
I create my table through an Athena query
```
CREATE TABLE IF NOT EXISTS db.friends (
id string,
name string,
birthday timestamp
)
LOCATION s3://iceberg-datalake
TBLPROPERTIES (
'table_type' = 'ICEBERG'
)
```
We can insert a couple rows into this table, yada yada.
Then comes AWS Backup. It is a service that is natively integrated into S3.
I went to the AWS Backup console, navigated to **Protected Resources**, and
picked my iceberg datalake bucket, and created a recovery point. It takes about
an hour or so for it to get backed up.
Once a recovery point becomes available, I deleted my entire
s3://iceberg-datalake bucket. If I query my iceberg table through Athena, it
throws an error (as expected, the data is deleted!). But no worries, I restored
the bucket with a click of a button in AWS Backup, and voila, it recreates
after a bit of time. I can once again query my iceberg table, as if nothing
happened. Perfect.
However, some cases where this doesn't work:
If I run:
```
DROP TABLE db.friends
```
it deletes the table and the S3 data, as expected. AWS tells me iceberg
tables do that, for some reason. But then, if I recreate the table using the
above command, and then restore my backup, it throws a strange error, and it
can't seem to get back to normal.
Is there something with a metadata pointer or something if this occurs? I
haven't been able to find a way to restore iceberg table data after a DROP
TABLE command. I would absolutely be interested in hearing more if this S3
access point integration helps prevent agains this!
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