wypoon opened a new issue #3070:
URL: https://github.com/apache/iceberg/issues/3070
From the code in (spark2) `Reader#tasks()` and (spark3)
`SparkBatchQueryScan#tasks()`, it would appear that if both "snapshot-id" and
"as-of-timestamp" are specified as options in the `DataFrameReader`, then the
timestamp takes precedence:
```
if (snapshotId != null) {
scan = scan.useSnapshot(snapshotId);
}
if (asOfTimestamp != null) {
scan = scan.asOfTime(asOfTimestamp);
}
```
The call to `asOfTime` on the `TableScan` would replace the snapshot set by
the `useSnapshot`.
We don't disallow setting both options. However, I think that if the
"snapshot-id" is set, it should take precedence.
I am interested to know what the community thinks.
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