c-thiel commented on code in PR #331:
URL: https://github.com/apache/iceberg-rust/pull/331#discussion_r1670513358
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crates/iceberg/testdata/view_metadata/ViewMetadataV2Valid.json:
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+{
Review Comment:
@nastra I added more tests that cover non-happy cases.
However, there isn't much in
https://github.com/apache/iceberg/tree/5ea78e3fbe5d8c9c846a1b86bcd2b77d13a31acd/core/src/test/java/org/apache/iceberg/view
we can use for now. The `ViewMetadataBuilder` I started with is on the same
level as the `TableMetadataBuilder` - it can do almost nothing except changing
the UUID. The functions tested in the java part are simply not implemented yet.
We do have a more complete implementation over at our Iceberg catalog and want
to PR them here (https://github.com/hansetag/iceberg-catalog/issues/46), I just
want to start with the foundation before heading into the more controversial
builder bits.
Would this be alright for you?
Besides the Metadata-Builder, I would like to create 2 follow-up issues:
- Currently in `Snapshots` we use a fallible method for the timestamp()
method. For views I am using a non-fallible version, creating a small
inconsistency. I would create a new issues to remove `unwrap` from timestamps
where they are used.
- Allow for empty namespaces, following our discussion below. I am not sure
exactly how to handle this, but right now Rust does not allow the creation of
the empty Namespace as used in spark
(https://github.com/apache/iceberg-rust/blob/48f9e3e8bff0224569da8dd5beb89ed0c8cc4513/crates/iceberg/src/catalog/mod.rs#L111).
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