thomaschow opened a new pull request #2204:
URL: https://github.com/apache/iceberg/pull/2204
### Description
This PR allows for a `UpdateSchema` sequence to permit adding of a deleted
column. With this PR, the following update sequence will be permitted:
```java
Schema updatedNested = new SchemaUpdate(SCHEMA, SCHEMA_LAST_COLUMN_ID)
.deleteColumn("preferences.feature1")
.addColumn("preferences", "feature1",
Types.BooleanType.get())
.apply();
```
where previously, this was not allowed.
Note this does change the struct ordering of the column, but that's
expected.
### Tests
- [ ] unit tests
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