krvikash opened a new issue, #14755:
URL: https://github.com/apache/iceberg/issues/14755
### Apache Iceberg version
1.10.0 (latest release)
### Query engine
None
### Please describe the bug 🐞
Iceberg allows adding partition specs that reuse the same field name with
different truncate widths or bucket sizes, which results in an invalid schema.
Repro test case:
```java
@TestTemplate
public void test() {
PartitionSpec spec = PartitionSpec.builderFor(schema).bucket("data",
4).build();
TestTables.TestTable table = TestTables.create(tableDir, "test",
schema, spec, formatVersion);
assertThat(table.spec()).isEqualTo(spec);
TableMetadata base = TestTables.readMetadata("test");
PartitionSpec newSpec =
PartitionSpec.builderFor(table.schema()).bucket("data",
10).withSpecId(1).build();
table.ops().commit(base, base.updatePartitionSpec(newSpec));
assertThat(table.spec()).isEqualTo(newSpec);
createMetadataTableInstance(table, FILES).schema();
}
```
Error:
```
Conflicting partition fields: ['1000: data_bucket: bucket[4](2)', '1000:
data_bucket: bucket[10](2)']
org.apache.iceberg.exceptions.ValidationException: Conflicting partition
fields: ['1000: data_bucket: bucket[4](2)', '1000: data_bucket: bucket[10](2)']
at
org.apache.iceberg.exceptions.ValidationException.check(ValidationException.java:49)
at
org.apache.iceberg.Partitioning.buildPartitionProjectionType(Partitioning.java:295)
at org.apache.iceberg.Partitioning.partitionType(Partitioning.java:242)
at org.apache.iceberg.BaseFilesTable.schema(BaseFilesTable.java:48)
at org.apache.iceberg.FilesTable.schema(FilesTable.java:24)
at
org.apache.iceberg.TestPartitionSpecInfo.test(TestPartitionSpecInfo.java:174)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at java.base/java.util.Optional.ifPresent(Optional.java:178)
```
### Willingness to contribute
- [ ] I can contribute a fix for this bug independently
- [x] I would be willing to contribute a fix for this bug with guidance from
the Iceberg community
- [ ] I cannot contribute a fix for this bug at this time
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