gerinsp opened a new pull request, #1179:
URL: https://github.com/apache/iceberg-go/pull/1179
### Summary
Fixes a panic when reading manifest partition data where avro returns a nil
value for a logical partition field.
Previously, `convertAvroValueToIcebergType` could reach the `atype.Date`
branch with a nil value and panic with:
interface conversion: interface {} is nil, not in32
This change return nil immediately when the Avro partition value is nil.
### Testing
Added a regresion test that builds a data file with a nil `dt` partition
value mapped to field ID 1000 using Avro logical type `date` then calls
`ValueCounts()` to exercise the same inilization path.
Verified with:
go test -run TestDataFileInitializeMapDataHandlesNilLogicalPartitionValue .
go test ./...
git diff --check
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