Fokko opened a new issue, #345:
URL: https://github.com/apache/iceberg-go/issues/345
### Apache Iceberg version
None
### Please describe the bug 🐞
This is a minor thing, but I think it would be nice to get fixed anyway.
While generating some V1 and V2 metadata, I noticed that for V1, properties
serialize to `{}`, while for V2 it is a `null`. For both the field is optional.
I think it would be nice to either go for `{}` or leave the keys out.
V1:
```
{
"schema": {
"type": "struct",
"fields": [
{
"type": "int",
"id": 1,
"name": "id",
"required": true
}
],
"schema-id": 0,
"identifier-field-ids": []
},
"partition-spec": null,
"format-version": 1,
"table-uuid": "dd93fa46-a1a7-43bb-8748-6cc7eff107a3",
"location": "s3a://warehouse/iceberg/iceberg-test-2.db/test-table-2",
"last-updated-ms": 1742412491193,
"last-column-id": 1,
"schemas": [
{
"type": "struct",
"fields": [
{
"type": "int",
"id": 1,
"name": "id",
"required": true
}
],
"schema-id": 0,
"identifier-field-ids": []
}
],
"current-schema-id": 0,
"partition-specs": [
{
"spec-id": 0,
"fields": []
}
],
"default-spec-id": 0,
"last-partition-id": 999,
"properties": {},
"snapshot-log": null,
"metadata-log": null,
"sort-orders": [
{
"order-id": 0,
"fields": []
}
],
"default-sort-order-id": 0,
"refs": null
}
```
V2:
```
{
"last-sequence-number": 0,
"format-version": 2,
"table-uuid": "afbf8aa3-3786-47fe-b107-48d1efe7b016",
"location": "s3a://warehouse/iceberg/iceberg-test-2/test-table-2",
"last-updated-ms": 1742411676663,
"last-column-id": 1,
"schemas": [
{
"type": "struct",
"fields": [
{
"type": "int",
"id": 1,
"name": "id",
"required": true
}
],
"schema-id": 0,
"identifier-field-ids": []
}
],
"current-schema-id": 0,
"partition-specs": [
{
"spec-id": 0,
"fields": []
}
],
"default-spec-id": 0,
"last-partition-id": 999,
"properties": null,
"snapshot-log": null,
"metadata-log": null,
"sort-orders": [
{
"order-id": 0,
"fields": []
}
],
"default-sort-order-id": 0,
"refs": null
}
```
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