xxchan commented on code in PR #879:
URL: https://github.com/apache/iceberg-rust/pull/879#discussion_r1903316029
##########
crates/integrations/datafusion/tests/integration_datafusion_test.rs:
##########
@@ -295,3 +303,129 @@ async fn test_table_predict_pushdown() -> Result<()> {
assert!(s.value(1).trim().contains(expected));
Ok(())
}
+
+#[tokio::test]
+async fn test_metadata_table() -> Result<()> {
+ let iceberg_catalog = get_iceberg_catalog();
+ let namespace = NamespaceIdent::new("ns".to_string());
+ set_test_namespace(&iceberg_catalog, &namespace).await?;
+
+ let schema = Schema::builder()
+ .with_schema_id(0)
+ .with_fields(vec![
+ NestedField::required(1, "foo",
Type::Primitive(PrimitiveType::Int)).into(),
+ NestedField::optional(2, "bar",
Type::Primitive(PrimitiveType::String)).into(),
+ ])
+ .build()?;
+ let creation = get_table_creation(temp_path(), "t1", Some(schema))?;
+ iceberg_catalog.create_table(&namespace, creation).await?;
+
+ let client = Arc::new(iceberg_catalog);
+ let catalog = Arc::new(IcebergCatalogProvider::try_new(client).await?);
+
+ let ctx = SessionContext::new();
+ ctx.register_catalog("catalog", catalog);
+ let snapshots = ctx
+ .sql("select * from catalog.ns.t1$snapshots")
+ .await
+ .unwrap()
+ .collect()
+ .await
+ .unwrap();
+ check_record_batch(
+ snapshots[0].clone(),
+ expect![[r#"
+ Field { name: "committed_at", data_type: Timestamp(Millisecond,
Some("+00:00")), nullable: false, dict_id: 0, dict_is_ordered: false, metadata:
{} },
+ Field { name: "snapshot_id", data_type: Int64, nullable: false,
dict_id: 0, dict_is_ordered: false, metadata: {} },
+ Field { name: "parent_id", data_type: Int64, nullable: true, dict_id:
0, dict_is_ordered: false, metadata: {} },
+ Field { name: "operation", data_type: Utf8, nullable: false, dict_id:
0, dict_is_ordered: false, metadata: {} },
+ Field { name: "manifest_list", data_type: Utf8, nullable: false,
dict_id: 0, dict_is_ordered: false, metadata: {} },
+ Field { name: "summary", data_type: Map(Field { name: "entries",
data_type: Struct([Field { name: "keys", data_type: Utf8, nullable: false,
dict_id: 0, dict_is_ordered: false, metadata: {} }, Field { name: "values",
data_type: Utf8, nullable: true, dict_id: 0, dict_is_ordered: false, metadata:
{} }]), nullable: false, dict_id: 0, dict_is_ordered: false, metadata: {} },
false), nullable: false, dict_id: 0, dict_is_ordered: false, metadata: {} }"#]],
+ expect![[r#"
+ committed_at: PrimitiveArray<Timestamp(Millisecond, Some("+00:00"))>
+ [
+ ],
+ snapshot_id: PrimitiveArray<Int64>
Review Comment:
Currently the datafusion test cases don't have any data present so this is
empty
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