experiments with materialization

apps/other/src/assets.py

@@ -1,4 +1,6 @@
+import os
 import sys
+from collections.abc import Iterator
 from functools import partial
 from logging import getLogger
 
@@ -46,3 +48,27 @@ def iris_cleaned(table: pa.Table) -> pa.Table:
     df = table.to_pandas()
     result_df = df.dropna().drop_duplicates()
     return pa.Table.from_pandas(result_df)
+
+
+daily_partitions_def = dg.DailyPartitionsDefinition(
+    start_date="2024-09-01", end_offset=1, timezone=os.environ.get("TZ", "UTC")
+)
+
+
+@asset(partitions_def=daily_partitions_def)
+def one() -> Iterator[dg.Output[int]]:
+    # Attempt to materialize multiple times
+    yield dg.Output(1)
+    yield dg.Output(2)
+
+    # Error: Compute for op "other__one" returned an output "result" multiple times
+
+
+@asset()
+def two(context: dg.AssetExecutionContext) -> None:
+    # Attempt to log materialization of other asset
+    context.log_event(
+        dg.AssetMaterialization(
+            asset_key=one.key, partition="2025-07-27"
+        )  # this works!
+    )