jbonofre commented on code in PR #12897:
URL: https://github.com/apache/iceberg/pull/12897#discussion_r2061155133
##########
core/src/main/java/org/apache/iceberg/PartitionSpecParser.java:
##########
@@ -132,15 +147,29 @@ private static void
buildFromJsonFields(UnboundPartitionSpec.Builder builder, Js
String name = JsonUtil.getString(NAME, element);
String transform = JsonUtil.getString(TRANSFORM, element);
- int sourceId = JsonUtil.getInt(SOURCE_ID, element);
+ Preconditions.checkArgument(
+ element.has(SOURCE_ID) || element.has(SOURCE_IDS),
+ "Cannot parse partition field, either "
+ + SOURCE_ID
+ + " or "
+ + SOURCE_IDS
+ + " has to be present");
Review Comment:
I added a check to guarantee we only have `source-id` or `source-ids`, not
both (and I added a corresponding test for that).
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