jbonofre commented on code in PR #12897:
URL: https://github.com/apache/iceberg/pull/12897#discussion_r2061143410
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core/src/main/java/org/apache/iceberg/PartitionSpecParser.java:
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@@ -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:
`source-id` and `source-ids` are exclusive, meaning that if `source-id` is
present, `source-ids` should not be there, and if `source-ids` is present
`source-id` should not be there.
I'm adding a check to raise to check if not both are provided.
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