rdblue commented on a change in pull request #845: Add persistent IDs to
partition fields
URL: https://github.com/apache/incubator-iceberg/pull/845#discussion_r403270004
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File path: core/src/main/java/org/apache/iceberg/PartitionSpecParser.java
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@@ -147,7 +156,12 @@ private static void
buildFromJsonFields(PartitionSpec.Builder builder, JsonNode
String transform = JsonUtil.getString(TRANSFORM, element);
int sourceId = JsonUtil.getInt(SOURCE_ID, element);
- builder.add(sourceId, name, transform);
+ // partition field ids are missing in old PartitionSpec, they always
auto-increment from PARTITION_DATA_ID_START
+ if (!hasFieldId) {
Review comment:
Instead of making these changes here, I think that this should be verified
in `TableMetadata`. That would accomplish the same thing, but make it easier to
check the table version.
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