singhpk234 commented on code in PR #14702:
URL: https://github.com/apache/iceberg/pull/14702#discussion_r2570275346
##########
core/src/main/java/org/apache/iceberg/ContentFileParser.java:
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@@ -301,4 +291,41 @@ private static Metrics metricsFromJson(JsonNode jsonNode) {
lowerBounds,
upperBounds);
}
+
+ private static void partitionToJson(
+ Types.StructType partitionType, StructLike partitionData, JsonGenerator
generator)
+ throws IOException {
+ generator.writeStartArray();
+ List<Types.NestedField> fields = partitionType.fields();
+ for (int pos = 0; pos < fields.size(); ++pos) {
+ Types.NestedField field = fields.get(pos);
+ Object partitionValue = partitionData.get(pos, Object.class);
+ SingleValueParser.toJson(field.type(), partitionValue, generator);
+ }
+ generator.writeEndArray();
+ }
+
+ private static PartitionData partitionFromJson(
+ Types.StructType partitionType, JsonNode partitionNode) {
+ Preconditions.checkArgument(
+ partitionNode.isArray(),
+ "Invalid partition data for content file: non-array (%s)",
+ partitionNode);
Review Comment:
I believe we need to add a fallback logic here for Flink case for backward
compatibility ?
considering there may be some state checkpointed per old json which will not
be readable https://github.com/apache/iceberg/pull/6934#issue-1599173071
contentFileParser class has been there since iceberg 1.4.0
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