RussellSpitzer commented on a change in pull request #2829:
URL: https://github.com/apache/iceberg/pull/2829#discussion_r705523413
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File path:
spark/src/main/java/org/apache/iceberg/spark/actions/BaseRewriteDataFilesSparkAction.java
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@@ -149,7 +168,13 @@ public RewriteDataFiles filter(Expression expression) {
try {
Map<StructLike, List<FileScanTask>> filesByPartition =
Streams.stream(fileScanTasks)
- .collect(Collectors.groupingBy(task -> task.file().partition()));
+ .collect(Collectors.groupingBy(task -> {
+ if (task.file().specId() == table.spec().specId()) {
+ return task.file().partition();
+ } else {
+ return EmptyStruct.instance();
Review comment:
Tasks which are comprised of data which is not partitioned according to
the curtain spec must treated as if they were not partitioned. We can probably
ease this restriction for partitioning that satisfies the current partitioning
(Ie Table is set to partition on day but this is an hour partition) but this is
the simplest approach for now.
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