difin commented on code in PR #5393:
URL: https://github.com/apache/hive/pull/5393#discussion_r1736933689
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java:
##########
@@ -2095,6 +2097,55 @@ public List<Partition>
getPartitionsByExpr(org.apache.hadoop.hive.ql.metadata.Ta
}
}
+ @Override
+ public List<Partition>
getPartitionsWithFilter(org.apache.hadoop.hive.ql.metadata.Table hmsTable,
+ ExprNodeDesc filter, boolean currentSpec) {
+ SearchArgument sarg = ConvertAstToSearchArg.create(conf,
(ExprNodeGenericFuncDesc) filter);
+ Expression exp = HiveIcebergFilterFactory.generateFilterExpression(sarg);
+ Table table = IcebergTableUtil.getTable(conf, hmsTable.getTTable());
+ int tableSpecId = table.spec().specId();
+ List<Partition> partitions = Lists.newArrayList();
+
+ TableScan scan =
table.newScan().filter(exp).caseSensitive(false).includeColumnStats().ignoreResiduals();
+
+ try (CloseableIterable<FileScanTask> tasks = scan.planFiles()) {
+ tasks.forEach(task -> {
+ DataFile file = task.file();
+ PartitionSpec spec = task.spec();
+ if ((currentSpec && file.specId() == tableSpecId) || (!currentSpec &&
file.specId() != tableSpecId)) {
+ PartitionData partitionData =
IcebergTableUtil.toPartitionData(task.partition(), spec.partitionType());
+ String partName = spec.partitionToPath(partitionData);
+ Map<String, String> partSpecMap = Maps.newLinkedHashMap();
+ Warehouse.makeSpecFromName(partSpecMap, new Path(partName), null);
+ DummyPartition partition = new DummyPartition(hmsTable, partName,
partSpecMap);
+ if (!partitions.contains(partition)) {
+ partitions.add(partition);
+ }
+ }
+ });
+ } catch (IOException ioe) {
+ LOG.warn("Failed to close task iterable", ioe);
+ }
+ partitions.sort(Comparator.comparing(Partition::getName));
+ return partitions;
+ }
+
+ @Override
+ public boolean isFilterMatching(org.apache.hadoop.hive.ql.metadata.Table
hmsTable, ExprNodeDesc filter) {
Review Comment:
The goal of this method is to return true if the table contain any records
matching the filter expression, false otherwise. Why it doesn't belong here?
I renamed the method to `hasDataMatchingFilterExpr`, hopefully it makes it
more readable.
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