SourabhBadhya commented on code in PR #4785:
URL: https://github.com/apache/hive/pull/4785#discussion_r1381670567
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java:
##########
@@ -1932,4 +1938,49 @@ public boolean
canPerformMetadataDelete(org.apache.hadoop.hive.ql.metadata.Table
return false;
}
}
+
+ @Override
+ public List<FieldSchema>
getPartitionKeys(org.apache.hadoop.hive.ql.metadata.Table hmsTable) {
+ Table icebergTable = IcebergTableUtil.getTable(conf, hmsTable.getTTable());
+ Schema schema = icebergTable.schema();
+ List<FieldSchema> hiveSchema = HiveSchemaUtil.convert(schema);
+ Map<String, String> colNameToColType = hiveSchema.stream()
+ .collect(Collectors.toMap(FieldSchema::getName, FieldSchema::getType));
+ return icebergTable.spec().fields().stream().map(partField ->
+ new FieldSchema(schema.findColumnName(partField.sourceId()),
+ colNameToColType.get(schema.findColumnName(partField.sourceId())),
+ String.format("Transform: %s",
partField.transform().toString()))).collect(Collectors.toList());
+ }
+
+ @Override
+ public List<Partition>
getPartitionsByExpr(org.apache.hadoop.hive.ql.metadata.Table hmsTable,
ExprNodeDesc desc)
+ throws SemanticException {
+ Table icebergTable = IcebergTableUtil.getTable(conf, hmsTable.getTTable());
+ PartitionSpec pSpec = icebergTable.spec();
+ PartitionsTable partitionsTable = (PartitionsTable) MetadataTableUtils
+ .createMetadataTableInstance(icebergTable,
MetadataTableType.PARTITIONS);
+ SearchArgument sarg = ConvertAstToSearchArg.create(conf,
(ExprNodeGenericFuncDesc) desc);
+ Expression expression =
HiveIcebergFilterFactory.generateFilterExpression(sarg);
+ Set<PartitionData> partitionList = Sets.newHashSet();
+ try (CloseableIterable<FileScanTask> fileScanTasks =
partitionsTable.newScan().planFiles()) {
+ fileScanTasks.forEach(task ->
+
partitionList.addAll(Sets.newHashSet(CloseableIterable.transform(task.asDataTask().rows(),
row -> {
+ StructProjection data = row.get(PART_IDX, StructProjection.class);
+ PartitionData partitionData =
IcebergTableUtil.toPartitionData(data, pSpec.partitionType());
+ ResidualEvaluator resEval = ResidualEvaluator.of(pSpec,
expression, false);
+ if
(resEval.residualFor(partitionData).isEquivalentTo(Expressions.alwaysTrue())) {
+ return partitionData;
+ } else {
Review Comment:
Done
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java:
##########
@@ -997,6 +1012,66 @@ public void
postGetTable(org.apache.hadoop.hive.metastore.api.Table hmsTable) {
}
}
+ @Override
+ public void preDropPartitions(org.apache.hadoop.hive.metastore.api.Table
hmsTable,
+ EnvironmentContext context,
+ List<org.apache.commons.lang3.tuple.Pair<Integer, byte[]>> partExprs)
+ throws MetaException {
+ Table icebergTbl = IcebergTableUtil.getTable(conf, hmsTable);
+ DeleteFiles deleteFiles = icebergTbl.newDelete();
+ List<Expression> expressions = partExprs.stream().map(partExpr -> {
+ ExprNodeDesc exprNodeDesc = SerializationUtilities
+ .deserializeObjectWithTypeInformation(partExpr.getRight(), true);
+ SearchArgument sarg = ConvertAstToSearchArg.create(conf,
(ExprNodeGenericFuncDesc) exprNodeDesc);
+ return HiveIcebergFilterFactory.generateFilterExpression(sarg);
+ }).collect(Collectors.toList());
+ PartitionsTable partitionsTable = (PartitionsTable) MetadataTableUtils
+ .createMetadataTableInstance(icebergTbl, MetadataTableType.PARTITIONS);
+ List<PartitionData> partitionList = Lists.newArrayList();
+ Expression finalExp = Expressions.alwaysFalse();
+ PartitionSpec pSpec = icebergTbl.spec();
+ for (int index = 0; index < expressions.size(); index++) {
+ finalExp = Expressions.or(finalExp, expressions.get(index));
+ }
+ try (CloseableIterable<FileScanTask> fileScanTasks =
partitionsTable.newScan().planFiles()) {
+ fileScanTasks.forEach(task ->
+
partitionList.addAll(Sets.newHashSet(CloseableIterable.transform(task.asDataTask().rows(),
row -> {
+ StructProjection data = row.get(0, StructProjection.class);
+ PartitionData partitionData =
IcebergTableUtil.toPartitionData(data, pSpec.partitionType());
+ boolean required = false;
+ for (Expression expr : expressions) {
+ ResidualEvaluator resEval =
ResidualEvaluator.of(icebergTbl.spec(), expr, false);
+ if
(resEval.residualFor(partitionData).isEquivalentTo(Expressions.alwaysTrue())) {
+ required = true;
Review Comment:
Done
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