pvary commented on a change in pull request #3060:
URL: https://github.com/apache/hive/pull/3060#discussion_r816653572
##########
File path:
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java
##########
@@ -307,6 +328,41 @@ public boolean supportsPartitionTransform() {
}).collect(Collectors.toList());
}
+ @Override
+ public DynamicPartitionCtx createDPContext(HiveConf hiveConf,
org.apache.hadoop.hive.ql.metadata.Table hmsTable)
+ throws SemanticException {
+ TableDesc tableDesc = Utilities.getTableDesc(hmsTable);
+ Table table = IcebergTableUtil.getTable(conf, tableDesc.getProperties());
+ if (table.spec().isUnpartitioned()) {
+ return null;
+ }
+ // Iceberg currently doesn't have publicly accessible partition transform
information, hence use above string parse
+ List<PartitionTransformSpec> partitionTransformSpecs =
getPartitionTransformSpec(hmsTable);
+
+ DynamicPartitionCtx dpCtx = new DynamicPartitionCtx(new LinkedHashMap<>(),
+ hiveConf.getVar(HiveConf.ConfVars.DEFAULTPARTITIONNAME),
+ hiveConf.getIntVar(HiveConf.ConfVars.DYNAMICPARTITIONMAXPARTSPERNODE));
+ List<Function<List<ExprNodeDesc>, ExprNodeDesc>> customSortExprs = new
LinkedList<>();
+ dpCtx.setCustomSortExpressions(customSortExprs);
+
+ Map<String, Integer> fieldOrderMap = new HashMap<>();
+ List<Types.NestedField> fields = table.schema().columns();
+ for (int i = 0; i < fields.size(); ++i) {
+ fieldOrderMap.put(fields.get(i).name(), i);
+ }
+
+ for (PartitionTransformSpec spec : partitionTransformSpecs) {
+ int order = fieldOrderMap.get(spec.getColumnName());
Review comment:
Is it possible to create 2 transforms for a single column?
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