Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/620#discussion_r106136281
--- Diff:
processing/src/main/java/org/apache/carbondata/processing/newflow/steps/SortProcessorStepImpl.java
---
@@ -74,7 +81,6 @@ public void initialize() throws IOException {
public Iterator<CarbonRowBatch>[] execute() throws
CarbonDataLoadingException {
final Iterator<CarbonRowBatch>[] iterators = child.execute();
Iterator<CarbonRowBatch>[] sortedIterators = sorter.sort(iterators);
- child.close();
--- End diff --
It is removed as part of refactoring of code to support batch sort. Earlier
it was needed to get the cardinality of all dimensions. Now there is a new
interface `DictionaryCardinalityFinder` has been added to figure out the
cardinalities.
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