Github user amansinha100 commented on a diff in the pull request:
https://github.com/apache/drill/pull/156#discussion_r39528224
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/ParquetPartitionDescriptor.java
---
@@ -125,4 +117,16 @@ private String getBaseTableLocation() {
final FormatSelection origSelection = (FormatSelection)
scanRel.getDrillTable().getSelection();
return origSelection.getSelection().selectionRoot;
}
+
+ @Override
+ protected void createPartitionSublists() {
+ Set<String> fileLocations = ((ParquetGroupScan)
scanRel.getGroupScan()).getFileSet();
+ List<PartitionLocation> locations = new LinkedList<>();
+ for (String file: fileLocations) {
+ locations.add(new DFSPartitionLocation(MAX_NESTED_SUBDIRS,
getBaseTableLocation(), file));
--- End diff --
Long file names are an issue not just for partition pruning but metadata in
general..that's what I was saying previously about FormatSelection.getAsFiles()
and ParquetGroupScan.getFileSet() etc. If we want to put the names into direct
memory rather than heap, then a broader change is needed. We should have a
separate JIRA for that I think.
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