Github user xuchuanyin commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2900#discussion_r231012866
--- Diff:
hadoop/src/main/java/org/apache/carbondata/hadoop/api/CarbonTableInputFormat.java
---
@@ -575,6 +576,8 @@ private BitSet setMatchedPartitions(String
partitionIds, Expression filter,
*/
public BlockMappingVO getBlockRowCount(Job job, CarbonTable table,
List<PartitionSpec> partitions) throws IOException {
+ // no useful information for count star query without filter, so
disable explain collector
+ ExplainCollector.remove();
--- End diff --
oh... I understand.
The current implementation of pruning collector may has bugs. Based on the
current implementation, your modification is OK...
---
