ravipesala commented on a change in pull request #3355: [HOTFIX] Improve select
query after Update/Delete operation.
URL: https://github.com/apache/carbondata/pull/3355#discussion_r344614803
##########
File path:
core/src/main/java/org/apache/carbondata/core/statusmanager/SegmentUpdateStatusManager.java
##########
@@ -348,50 +324,67 @@ public boolean isBlockValid(String segName, String
blockName) {
return deleteFileList;
}
final long deltaEndTimeStamp = getEndTimeOfDeltaFile(extension, block);
-
- // final long deltaEndTimeStamp = block.getDeleteDeltaEndTimeAsLong();
- // final long deltaStartTimestamp =
block.getDeleteDeltaStartTimeAsLong();
- return getFilePaths(blockDir, blockNameFromTuple, extension,
deleteFileList,
- deltaStartTimestamp, deltaEndTimeStamp);
+ // If start and end time is same then it has only one delta file so
construct the file
+ // directly with available information with out listing
+ if
(block.getDeleteDeltaStartTimestamp().equals(block.getDeleteDeltaEndTimestamp()))
{
+ deleteFileList.add(
+ blockDir + CarbonCommonConstants.FILE_SEPARATOR +
block.getBlockName() + "-" + block
Review comment:
Ok, For better performance and memory utilization StringBuilder is better
for simple concatenation. So I used StringBuilder.
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