vikramahuja1001 commented on a change in pull request #4246:
URL: https://github.com/apache/carbondata/pull/4246#discussion_r779352493
##########
File path:
core/src/main/java/org/apache/carbondata/core/mutate/CarbonUpdateUtil.java
##########
@@ -733,9 +733,21 @@ public static long cleanUpDeltaFiles(CarbonTable table,
boolean isDryRun) throws
}
SegmentUpdateDetails[] updateDetails =
updateStatusManager.readLoadMetadata();
for (SegmentUpdateDetails block : updateDetails) {
- totalDeltaFiles.stream().filter(fileName ->
fileName.getName().endsWith(block
- .getDeleteDeltaStartTimestamp() +
CarbonCommonConstants.DELETE_DELTA_FILE_EXT))
- .collect(Collectors.toList()).forEach(fileName ->
totalDeltaFiles.remove(fileName));
+ // Case 1: When deleteDeltaStartTimestamp = deleteDeltaEndTimestamp.
in this case only 1
+ // delta file is present and deltaFileStamps is NULL
+ // Case 2: When deleteDeltaStartTimestamp != deleteDeltaEndTimestamp.
in thios case more
+ // than 1 delta files are present, then can blindly read
deltaFilesStamps variable
+ if
(block.getDeleteDeltaStartTimestamp().equals(block.getDeleteDeltaEndTimestamp()))
{
+ totalDeltaFiles.stream().filter(fileName ->
fileName.getName().endsWith(block
+ .getDeleteDeltaStartTimestamp() +
CarbonCommonConstants.DELETE_DELTA_FILE_EXT))
+
.collect(Collectors.toList()).forEach(totalDeltaFiles::remove);
+ } else {
+ for (String deltaFile: block.getDeltaFileStamps()) {
+ totalDeltaFiles.stream().filter(fileName ->
fileName.getName().endsWith(
+ deltaFile + CarbonCommonConstants.DELETE_DELTA_FILE_EXT))
+
.collect(Collectors.toList()).forEach(totalDeltaFiles::remove);
Review comment:
done
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