[GitHub] [carbondata] jackylk commented on a change in pull request #3381: [CARBONDATA-3517]Add Segment with Path

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jackylk commented on a change in pull request #3381: [CARBONDATA-3517]Add Segment with Path
URL: https://github.com/apache/carbondata/pull/3381#discussion_r323776309
 
 

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 File path: core/src/main/java/org/apache/carbondata/core/indexstore/blockletindex/BlockDataMap.java
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 @@ -133,8 +133,11 @@
     // structure
     byte[] filePath = null;
     boolean isPartitionTable = blockletDataMapInfo.getCarbonTable().isHivePartitionTable();
-    if (isPartitionTable || !blockletDataMapInfo.getCarbonTable().isTransactionalTable()
-        || blockletDataMapInfo.getCarbonTable().isSupportFlatFolder()) {
+    if (isPartitionTable || !blockletDataMapInfo.getCarbonTable().isTransactionalTable() ||
+        blockletDataMapInfo.getCarbonTable().isSupportFlatFolder() ||
+        // if the segment data is written in tablepath then no need to store whole path of file.
+        !blockletDataMapInfo.getFilePath().startsWith(
+            blockletDataMapInfo.getCarbonTable().getTablePath())) {
       filePath = path.getParent().toString().getBytes(CarbonCommonConstants.DEFAULT_CHARSET);
 
 Review comment:
   This has problem in compaction scenario, because this if branch is false thus filePath will be empty. Then query will report NPE after compaction.
   Please add a testcase for minor compaction and perform query

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