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 to add 10 segments and do minor compaction and perform query
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