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Ran 01 Aug 2019 12:57PM UTC

Files 1067

Run time 4min

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Committed 01 Aug 2019 12:57PM UTC coverage: 77.666% (+0.004%) from 77.662%

Job # 1870.1

Build Type

push

jenkins

Committed by kunal642

Commit Message

[CARBONDATA-3478]Fix ArrayIndexOutOfBound Exception on compaction after alter operation

Problem:
In case of alter add, drop, rename operation, restructuredBlockExists will be true.
Currently, to get RawResultIterator for a block, we check if block has ColumnDrift
or not, by comparing SegmentProperties and columndrift columns.
SegmentProperties will be formed based on restructuredBlockExists.
if restructuredBlockExists is true, we will take current column schema to form SegmentProperties,
else, we will use datafilefooter columnschema to form SegmentProperties.

In the example given in CARBONDATA-3478 for both blocks, we use current column
schema to form SegmentProperties, as restructuredBlockExists will be true.
Hence, while iterating block 1, it throws ArrayIndexOutOfBound exception,
as it uses RawResultIterator instead of ColumnDriftRawResultIterator

Solution:
Use schema from datafilefooter of each block to check if it has columndrift or not

This closes #3337

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