tree 93681a43618075787b50c788d7c322e987aca0d6
parent 5b7606259d1b3dd3f25223118039dc79e6216909
author akashrn5 <akashnilugal@gmail.com> 1568278848 +0530
committer kunal642 <kunalkapoor642@gmail.com> 1570094405 +0530

[CARBONDATA-3526]Fix cache issue during update and query

Problem:
When multiple updates happen on table, cache is loaded
during update operation, but since on second update the
horizontal compaction happens inside the segment, already
loaded into cache are invalid. So if we do clean files,
physical deletion of horizontal compacted takes place,
but still the cache contains old files. So when select
 query is fired, query fails with file not found exception.

Solution:
once after horizontal compaction is finished, new compacted
files are generated, so the segments inside cache are now invalid,
so clear the cache of invalid segment after horizontal compaction.
During drop cache command, clear the cache of segmentMap also.

This closes #3385