GitHub user akashrn5 opened a pull request:
https://github.com/apache/carbondata/pull/2743
[CARBONDATA-2953]fixed dataload failure with sort columns and query wrong
result from other session
### Problem:
1) when dataload is done with sort columns, it fails with following
exeptions
2) when two sessions are running in parallel, the follow below steps in
session1
drop table
create table
load data to table
follow below step in session2
query on table(select * from table limit 1), then the query
returns null result instead of proper result
### Solution
1) During sorting, the index increament for no dictionary measure data was
not happening correctly, hence was trying to cast to byte array and failing
2) If table is dropped from first session and created again, and queries
from another session, the metastore needs to be updated for newly created
table, but since the database in identifier was None. we were trying to get old
table from default database, here need to get from current database
Be sure to do all of the following checklist to help us incorporate
your contribution quickly and easily:
- [ ] Any interfaces changed?
- [ ] Any backward compatibility impacted?
- [ ] Document update required?
- [ ] Testing done
Please provide details on
- Whether new unit test cases have been added or why no new tests
are required?
- How it is tested? Please attach test report.
- Is it a performance related change? Please attach the performance
test report.
- Any additional information to help reviewers in testing this
change.
- [ ] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/akashrn5/incubator-carbondata issues
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/2743.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2743
----
commit 19877ca89b515116a34108a56c07b2cd03e809bd
Author: akashrn5 <akashnilugal@...>
Date: 2018-09-20T10:09:01Z
fixed dataload failure with sort columns and query wrong rsult from other
session
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