[GitHub] carbondata issue #2751: [CARBONDATA-2946] Add bloomindex version info file f...

[xuchuanyin]

Github user xuchuanyin commented on the issue:

    https://github.com/apache/carbondata/pull/2751
  
    Hi, I've tested this PR in local machine and it works fine.
    
    Steps used to verify this:
    ```
    1. Use CarbonData 1.4.1-RC2 jar and start spark & JDBCServer & beeline
    
    2. CREATE TABLE
     create table test_adpt_int (id int, name string, age int) stored by 
'carbondata' TBLPROPERTIES('sort_columns'='id');
    
    3. CREATE DATAMAP
     create datamap dm_id on table test_adpt_int using 'bloomfilter' 
DMPROPERTIES('index_columns'='id');
    
    4. LOAD
     insert into table test_adpt_int values (1, 'name1', 10),(3, 'name3', 
30),(5, 'name5', 50),(7, 'name7', 70),(9, 'name9', 90),(10, 'name10', 100);
    
    5. QUERY
    select * from test_adpt_int where id = 6;
    select * from test_adpt_int where id = 5;
    
    6. Use master code and apply current PR to generate jar and restart spark & 
JDBCServer & beeline
    
    7. QUERY should work fine
    select * from test_adpt_int where id = 6;
    select * from test_adpt_int where id = 5;
    
    8. LOAD again
     insert into table test_adpt_int values (1, 'name1', 10),(3, 'name3', 
30),(5, 'name5', 50),(7, 'name7', 70),(9, 'name9', 90),(10, 'name10', 100);
    
    9. QUERY again should work fine
    select * from test_adpt_int where id = 6;
    select * from test_adpt_int where id = 5;
    ```
    besides, the bloom index folder looks like below:
    
    
![image](https://user-images.githubusercontent.com/10445758/45991871-53ab0600-c0b9-11e8-8320-38337b6eb23f.png)
    The segment generated in 1.4.1 do not have version info file while the 
segment generated in 1.5.0 has the version info.
    *Note:* in 1.5.0, we introduce the 'mergeShard' to merge the bloom index 
file.


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