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From "Ravindra Pesala (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CARBONDATA-1737) Carbon1.3.0-Pre-AggregateTable - Pre-aggregate table loads partially when segment filter is set on the main table
Date Wed, 06 Dec 2017 16:22:00 GMT

     [ https://issues.apache.org/jira/browse/CARBONDATA-1737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ravindra Pesala resolved CARBONDATA-1737.
-----------------------------------------
    Resolution: Fixed

> Carbon1.3.0-Pre-AggregateTable - Pre-aggregate table loads partially when segment filter
is set on the main table
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-1737
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1737
>             Project: CarbonData
>          Issue Type: Bug
>          Components: data-load
>    Affects Versions: 1.3.0
>         Environment: Test - 3 node ant cluster
>            Reporter: Ramakrishna S
>            Assignee: Kunal Kapoor
>              Labels: DFX
>             Fix For: 1.3.0
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> 1. Create a table
> create table if not exists lineitem2(L_SHIPDATE string,L_SHIPMODE string,L_SHIPINSTRUCT
string,L_RETURNFLAG string,L_RECEIPTDATE string,L_ORDERKEY string,L_PARTKEY string,L_SUPPKEY
  string,L_LINENUMBER int,L_QUANTITY double,L_EXTENDEDPRICE double,L_DISCOUNT double,L_TAX
double,L_LINESTATUS string,L_COMMITDATE string,L_COMMENT  string) STORED BY 'org.apache.carbondata.format'
TBLPROPERTIES ('table_blocksize'='128','NO_INVERTED_INDEX'='L_SHIPDATE,L_SHIPMODE,L_SHIPINSTRUCT,L_RETURNFLAG,L_RECEIPTDATE,L_ORDERKEY,L_PARTKEY,L_SUPPKEY','sort_columns'='');
> 2. Load 2 times to create 2 segments
>  load data inpath "hdfs://hacluster/user/test/lineitem.tbl.5" into table lineitem2 options('DELIMITER'='|','FILEHEADER'='L_ORDERKEY,L_PARTKEY,L_SUPPKEY,L_LINENUMBER,L_QUANTITY,L_EXTENDEDPRICE,L_DISCOUNT,L_TAX,L_RETURNFLAG,L_LINESTATUS,L_SHIPDATE,L_COMMITDATE,L_RECEIPTDATE,L_SHIPINSTRUCT,L_SHIPMODE,L_COMMENT');
> 3. Check the table content without setting any filter:
> select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem2
group by l_returnflag, l_linestatus;
> +---------------+---------------+------------------+------------------------+--+
> | l_returnflag  | l_linestatus  | sum(l_quantity)  |  sum(l_extendedprice)  |
> +---------------+---------------+------------------+------------------------+--+
> | N             | F             | 327800.0         | 4.913876776200004E8    |
> | A             | F             | 1.263625E7       | 1.893851542524009E10   |
> | N             | O             | 2.5398626E7      | 3.810981608977967E10   |
> | R             | F             | 1.2643878E7      | 1.8948524305619976E10  |
> +---------------+---------------+------------------+------------------------+--+
> 4. Set segment filter on the main table:
> set carbon.input.segments.test_db1.lineitem2=1;
> +-------------------------------------------+--------+--+
> |                    key                    | value  |
> +-------------------------------------------+--------+--+
> | carbon.input.segments.test_db1.lineitem2  | 1      |
> +-------------------------------------------+--------+--+
> 5. Create pre-aggregate table 
> create datamap agr_lineitem2 ON TABLE lineitem2 USING "org.apache.carbondata.datamap.AggregateDataMapHandler"
as select L_RETURNFLAG,L_LINESTATUS,sum(L_QUANTITY),sum(L_EXTENDEDPRICE) from lineitem2 group
by  L_RETURNFLAG, L_LINESTATUS;
> 6. Check table content:
>  select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem2
group by l_returnflag, l_linestatus;
> +---------------+---------------+------------------+------------------------+--+
> | l_returnflag  | l_linestatus  | sum(l_quantity)  |  sum(l_extendedprice)  |
> +---------------+---------------+------------------+------------------------+--+
> | N             | F             | 163900.0         | 2.4569383881000024E8   |
> | A             | F             | 6318125.0        | 9.469257712620043E9    |
> | N             | O             | 1.2699313E7      | 1.9054908044889835E10  |
> | R             | F             | 6321939.0        | 9.474262152809986E9    |
> +---------------+---------------+------------------+------------------------+--+
> 7. remove the filter on segment
> 0: jdbc:hive2://10.18.98.48:23040> reset;
> 8. Check the table conent:
>  select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem2
group by l_returnflag, l_linestatus;
> +---------------+---------------+------------------+------------------------+--+
> | l_returnflag  | l_linestatus  | sum(l_quantity)  |  sum(l_extendedprice)  |
> +---------------+---------------+------------------+------------------------+--+
> | N             | F             | 163900.0         | 2.4569383881000024E8   |
> | A             | F             | 6318125.0        | 9.469257712620043E9    |
> | N             | O             | 1.2699313E7      | 1.9054908044889835E10  |
> | R             | F             | 6321939.0        | 9.474262152809986E9    |
> +---------------+---------------+------------------+------------------------+--+
> 4 rows selected (2.341 seconds)
> 9. Load one more time:
> 10. Check table content
> select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem2
group by l_returnflag, l_linestatus;
> +---------------+---------------+------------------+------------------------+--+
> | l_returnflag  | l_linestatus  | sum(l_quantity)  |  sum(l_extendedprice)  |
> +---------------+---------------+------------------+------------------------+--+
> | N             | F             | 327800.0         | 4.913876776200005E8    |
> | A             | F             | 1.263625E7       | 1.8938515425240086E10  |
> | N             | O             | 2.5398626E7      | 3.810981608977967E10   |
> | R             | F             | 1.2643878E7      | 1.8948524305619972E10  |
> +---------------+---------------+------------------+------------------------+--+
> 4 rows selected (0.936 seconds)
> *+Expected:+*: one of these should have been the behavour:
> 1.Ignore segment filter and use all segments for pre-aggregate load. At the time of query
run, if segment filter is set then ignore the pre-aggr table and fetch data from main table.
(*Preferred*)
> Or
> 2. Reject pre-aggregate creation when segment filter is set or vis-a-versa.
> *+Actual:+* Partial data returned 



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