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Posted to issues@carbondata.apache.org by "Ravindra Pesala (JIRA)" <ji...@apache.org> on 2017/12/06 16:22:00 UTC
[jira] [Resolved] (CARBONDATA-1737) Carbon1.3.0-Pre-AggregateTable
- Pre-aggregate table loads partially when segment filter is set on the
main table
[ 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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