Details
Major Description
1. Create a table
create table if not exists lineitem1(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. Run load :
load data inpath "hdfs://hacluster/user/test/lineitem.tbl.1" into table lineitem1 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. create pre-agg table
create datamap agr_lineitem3 ON TABLE lineitem3 USING "org.apache.carbondata.datamap.AggregateDataMapHandler" as select L_RETURNFLAG,L_LINESTATUS,sum(L_QUANTITY),sum(L_EXTENDEDPRICE) from lineitem3 group by L_RETURNFLAG, L_LINESTATUS;
3. Check table content using aggregate query:
select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem3 group by l_returnflag, l_linestatus;
------------------------------------------------------------------
| l_returnflag | l_linestatus | sum(l_quantity) | sum(l_extendedprice) |
------------------------------------------------------------------
| N | F | 4913382.0 | 7.369901176949993E9 |
| A | F | 1.88818373E8 | 2.8310705145736383E11 |
| N | O | 3.82400594E8 | 5.734650756707479E11 |
| R | F | 1.88960009E8 | 2.833523780876951E11 |
------------------------------------------------------------------
4 rows selected (1.568 seconds)
4. Load one more time:
load data inpath "hdfs://hacluster/user/test/lineitem.tbl.1" into table lineitem1 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');
5. Check table content using aggregate query:
select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem3 group by l_returnflag, l_linestatus;
------------------------------------------------------------------
| l_returnflag | l_linestatus | sum(l_quantity) | sum(l_extendedprice) |
------------------------------------------------------------------
| N | F | 9826764.0 | 1.4739802353899986E10 |
| A | F | 3.77636746E8 | 5.662141029147278E11 |
| N | O | 7.64801188E8 | 1.1469301513414958E12 |
| R | F | 3.77920018E8 | 5.667047561753901E11 |
------------------------------------------------------------------
6. Set query from segment 1:
0: jdbc:hive2://10.18.98.48:23040> set carbon.input.segments.test_db1.lilneitem1=1;
--------------------------------------------------
| key | value |
--------------------------------------------------
| carbon.input.segments.test_db1.lilneitem1 | 1 |
--------------------------------------------------
7. Check table content using aggregate query:
select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem3 group by l_returnflag, l_linestatus;
Expected: It should return the values from segment 1 alone.
Actual : : It returns values from both segments
------------------------------------------------------------------
| l_returnflag | l_linestatus | sum(l_quantity) | sum(l_extendedprice) |
------------------------------------------------------------------
| N | F | 9826764.0 | 1.4739802353899986E10 |
| A | F | 3.77636746E8 | 5.662141029147278E11 |
| N | O | 7.64801188E8 | 1.1469301513414958E12 |
| R | F | 3.77920018E8 | 5.667047561753901E11 |
------------------------------------------------------------------
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