> MV dataset when created with Joins, then it is not pointing towards the MV, while executing that join query.
> ------------------------------------------------------------------------------------------------------------
>
> Key: CARBONDATA-2522
> URL:
https://issues.apache.org/jira/browse/CARBONDATA-2522> Project: CarbonData
> Issue Type: Bug
> Environment: 3 Node Opensource ANT Cluster.
> Reporter: Prasanna Ravichandran
> Priority: Minor
> Labels: MV, Materialistic_Views
> Attachments: MV_joins.docx, data_mv.csv
>
>
> When MV is created on Joining tables, then the explain of that join query points to the maintable, instead of the created MV datamap.
> Queries:
> drop table if exists fact_table1;
> CREATE TABLE fact_table1 (empno int, empname String, designation String, doj Timestamp,
> workgroupcategory int, workgroupcategoryname String, deptno int, deptname String,
> projectcode int, projectjoindate Timestamp, projectenddate Timestamp,attendance int,
> utilization int,salary int)
> STORED BY 'org.apache.carbondata.format';
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table1 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table1 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> drop table if exists fact_table2;
> CREATE TABLE fact_table2 (empno int, empname String, designation String, doj Timestamp,
> workgroupcategory int, workgroupcategoryname String, deptno int, deptname String,
> projectcode int, projectjoindate Timestamp, projectenddate Timestamp,attendance int,
> utilization int,salary int)
> STORED BY 'org.apache.carbondata.format';
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table2 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table2 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> drop table if exists fact_table3;
> CREATE TABLE fact_table3 (empno int, empname String, designation String, doj Timestamp,
> workgroupcategory int, workgroupcategoryname String, deptno int, deptname String,
> projectcode int, projectjoindate Timestamp, projectenddate Timestamp,attendance int,
> utilization int,salary int)
> STORED BY 'org.apache.carbondata.format';
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table2 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data_mv.csv' INTO TABLE fact_table2 OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '"','timestampformat'='dd-MM-yyyy');
> create datamap datamap25 using 'mv' as select t1.empname as c1, t2.designation from fact_table1 t1,fact_table2 t2,fact_table3 t3 where t1.empname = t2.empname and t1.empname=t3.empname;
> explain create datamap datamap25 using 'mv' as select t1.empname as c1, t2.designation from fact_table1 t1,fact_table2 t2,fact_table3 t3 where t1.empname = t2.empname and t1.empname=t3.empname;
>
Locked
