[CARBONDATA-2537] MV Dataset - User queries with 'having' condition is not accessing the data from the MV datamap.

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Invalid
• Component/s: data-query
• Labels: Carbondata MV Materialistic_Views
• Environment: 3 Node Opensource ANT cluster.
• Assignee: Bo Xu
• Reporter: Prasanna Ravichandran
• Created: 25/May/18 10:21
• Updated: 27/Jun/18 06:27
• Resolved: 27/Jun/18 06:27

Description

User queries with 'having' condition is not accessing the data from the MV datamap. It is accessing the data from the Main table.

Test queries - spark shell:

scala>carbon.sql("CREATE TABLE originTable (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'").show()
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scala>carbon.sql("LOAD DATA local inpath 'hdfs://hacluster/user/prasanna/data.csv' INTO TABLE originTable OPTIONS('DELIMITER'= ',', 'QUOTECHAR'= '\"','timestampformat'='dd-MM-yyyy')").show()
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scala> carbon.sql("select empno from originTable having salary>10000").show(200,false)
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empno

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14

15

20

19

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scala> carbon.sql("create datamap mv_hav using 'mv' as select empno from originTable having salary>10000").show(200,false)
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scala> carbon.sql("explain select empno from originTable having salary>10000").show(200,false)
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plan

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== CarbonData Profiler == Table Scan on origintable total blocklets: 1 filter: (salary <> null and salary > 10000) pruned by Main DataMap skipped blocklets: 0

== Physical Plan == *Project empno#1131 +- *BatchedScan CarbonDatasourceHadoopRelation [ Database name :default, Table name :origintable, Schema :Some(StructType(StructField(empno,IntegerType,true), StructField(empname,StringType,true), StructField(designation,StringType,true), StructField(doj,TimestampType,true), StructField(workgroupcategory,IntegerType,true), StructField(workgroupcategoryname,StringType,true), StructField(deptno,IntegerType,true), StructField(deptname,StringType,true), StructField(projectcode,IntegerType,true), StructField(projectjoindate,TimestampType,true), StructField(projectenddate,TimestampType,true), StructField(attendance,IntegerType,true), StructField(utilization,IntegerType,true), StructField(salary,IntegerType,true))) ] default.origintableempno#1131 PushedFilters: [IsNotNull(salary), GreaterThan(salary,10000)]

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Issue Links

• is a child of: CARBONDATA-2628 Fix MV defects