[CARBONDATA-1956] Select query with sum, count and avg throws exception for pre aggregate table

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.3.0
• Component/s: data-query
• Environment: spark2.1
• Assignee: Unassigned
• Reporter: Geetika Gupta
• Created: 02/Jan/18 05:42
• Updated: 29/Jan/18 08:11
• Resolved: 29/Jan/18 08:11

Description

I create a datamap using the following command:

create datamap uniqdata_agg_d on table uniqdata_29 using 'preaggregate' as select sum(decimal_column1), count(cust_id), avg(bigint_column1) from uniqdata_29 group by cust_id;

The datamap creation was successfull, but when I tried the following query:
select sum(decimal_column1), count(cust_id), avg(bigint_column1) from uniqdata_29 group by cust_id;

It throws the following exception:
Error: org.apache.spark.sql.AnalysisException: cannot resolve '(sum(uniqdata_29_uniqdata_agg_d.`uniqdata_29_bigint_column1_sum`) / sum(uniqdata_29_uniqdata_agg_d.`uniqdata_29_bigint_column1_count`))' due to data type mismatch: '(sum(uniqdata_29_uniqdata_agg_d.`uniqdata_29_bigint_column1_sum`) / sum(uniqdata_29_uniqdata_agg_d.`uniqdata_29_bigint_column1_count`))' requires (double or decimal) type, not bigint;;
'Aggregate uniqdata_29_cust_id_count#244, sum(uniqdata_29_decimal_column1_sum#243) AS sum(decimal_column1)#274, sum(cast(uniqdata_29_cust_id_count#244 as bigint)) AS count(cust_id)#276L, (sum(uniqdata_29_bigint_column1_sum#245L) / sum(uniqdata_29_bigint_column1_count#246L)) AS avg(bigint_column1)#279
+- Relationuniqdata_29_decimal_column1_sum#243,uniqdata_29_cust_id_count#244,uniqdata_29_bigint_column1_sum#245L,uniqdata_29_bigint_column1_count#246L CarbonDatasourceHadoopRelation [ Database name :28dec, Table name :uniqdata_29_uniqdata_agg_d, Schema :Some(StructType(StructField(uniqdata_29_decimal_column1_sum,DecimalType(30,10),true), StructField(uniqdata_29_cust_id_count,IntegerType,true), StructField(uniqdata_29_bigint_column1_sum,LongType,true), StructField(uniqdata_29_bigint_column1_count,LongType,true))) ] (state=,code=0)

Steps for creation of maintable:
CREATE TABLE uniqdata_29(CUST_ID int,CUST_NAME String,ACTIVE_EMUI_VERSION string, DOB timestamp, DOJ timestamp, BIGINT_COLUMN1 bigint,BIGINT_COLUMN2 bigint,DECIMAL_COLUMN1 decimal(30,10), DECIMAL_COLUMN2 decimal(36,10),Double_COLUMN1 double, Double_COLUMN2 double,INTEGER_COLUMN1 int) STORED BY 'org.apache.carbondata.format';

Load command:
LOAD DATA INPATH 'hdfs://localhost:54311/Files/2000_UniqData.csv' into table uniqdata_29 OPTIONS('DELIMITER'=',', 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');

Datamap creation command:
create datamap uniqdata_agg_d on table uniqdata_29 using 'preaggregate' as select sum(decimal_column1), count(cust_id), avg(bigint_column1) from uniqdata_29 group by cust_id;

Note: select sum(decimal_column1), count(cust_id), avg(bigint_column1) from uniqdata_29 group by cust_id; executed successfully on maintable