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https://issues.apache.org/jira/browse/CARBONDATA-994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vandana Yadav closed CARBONDATA-994.
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Resolution: Fixed
> Incorrect result displays while using limit in presto integration
> -----------------------------------------------------------------
>
> Key: CARBONDATA-994
> URL: https://issues.apache.org/jira/browse/CARBONDATA-994
> Project: CarbonData
> Issue Type: Improvement
> Components: data-query, presto-integration
> Affects Versions: 1.1.0
> Environment: spark 2.1, presto 0.166
> Reporter: Vandana Yadav
> Priority: Minor
> Attachments: 2000_UniqData.csv
>
>
> Incorrect result displays while using limit in presto integration(in
> carbondata null values appear first so result contain null values and records
> but in presto null values appear at last so result contain only records so
> resultset is different in both)
> Steps to reproduce :
> 1. In CarbonData:
> a) Create table:
> CREATE TABLE uniqdata (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' TBLPROPERTIES
> ("TABLE_BLOCKSIZE"= "256 MB");
> b) Load data :
> LOAD DATA INPATH 'hdfs://localhost:54310/2000_UniqData.csv' into table
> uniqdata 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');
> 2. In presto
> a) Execute the query:
> select CUST_ID as a from uniqdata order by a asc limit 10
> Expected result: it should display cust_id as per limit
> Actual result :
> In CarbonData:
> "+-------+--+
> | a |
> +-------+--+
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> | NULL |
> +-------+--+
> 10 rows selected (0.22 seconds)"
> In presto:
> " a
> ------
> 8999
> 9000
> 9001
> 9002
> 9003
> 9004
> 9005
> 9006
> 9007
> 9008
> (10 rows)
> Query 20170420_071958_00026_hd7jy, FINISHED, 1 node
> Splits: 18 total, 18 done (100.00%)
> 0:00 [2.01K rows, 1.97KB] [8.2K rows/s, 8.02KB/s]"
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