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https://issues.apache.org/jira/browse/CARBONDATA-997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16044370#comment-16044370 ]
Jatin edited comment on CARBONDATA-997 at 6/9/17 12:42 PM:
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This bug is Invalid as presto doesn't support order by with column name having a selection of same column twice or more. i.e why it throws column is ambiguous. The same issue occurs when selecting it from hive.
Instead, we can create an alias for that column as
select BIGINT_COLUMN1,BIGINT_COLUMN1 as newBigInt from UNIQDATA where DECIMAL_COLUMN1<=BIGINT_COLUMN1 order by BIGINT_COLUMN1;
was (Author: jatin demla):
This bug is Invalid as presto doesnot support order by with column name having selection of same column twice or more. i.e why it throws column is ambiguous.
Instead we can create an alias for that column as
select BIGINT_COLUMN1,BIGINT_COLUMN1 as newbig from UNIQDATA where DECIMAL_COLUMN1<=BIGINT_COLUMN1 order by BIGINT_COLUMN1;
> Correct result does not display in presto integration as compare to CarbonData
> ------------------------------------------------------------------------------
>
> Key: CARBONDATA-997
> URL:
https://issues.apache.org/jira/browse/CARBONDATA-997> Project: CarbonData
> Issue Type: Bug
> 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
>
>
> Correct result does not display in presto integration as compare to CarbonData
> 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 BIGINT_COLUMN1, BIGINT_COLUMN1 from UNIQDATA where DECIMAL_COLUMN1<=BIGINT_COLUMN1 order by BIGINT_COLUMN1
> Actual result :
> In CarbonData:
> "| 123372038849 | 123372038849 |
> | 123372038850 | 123372038850 |
> | 123372038851 | 123372038851 |
> | 123372038852 | 123372038852 |
> | 123372038853 | 123372038853 |
> +-----------------+-----------------+--+
> 2,000 rows selected (1.087 seconds)
> "
> In presto:
> "Query 20170420_091614_00065_hd7jy failed: line 1:100: Column 'bigint_column1' is ambiguous
> select BIGINT_COLUMN1, BIGINT_COLUMN1 from UNIQDATA where DECIMAL_COLUMN1<=BIGINT_COLUMN1 order by BIGINT_COLUMN1"
> Expected result: it should display the same result as showing in CarbonData.
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