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@jack86596 jack86596 commented Oct 8, 2021

Why is this PR needed?

Currently when create carbon hive table, if data type is float, will convert to double type. This means all float data will be stored as double.
In CTAS secnario, if source table column is float type, the data in newly created carbon table will be incorrect.
Reproduce steps:
CREATE TABLE p1(f float) stored as parquet;
insert into table p1 select 12.36;
create table carbon1 stored as carbondata as select * from p1;
select * from carbon1;
Result:
5.410467587E-315

What changes were proposed in this PR?

Carbon should support store float datatype directly. Handle float type in read and write logic.

Does this PR introduce any user interface change?

  • No

Is any new testcase added?

  • Yes

@CarbonDataQA2
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Build Failed with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/429/

@CarbonDataQA2
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Build Failed with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6039/

@CarbonDataQA2
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Build Failed with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4294/

@CarbonDataQA2
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Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6041/

@CarbonDataQA2
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Build Failed with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4297/

@CarbonDataQA2
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Build Success with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/431/

@jack86596
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retest this please

@CarbonDataQA2
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Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6048/

@CarbonDataQA2
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Build Success with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4303/

@CarbonDataQA2
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Build Success with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/437/

@kunal642
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please rebase

@kunal642
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@akashrn5 please check once

@vikramahuja1001
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please rebase @jack86596

@CarbonDataQA2
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Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6115/

@CarbonDataQA2
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Build Success with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4372/

@CarbonDataQA2
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Build Failed with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/505/

@jack86596
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retest this please

@CarbonDataQA2
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Build Success with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4373/

@CarbonDataQA2
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Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6116/

@CarbonDataQA2
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Build Success with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/506/

@jack86596
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@vikramahuja1001 @kunal642 rebased, please review, thanks.

@CarbonDataQA2
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Build Success with Spark 2.3.4, Please check CI http://121.244.95.60:12602/job/ApacheCarbonPRBuilder2.3/6121/

@CarbonDataQA2
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Build Success with Spark 2.4.5, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_2.4.5/4378/

@CarbonDataQA2
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Build Success with Spark 3.1, Please check CI http://121.244.95.60:12602/job/ApacheCarbon_PR_Builder_3.1/511/

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4 participants