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https://issues.apache.org/jira/browse/CASSANDRA-11233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Walkowicz resolved CASSANDRA-11233.
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Resolution: Not A Problem
Precision Can Be set within cqlshrc:
Example:
[ui]
float_precision=12
> COPY TO Column of Type Double Precision gets Truncated to lesser precision
> ----------------------------------------------------------------------------
>
> Key: CASSANDRA-11233
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11233
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Environment: [cqlsh 5.0.1 | Cassandra 2.1.11.908 | DSE 4.8.2 | CQL
> spec 3.2.1 | Native protocol v3]
> Reporter: Jason Walkowicz
> Labels: cqlsh
>
> I am copying a table between two exact table configs but different names with
> the CQLSH COPY command.
> Example:
> COPY "my"."data"(number) TO 'export.csv';
> COPY "my"."datacopy"(number) FROM 'export.csv';
> The column i'm copying TO and FROM is of type double. The problem is it
> appears that the copy is truncating the precision of the column.
> For example:
> Original Data:
> 5.084936038014788E8
> After Copy
> 5.0849E8
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