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https://issues.apache.org/jira/browse/SPARK-20786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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caoxuewen updated SPARK-20786:
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Summary: Improve ceil and floor handle the value which is not expected
(was: Improve ceil handle the value which is not expected)
> Improve ceil and floor handle the value which is not expected
> -------------------------------------------------------------
>
> Key: SPARK-20786
> URL: https://issues.apache.org/jira/browse/SPARK-20786
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: caoxuewen
>
> spark-sql>SELECT ceil(1234567890123456);
> 1234567890123456
> spark-sql>SELECT ceil(12345678901234567);
> 12345678901234568
> spark-sql>SELECT ceil(123456789012345678);
> 123456789012345680
> when the length of the getText is greater than 16. long to double will be
> precision loss.
> but mysql handle the value is ok.
> mysql> SELECT ceil(1234567890123456);
> +------------------------+
> | ceil(1234567890123456) |
> +------------------------+
> | 1234567890123456 |
> +------------------------+
> 1 row in set (0.00 sec)
> mysql> SELECT ceil(12345678901234567);
> +-------------------------+
> | ceil(12345678901234567) |
> +-------------------------+
> | 12345678901234567 |
> +-------------------------+
> 1 row in set (0.00 sec)
> mysql> SELECT ceil(123456789012345678);
> +--------------------------+
> | ceil(123456789012345678) |
> +--------------------------+
> | 123456789012345678 |
> +--------------------------+
> 1 row in set (0.00 sec)
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