GitHub user sujith71955 opened a pull request:
https://github.com/apache/incubator-carbondata/pull/169
[CARBONDATA-250] Filter result is not proper when Double data type values
with 0.0 and -0.0 will be used.
[**Problem**]
Equals filter query where -0.0 is used in filter model was not giving
proper result since the system was comparing double value 0.0 and -0.0 as
different and resultset was getting changed.
eg: select log(c4_double,1) from Test_Boundary1 where log(c4_double,1)= -0.0
[**Solution**]
System has to compare double values for its equality and also it will
preserve the -0.0 and 0.0 equality as same == operator ,also preserve NaN
equality check as per java.lang.Double.equals()
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sujith71955/incubator-carbondata
master_DoubleTypeEquals
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-carbondata/pull/169.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #169
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commit 6b7c39ccb73d84cf2d5943e0542077d26c1a5e87
Author: Venkata Ramana G <[email protected]>
Date: 2016-09-17T16:38:11Z
[CARBONDATA-250] Filter result is not proper when Double data type values
with 0.0 and -0.0 will be used.
[Description] This method will compare double values for its equality and
also it will preserve the -0.0 and 0.0 equality as per == ,also preserve NaN
equality check as per java.lang.Double.equals()
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