Exception Error

Martin Kersten martin.kersten at cwi.nl
Thu Apr 7 12:48:53 CEST 2016


Corr() is *not* a predefined operation

On 07/04/16 12:47, Martin Kersten wrote:
> Hi
>
> Corr() is a predefined operation in MonetDB/SQL.
> There are functional difference between the two systems you are comparing.
> See:
> https://www.monetdb.org/Documentation/Manuals/SQLreference/Features/Compability
>
> regards, Martin
>
> On 07/04/16 12:43, Erie, Rob wrote:
>> I am in the process of evaluating databases for analysis at my organization.  I have installed MonetDB and loaded some data.  I was attempting to compare results both in performance and accuracy between MySQL and MonetDB.  I have been receiving Overflow in
>> Calculation errors from MonetDB.  I am a total novice with MonetDB.
>>
>> Here is the information about my system:
>> Red Hat Enterprise Linux Server release 7.2 (Maipo) (Linux 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux)
>> MySQL Server version: 5.7.11-log MySQL Community Server
>> Java version "1.8.0_74"; Java(TM) SE Runtime Environment (build 1.8.0_74-b02); Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode).
>> Apache Tomcat 7.0.54
>> Welcome to mclient, the MonetDB/SQL interactive terminal (Jul2015-SP3)
>> Database: MonetDB v11.21.17 (Jul2015-SP3), 'mapi:monetdb://ip-10-153-0-5.ec2.internal:50000/set_mktng'
>>
>> Issue Description:  I would like to know the correlation between two variables group by a variable.
>>
>> SQL:
>> select milageRange, sys.corr(numberOfTheseParts,avgHomeValue) FROM aPartsByZipRange INNER JOIN avgHomeValueZipPeriod ON zipCode = zip where numberOfTheseParts <> 0 and avgHomeValue <>0 group by milageRange;
>>
>> Error:
>> TypeException:user.s78_2[44]:'aggr.subcorr' undefined in:     X_75:bat[:any,:int] := aggr.subcorr(X_72:bat[:oid,:int],X_74:bat[:oid,:int],X_67:bat[:oid,:oid],r1_67:bat[:oid,:oid],true:bit);
>> program contains errors
>>
>>
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