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Re: pgadmin error

From: Dave Page <dpage(at)pgadmin(dot)org>
To: Charlie Holleran <charles(dot)holleran(at)shiftenergy(dot)com>
Cc: pgadmin-hackers(at)postgresql(dot)org
Subject: Re: pgadmin error
Date: 2012-05-17 20:45:50
Message-ID: CA+OCxowf-bHv_e-3Ft98cuJAsmNG9BXyN=rOrnbnv8Nf8md7TA@mail.gmail.com (view raw or flat)
Thread:
Lists: pgadmin-hackers
HI

Can I get the raw data for the test case please (ideally as a set of
INSERT statements)?

Also, what happens if you INSERT/SELECT the same data using psql?

On Wed, May 16, 2012 at 10:24 PM, Charlie Holleran
<charles(dot)holleran(at)shiftenergy(dot)com> wrote:
> Hi Dave
>
> Tried some more queries to qualify the rounding problem accessing data in
> pgadmin.  Not quite what was expected.  Hmmm...
>
> Edit view brings back the values such as 8.53639e+06.
>
> What has been stored in the table are numbers in increasing value.
>
> <test_query>
>
> SELECT col1, col2, date_observed,
>  rt_value v0, rt_value::TEXT v1, to_char(rt_value, '999999999') v2,
>  rt_value::NUMERIC v3, rt_value::NUMERIC::TEXT v4,
> to_char(rt_value::NUMERIC, '999999999') v5,
>  rt_value::double precision v6, rt_value::double precision::TEXT v7,
> to_char(rt_value::double precision, '999999999') v8
> FROM tbla
> WHERE (col1,col2) = ( (-1465867942,-3248196) )
> AND date_observed >= '9-May-2012 23:57'
> AND date_observed < '10-May-2012'
> ORDER BY col1, col2, date_observed
> ;
>
> </test_query>
>
> <results>
>
> -1465867942;-3248196;"2012-05-09 23:57:00-03";8.53639e+06;"8.53639e+06";"
> 8536388";8536390;"8536390";"   8536390";8536388;"8536388";"   8536388"
> -1465867942;-3248196;"2012-05-09 23:58:00-03";8.5364e+06;"8.5364e+06";"
> 8536396";8536400;"8536400";"   8536400";8536396;"8536396";"   8536396"
> -1465867942;-3248196;"2012-05-09 23:59:00-03";8.5364e+06;"8.5364e+06";"
> 8536404";8536400;"8536400";"   8536400";8536404;"8536404";"   8536404"
>
> </results>
>
> <table_snippet>
>
> CREATE TABLE tbldaq_adb
> (
>  id bigserial NOT NULL,
>  col1 integer NOT NULL,
>  col2 integer NOT NULL,
>  date_observed timestamp with time zone NOT NULL,
>  rt_value real NOT NULL,
> );
>
> </table_snippet>
>
> Charlie
>
>
>
> --------------------------------------------------
> From: "Dave Page" <dpage(at)pgadmin(dot)org>
> Sent: Wednesday, May 16, 2012 2:51 PM
> To: "Charlie Holleran" <charles(dot)holleran(at)shiftenergy(dot)com>
> Cc: <pgadmin-hackers(at)postgresql(dot)org>
> Subject: Re: [pgadmin-hackers] pgadmin error
>
>
>> On Wed, May 16, 2012 at 10:04 AM, Charlie Holleran
>> <charles(dot)holleran(at)shiftenergy(dot)com> wrote:
>>>
>>> Is there a way to configure the JDBC driver that pgadmin uses to access
>>> the
>>> db's?  I'm using pg's postgresql-8.4-701.jdbc4.jar in my code and I get
>>> the
>>> correct values from the db.  But pgadmin does not get the correct values
>>> back.  pgadmin is rounding real's to 6 significant digits, independent of
>>> the magnitude of the value.  real's obviously have an issue with
>>> resolution
>>> as the magnitude of the number increases.  But this pgadmin issue is not
>>> magnitude dependent.  Second the real datatype issue loses resolution in
>>> power of 2's.  pgadmin is losing in the power of 10's.  It seems like a
>>> string parsing issue in the jdbc that only parses the first 6 digits.
>>>
>>> So I'd like to configure pgadmin to use the same jdbc driver as my code.
>>> Which works.  Where can I set the driver for pgadmin?
>>
>>
>> pgAdmin isn't a Java app. It's written in C++ and uses libpq to access
>> the server.
>>
>> Where in pgAdmin do you see the rounding? (query tool, edit grid
>> or...). Can you provide a self contained test case?
>>
>>
>> --
>> Dave Page
>> Blog: http://pgsnake.blogspot.com
>> Twitter: @pgsnake
>>
>> EnterpriseDB UK: http://www.enterprisedb.com
>> The Enterprise PostgreSQL Company
>>
>



-- 
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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