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Month interval bug

From: "Andrew V(dot) Gromozdin" <ag(at)dataforce(dot)net>
To: pgsql-bugs(at)postgresql(dot)org
Subject: Month interval bug
Date: 1999-10-01 13:59:34
Message-ID: 37F4BE46.ED099D96@dataforce.net (view raw or flat)
Thread:
Lists: pgsql-bugs
============================================================================
                        POSTGRESQL BUG REPORT TEMPLATE
============================================================================


Your name               :       Andrew V. Gromozdin
Your email address      :       ag(at)df(dot)ru


System Configuration
---------------------
  Architecture (example: Intel Pentium)         : Intel Pentium

  Operating System (example: Linux 2.0.26 ELF)  : Linux 2.0.38 ELF

  PostgreSQL version (example: PostgreSQL-6.4.2)  :   PostgreSQL-6.4.2

  Compiler used (example:  gcc 2.8.0)           : gcc 2.7.2.3


Please enter a FULL description of your problem:
------------------------------------------------


QUERY: select '09/01/1999 00:00:01.00 MSD'::datetime +
'1month'::timespan as err
or_date;

error_date                       
---------------------------------
Fri\ Oct\ 01\ 00:00:01\ 1999\ MSD
(1 row)

QUERY: select '09/01/1999 00:00:01.00 MSD'::datetime +
'2month'::timespan as err
or_date;

error_date                       
---------------------------------
Sun\ Oct\ 31\ 23:00:01\ 1999\ MSK
(1 row)

QUERY: select '09/01/1999 00:00:01.00 MSD'::datetime +
'3month'::timespan as err
or_date;

error_date                       
---------------------------------
Tue\ Nov\ 30\ 23:00:01\ 1999\ MSK
(1 row)


QUERY: select '09/01/1999 00:00:01.00 MSD'::datetime +
'4month'::timespan as err
or_date;

error_date                       
---------------------------------
Fri\ Dec\ 31\ 23:00:01\ 1999\ MSK
(1 row)

QUERY: select '09/01/1999 00:00:01.00 MSD'::datetime +
'5month'::timespan as err
or_date;

error_date                       
---------------------------------
Mon\ Jan\ 31\ 23:00:01\ 2000\ MSK
(1 row)



Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible: 
----------------------------------------------------------------------

run this query from psql



If you know how this problem might be fixed, list the solution below:
---------------------------------------------------------------------

I think it's because of unnormal defined MONTH interval

-- 
 Sincerely Your 
   Andrew V. Gromozdin, DataForce ISP, Moscow, Russia

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Subject: Re: [GENERAL] ODBC-client->Linux-server: datatype boolean not recognized?
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