Re: Timestamp Question

From: "Dario V(dot) Fassi" <software(at)sistemat(dot)com(dot)ar>
To: pg(at)fastcrypt(dot)com
Cc: Greg Markham <gmarkham(at)markhamdirect(dot)com>, "pgsql-jdbc(at)postgresql(dot)org" <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: Timestamp Question
Date: 2004-07-11 19:18:44
Message-ID: 40F19294.8090700@sistemat.com.ar
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Dave Cramer wrote:

>the real question is where do you get microsecond values from in java,
>and are they real? In other words, if you are getting system time in
>microseconds ( if that's even possible ) it will take you a few more
>microseconds to insert it.
>
>Dave
>
>
Dave, it's true that in Java and PC hardware almost microseconds is the
max time discrimination possible.
But re-read my post (and excuse my horrible English),
I say that would help a lot if the microseconds part of a timestamp will
be zero padded to a minimum length of 5 or 6 digits.

Like:

"then most databases can take 2004-07-10 12:59:59.123 as 2004-07-10 12:59:59.123000 "

This behavior help is cross (vendor) database operations .

Dario.

>On Sat, 2004-07-10 at 13:20, Dario V. Fassi wrote:
>
>
>>Greg Markham wrote:
>>
>>
>>
>>>I have searched the archives and not found and answer to this question:
>>>
>>>I am trying to use a Java Timestamp object to create a Postgresql
>>>Timestamp(6) field. I can insert a Timestamp but it only goes to the
>>>millisecond(2004-07-10 12:59:59.123) I need it to the microsecond
>>>(2004-07-10 12:59:59.123456). Is there a way to do this?
>>>
>>>- Greg Markham
>>>
>>>
>>I have the same problem, and It's very molest in cross-dabase operations
>>(read in one and write in another vendor db).
>>
>>A workaround to this problem is create tables using "TIMESTAMP WITHOUT
>>TIMEZONE", then most databases can take 2004-07-10 12:59:59.123 as
>>2004-07-10 12:59:59.123000 , but the real value could be 2004-07-10
>>12:59:59.000123.
>>
>>I think that If the microseconds come zero padded , simplify many
>>things, even insert TIMESTAMP WITH TIMEZONE values on other databases
>>where timestamps is always represented in Local time (without timezone).
>>
>>Dario Fassi.
>>
>>
>>

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