Обсуждение: OSS RDBMS Features Compared
Hi *,
for a migration project from MS SQL to some Open Source RDBMS we
have to evaluate the possible targets.
Since we expect this comparison to be of interest for several people
and projects out there, we post our currend findings with request
for feedback and comments. We will fold all additional information
into our document and post it again.
With this comparison we are definitely not making a statement about
one RDBMS being better than another. We have found and we are convinced
that there is no evidence at all to prefere one of them in general.
The purpose of this comparison is to find the best fit for a given
situation.
Attached you find a PDF document, I will send the OpenOffice file
for cooperative work upon request.
Yours faithfully,
Sebastian Hetze
--
Sebastian Hetze Linux Information Systems AG
Fon +49 (0)30 72 62 38-0 Ehrenbergstr. 19
S.Hetze@Linux-AG.com Fax +49 (0)30 72 62 38-99 D-10245 Berlin
Linux is our Business. ____________________________________ www.Linux-AG.com __
Вложения
Wow, this is really good. I am in the midst of doing the same thing
and will contribute directly as comparison features are uncovered.
Here's one thing: You say that MySQL does not support transactions
but it does now with InnoDB.
Steve Orr
-----Original Message-----
From: Sebastian Hetze [mailto:s.hetze@linux-ag.de]
Sent: Friday, August 23, 2002 10:53 AM
To: pgsql-general@postgresql.org
Subject: [GENERAL] OSS RDBMS Features Compared
Hi *,
for a migration project from MS SQL to some Open Source RDBMS we
have to evaluate the possible targets.
Since we expect this comparison to be of interest for several people
and projects out there, we post our currend findings with request
for feedback and comments. We will fold all additional information
into our document and post it again.
With this comparison we are definitely not making a statement about
one RDBMS being better than another. We have found and we are convinced
that there is no evidence at all to prefere one of them in general.
The purpose of this comparison is to find the best fit for a given
situation.
Attached you find a PDF document, I will send the OpenOffice file
for cooperative work upon request.
Yours faithfully,
Sebastian Hetze
--
Sebastian Hetze Linux Information Systems AG
Fon +49 (0)30 72 62 38-0 Ehrenbergstr. 19
S.Hetze@Linux-AG.com Fax +49 (0)30 72 62 38-99 D-10245 Berlin
Linux is our Business. ____________________________________ www.Linux-AG.com
__
On Fri, 23 Aug 2002, Orr, Steve wrote: > Wow, this is really good. I am in the midst of doing the same thing > and will contribute directly as comparison features are uncovered. > Here's one thing: You say that MySQL does not support transactions > but it does now with InnoDB. Right, so MySQL doesn't suppor ttranscations, it only supports the abilty to piggy-back over other DBs that do ... no? :) > > Steve Orr > > > -----Original Message----- > From: Sebastian Hetze [mailto:s.hetze@linux-ag.de] > Sent: Friday, August 23, 2002 10:53 AM > To: pgsql-general@postgresql.org > Subject: [GENERAL] OSS RDBMS Features Compared > > > Hi *, > > for a migration project from MS SQL to some Open Source RDBMS we > have to evaluate the possible targets. > > Since we expect this comparison to be of interest for several people > and projects out there, we post our currend findings with request > for feedback and comments. We will fold all additional information > into our document and post it again. > > With this comparison we are definitely not making a statement about > one RDBMS being better than another. We have found and we are convinced > that there is no evidence at all to prefere one of them in general. > The purpose of this comparison is to find the best fit for a given > situation. > > Attached you find a PDF document, I will send the OpenOffice file > for cooperative work upon request. > > Yours faithfully, > > Sebastian Hetze > -- > Sebastian Hetze Linux Information Systems AG > Fon +49 (0)30 72 62 38-0 Ehrenbergstr. 19 > S.Hetze@Linux-AG.com Fax +49 (0)30 72 62 38-99 D-10245 Berlin > Linux is our Business. ____________________________________ www.Linux-AG.com > __ > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org >
<GRIN> Transactions do seem to be an afterthought. I'm kind of concerned that Heikki Tuuri is Innobase or a one man show. Does anyone know the number of engineers actually working on on InnoDB? -----Original Message----- From: Marc G. Fournier [mailto:scrappy@hub.org] Sent: Friday, August 23, 2002 12:37 PM To: Orr, Steve Cc: 'Sebastian Hetze'; pgsql-general@postgresql.org Subject: Re: [GENERAL] OSS RDBMS Features Compared On Fri, 23 Aug 2002, Orr, Steve wrote: > Wow, this is really good. I am in the midst of doing the same thing > and will contribute directly as comparison features are uncovered. > Here's one thing: You say that MySQL does not support transactions > but it does now with InnoDB. Right, so MySQL doesn't suppor ttranscations, it only supports the abilty to piggy-back over other DBs that do ... no? :) > > Steve Orr > > > -----Original Message----- > From: Sebastian Hetze [mailto:s.hetze@linux-ag.de] > Sent: Friday, August 23, 2002 10:53 AM > To: pgsql-general@postgresql.org > Subject: [GENERAL] OSS RDBMS Features Compared > > > Hi *, > > for a migration project from MS SQL to some Open Source RDBMS we > have to evaluate the possible targets. > > Since we expect this comparison to be of interest for several people > and projects out there, we post our currend findings with request > for feedback and comments. We will fold all additional information > into our document and post it again. > > With this comparison we are definitely not making a statement about > one RDBMS being better than another. We have found and we are convinced > that there is no evidence at all to prefere one of them in general. > The purpose of this comparison is to find the best fit for a given > situation. > > Attached you find a PDF document, I will send the OpenOffice file > for cooperative work upon request. > > Yours faithfully, > > Sebastian Hetze > -- > Sebastian Hetze Linux Information Systems AG > Fon +49 (0)30 72 62 38-0 Ehrenbergstr. 19 > S.Hetze@Linux-AG.com Fax +49 (0)30 72 62 38-99 D-10245 Berlin > Linux is our Business. ____________________________________ www.Linux-AG.com > __ > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org > ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html
On Fri, 23 Aug 2002, Sebastian Hetze wrote: > With this comparison we are definitely not making a statement about > one RDBMS being better than another. We have found and we are convinced > that there is no evidence at all to prefere one of them in general. > The purpose of this comparison is to find the best fit for a given > situation. Sebastian, This looks good. One technical note. This draft says that Postgres doesn't support "JOIN USING", but I believe it does. It's documented here: http://www.postgresql.org/idocs/index.php?queries-table-expressions.html (and I've used it myself). Also, a minor typo: "dokumentation" should be "documentation". -mark http://mark.stosberg.com/