Analysis of open source database management system PostgreSQL and other products in the PostgreSQL ecosystem. Related subjects include:

May 22, 2009

Yet more on MySQL forks and storage engines

The issue of MySQL forks and their possible effect on closed-source storage engine vendors continues to get attention.  The underlying question is:

Suppose Oracle wants to make life difficult for third-party storage engine vendors via its incipient control of MySQL?  Can the storage engine vendors insulate themselves from this risk by working with a MySQL fork?

Read more

April 20, 2009

First thoughts on Oracle acquiring Sun

More later.  I have a radio interview in a few minutes on a very different subject.

April 2, 2009

Ingres update

I talked with Ingres today. Much of the call was fluff — open-source rah-rah, plus some numbers showing purported success, but so finely parsed as to be pretty meaningless. (To Ingres’ credit, they did offer to let me talk w/ their CFO, even if they offered no promises as to whether he’d offer any more substantive information.) Highlights included: Read more

March 18, 2009

Database implications if IBM acquires Sun

Reported or rumored merger discussions between IBM and Sun are generating huge amounts of discussion today (some links below). Here are some quick thoughts around the subject of how the IBM/Sun deal — if it happens — might affect the database management system industry. Read more

December 29, 2008

ParAccel actually uses relatively little PostgreSQL code

I often find it hard to write about ParAccel’s technology, for a variety of reasons:

ParAccel is quick, however, to send email if I post anything about them they think is incorrect.

All that said, I did get careless when I neglected to doublecheck something I already knew. Read more

November 7, 2008

Big scientific databases need to be stored somehow

A year ago, Mike Stonebraker observed that conventional DBMS don’t necessarily do a great job on scientific data, and further pointed out that different kinds of science might call for different data access methods. Even so, some of the largest databases around are scientific ones, and they have to be managed somehow. For example:

Long-term, I imagine that the most suitable DBMS for these purposes will be MPP systems with strong datatype extensibility — e.g., DB2, PostgreSQL-based Greenplum, PostgreSQL-based Aster nCluster, or maybe Oracle.

September 29, 2008

Has there been any progress on SAP over Postgres?

Peter Eisentraut discouragingly reported in January:

What I hear from my acquaintances at SAP, however, is this:

  • SAP doesn’t need fancy database features, since the software doesn’t use them.
  • Those who don’t want to buy Oracle can use MaxDB; it’s free.
  • PostgreSQL doesn’t support in-place upgrades, which makes it unsuitable for multiple terabyte installations typically used by SAP customers.
  • Has anything changed since then?

    And as a trivia challenge, does anybody recognize my science fiction reference in the comment thread there? :) Hint: The dialogue referenced did not occur on the planet Arrakis.

    September 13, 2008

    Top DBMS on Linux

    I was looking up George Crump’s blogs in connection with his recent post on SSDs, and I stumbled upon one that outlines at great length what features Linux backup systems should have. I won’t claim to have read it word for word, but what did catch my eye were a couple of comments on DBMS market share, which boiled down to:

    1. Oracle
    2. MySQL
    3. PostgreSQL

    Read more

    September 4, 2008

    Mike Stonebraker’s counterarguments to MapReduce’s popularity

    In response to recent posting I’ve done about MapReduce, Mike Stonebraker just got on the phone to give me his views. His core claim, more or less, is that anything you can do in MapReduce you could already do in a parallel database that complies with SQL-92 and/or has PostgreSQL underpinnnings. In particular, Mike says: Read more

    August 25, 2008

    Greenplum is in the big leagues

    After a March, 2007 call, I didn’t talk again with Greenplum until earlier this month. That changed fast. I flew out to see Greenplum last week and spent over a day with president/co-founder Scott Yara, CTO/co-founder Luke Lonergan, marketing VP Paul Salazar, and product management/marketing director Ben Werther. Highlights – besides some really great sushi at Sakae in Burlingame – start with an eye-opening set of customer proof points, such as: Read more

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