Thread

  1. Better Features document?

    Joel Burton <jburton@scw.org> — 2001-04-07T19:52:00Z

    One thing that confused me when I started seriously looking at PostgreSQL
    was the features it had relative to other competitors. We have so many
    powerful features that are often underused by new users:
    
      * procedural languages
      * triggers
      * rules
      * views
      * custom aggregate functions
      * ... and more
    
    and so on. The documentation does a good job (& gets better all the
    time!) at explaining this, but many users never read that far into the
    documentation, and, of course, many people never get to the documentation
    at all -- they're evaluating software by a 10-minute glance through the
    web site.
    
    We have a features document at
    
       http://www.postgresql.org/features.html
    
    but this covers the architecture of the system (postgres / postmaster,
    etc), and very little about some of our other competitive advantages.
    
    My fear is that users & potential users come to PG w/o learning what a
    view is, how triggers can be helpful in designing database systems, why
    custom aggregates are so great, etc. (Those of us w/CS backgrounds do well
    to remember how many web database designers don't have that background!)
    
    Therefore, people compare us sometimes w/other database systems (mostly
    MySQL simply as 'MySQL seems faster and easier to install, but PostgreSQL
    has some features, like transactions, that may be useful to complicated
    databases', completely missing how many PG features are important to
    everyone that is designing databases, simple or large.
    
    I started writing a 'Features+' document a few months ago, but it got sat
    aside during a busy work time. I'd like to restart that work.
    
    I don't want to recreate the manuals -- I envision something like a 5-page
    'product datasheet' that explains just enough about what a trigger is so
    that users have no excuse for not digging into that chapter, and that
    people understand how fantasic procedural languages are.
    
    Before I start digging into that, does anyone know if there
    exists a short- or medium- length (2-5 p) document that explains, for
    ordinary database mortals, about the sophisticated features of PG?
    
    Does anyone want to help put this together?
    
    
    -- 
    Joel Burton   <jburton@scw.org>
    Director of Information Systems, Support Center of Washington
    
    
    
  2. Re: Better Features document?

    Bruce Momjian <pgman@candle.pha.pa.us> — 2001-04-08T04:19:51Z

    Sounds great.
    
    I have collected some comments from people about PostgreSQL vs. other
    databases at:
    
    	ftp://candle.pha.pa.us/pub/postgresql/comparison.mbox
    
    This may help.  You can also link to the docs and my book at:
    
    	http://www.postgresql.org/docs/awbook.html
    
    to give people more detailed information about the features.  I think
    such a page would be a great idea.  I can help too.
    
    > 
    > One thing that confused me when I started seriously looking at PostgreSQL
    > was the features it had relative to other competitors. We have so many
    > powerful features that are often underused by new users:
    > 
    >   * procedural languages
    >   * triggers
    >   * rules
    >   * views
    >   * custom aggregate functions
    >   * ... and more
    > 
    > and so on. The documentation does a good job (& gets better all the
    > time!) at explaining this, but many users never read that far into the
    > documentation, and, of course, many people never get to the documentation
    > at all -- they're evaluating software by a 10-minute glance through the
    > web site.
    > 
    > We have a features document at
    > 
    >    http://www.postgresql.org/features.html
    > 
    > but this covers the architecture of the system (postgres / postmaster,
    > etc), and very little about some of our other competitive advantages.
    > 
    > My fear is that users & potential users come to PG w/o learning what a
    > view is, how triggers can be helpful in designing database systems, why
    > custom aggregates are so great, etc. (Those of us w/CS backgrounds do well
    > to remember how many web database designers don't have that background!)
    > 
    > Therefore, people compare us sometimes w/other database systems (mostly
    > MySQL simply as 'MySQL seems faster and easier to install, but PostgreSQL
    > has some features, like transactions, that may be useful to complicated
    > databases', completely missing how many PG features are important to
    > everyone that is designing databases, simple or large.
    > 
    > I started writing a 'Features+' document a few months ago, but it got sat
    > aside during a busy work time. I'd like to restart that work.
    > 
    > I don't want to recreate the manuals -- I envision something like a 5-page
    > 'product datasheet' that explains just enough about what a trigger is so
    > that users have no excuse for not digging into that chapter, and that
    > people understand how fantasic procedural languages are.
    > 
    > Before I start digging into that, does anyone know if there
    > exists a short- or medium- length (2-5 p) document that explains, for
    > ordinary database mortals, about the sophisticated features of PG?
    > 
    > Does anyone want to help put this together?
    > 
    > 
    > -- 
    > Joel Burton   <jburton@scw.org>
    > Director of Information Systems, Support Center of Washington
    > 
    > 
    > ---------------------------(end of broadcast)---------------------------
    > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
    > 
    
    
    -- 
      Bruce Momjian                        |  http://candle.pha.pa.us
      pgman@candle.pha.pa.us               |  (610) 853-3000
      +  If your life is a hard drive,     |  830 Blythe Avenue
      +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
    
    
  3. Re: Better Features document?

    Roberto Mello <rmello@cc.usu.edu> — 2001-04-08T05:46:16Z

    On Sat, Apr 07, 2001 at 03:52:00PM -0400, Joel Burton wrote:
     
    > My fear is that users & potential users come to PG w/o learning what a
    > view is, how triggers can be helpful in designing database systems, why
    > custom aggregates are so great, etc. (Those of us w/CS backgrounds do well
    > to remember how many web database designers don't have that background!)
    
    	Wholeheartedly agreed! I see this happen many times here at our
    university. People look at PG's website, then look at MySQL's site and see
    MySQL's (very misleading) "benchmarks", and since they don't have the db
    background and are looking for an esay to use DB, they go with MySQL.
     
    > Does anyone want to help put this together?
    
    	Let me know how can I be of help. It should only take you one day to
    write a good document listing PG's features.
    
    	-Roberto
    -- 
    +----| http://fslc.usu.edu USU Free Software & GNU/Linux Club |------+
      Roberto Mello - Computer Science, USU - http://www.brasileiro.net 
           http://www.sdl.usu.edu - Space Dynamics Lab, Developer    
    Sorry, "Quit" not available in unregistered versions.
    
    
  4. www.postgresql.org down?

    Justin Clift <jclift@iprimus.com.au> — 2001-04-08T07:28:35Z

    Hi all,
    
    Is it just my route to the main webserver, or is the website at
    www.postgresql.org down?
    
    Can access the mirrors, but can't touch anything at the main PostgreSQL
    website.
    
    Rats, wanted to submit results of 7.1RC3 to Vince's database...
    
    Regards and best wishes,
    
    Justin Clift
    
    
  5. Re: [GENERAL] Better Features document?

    Peter Eisentraut <peter_e@gmx.net> — 2001-04-08T11:15:37Z

    Joel Burton writes:
    
    > I started writing a 'Features+' document a few months ago, but it got sat
    > aside during a busy work time. I'd like to restart that work.
    >
    > I don't want to recreate the manuals -- I envision something like a 5-page
    > 'product datasheet' that explains just enough about what a trigger is so
    > that users have no excuse for not digging into that chapter, and that
    > people understand how fantasic procedural languages are.
    
    If you can make it a little less than 5 pages (like 2), we can put it into
    the preface of the documentation.  I'd imagine it stuck somewhere near the
    following URL:
    
    http://www.de.postgresql.org/devel-corner/docs/postgres/preface.html
    
    (main web server down right now)
    
    You will notice that the section "What is PostgreSQL?" at the cited
    location is already a feeble attempt to be a feature advertisement.
    However, the set and the focus of the features have clearly changed over
    time, so it would be time to update this section.
    
    -- 
    Peter Eisentraut      peter_e@gmx.net       http://yi.org/peter-e/
    
    
    
  6. Re: Re: [GENERAL] Better Features document?

    Justin Clift <jclift@iprimus.com.au> — 2001-04-08T12:38:18Z

    Hi Joel,
    
    Since you've got a 5 page document already, maybe you'd like to put what
    you've got on the net somewhere (I can put it on techdocs.postgresql.org
    if you'd like), then massage it into shape for an updated 2 page intro
    Peter is suggesting?
    
    Don't want to lose 3 pages of what may just be really insightful
    work...  :-)
    
    Regards and best wishes,
    
    Justin Clift
    
    Peter Eisentraut wrote:
    <snip>
    > If you can make it a little less than 5 pages (like 2), we can put it into
    > the preface of the documentation.  I'd imagine it stuck somewhere near the
    > following URL:
    <snip>
    -- 
    "My grandfather once told me that there are two kinds of people: those
    who work and those who take the credit. He told me to try to be in the
    first group; there was less competition there."
         - Indira Gandhi
    
    
  7. Re: Better Features document?

    Vince Vielhaber <vev@michvhf.com> — 2001-04-08T12:44:01Z

    Great!  You guys do it and I'll put it on the website.
    
    Vince.
    
    
    On Sun, 8 Apr 2001, Bruce Momjian wrote:
    
    > Sounds great.
    >
    > I have collected some comments from people about PostgreSQL vs. other
    > databases at:
    >
    > 	ftp://candle.pha.pa.us/pub/postgresql/comparison.mbox
    >
    > This may help.  You can also link to the docs and my book at:
    >
    > 	http://www.postgresql.org/docs/awbook.html
    >
    > to give people more detailed information about the features.  I think
    > such a page would be a great idea.  I can help too.
    >
    > >
    > > One thing that confused me when I started seriously looking at PostgreSQL
    > > was the features it had relative to other competitors. We have so many
    > > powerful features that are often underused by new users:
    > >
    > >   * procedural languages
    > >   * triggers
    > >   * rules
    > >   * views
    > >   * custom aggregate functions
    > >   * ... and more
    > >
    > > and so on. The documentation does a good job (& gets better all the
    > > time!) at explaining this, but many users never read that far into the
    > > documentation, and, of course, many people never get to the documentation
    > > at all -- they're evaluating software by a 10-minute glance through the
    > > web site.
    > >
    > > We have a features document at
    > >
    > >    http://www.postgresql.org/features.html
    > >
    > > but this covers the architecture of the system (postgres / postmaster,
    > > etc), and very little about some of our other competitive advantages.
    > >
    > > My fear is that users & potential users come to PG w/o learning what a
    > > view is, how triggers can be helpful in designing database systems, why
    > > custom aggregates are so great, etc. (Those of us w/CS backgrounds do well
    > > to remember how many web database designers don't have that background!)
    > >
    > > Therefore, people compare us sometimes w/other database systems (mostly
    > > MySQL simply as 'MySQL seems faster and easier to install, but PostgreSQL
    > > has some features, like transactions, that may be useful to complicated
    > > databases', completely missing how many PG features are important to
    > > everyone that is designing databases, simple or large.
    > >
    > > I started writing a 'Features+' document a few months ago, but it got sat
    > > aside during a busy work time. I'd like to restart that work.
    > >
    > > I don't want to recreate the manuals -- I envision something like a 5-page
    > > 'product datasheet' that explains just enough about what a trigger is so
    > > that users have no excuse for not digging into that chapter, and that
    > > people understand how fantasic procedural languages are.
    > >
    > > Before I start digging into that, does anyone know if there
    > > exists a short- or medium- length (2-5 p) document that explains, for
    > > ordinary database mortals, about the sophisticated features of PG?
    > >
    > > Does anyone want to help put this together?
    > >
    > >
    > > --
    > > Joel Burton   <jburton@scw.org>
    > > Director of Information Systems, Support Center of Washington
    > >
    > >
    > > ---------------------------(end of broadcast)---------------------------
    > > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
    > >
    >
    >
    >
    
    -- 
    ==========================================================================
    Vince Vielhaber -- KA8CSH    email: vev@michvhf.com    http://www.pop4.net
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  8. Re: Re: Better Features document?

    Joel Burton <jburton@scw.org> — 2001-04-08T12:50:49Z

    Ok, so here's the draft I wrote a few months ago up the updated features
    document.
    
    --
    
    
    pg_advocates of the world, unite!
    
    As I've recommended it to other people, I've found myself at a loss to
    explain all of
    the features that recommend the system. Digging around, almost all of
    these can be
    identified through the various manuals and FAQs.
    
    I'm envisioning a document that could be posted on the postgresql.org web
    site
    that gives more information about the server's capabilities than the
    introductory
    information on the site, without having to dig around in different
    manuals. I think
    it shouldn't attempt to be completely comprehensive (many features are
    wonderful,
    but obscure for first-time buyers :-) ), but should list the features,
    along with
    a short explanation of what they mean and why they might be useful. With
    the explosion
    of new Unix/Linux users, I constant come across new database
    administrators that
    come from Windows-database backgrounds, and have no idea what a trigger
    is,
    let alone what our more unique features are, and how the might be helpful.
    
    I've written out the features I see, in some order, with some attempts
    at explanation.  I'd be grateful for any corrections or
    suggestions. Embedded throughout are XXX for areas that need immediate
    help; however, the entire document could use a critical eye for
    suggestions and improvements.
    
    At this point, its just a text document, but as it improves, I'll
    translate it into
    an attractive HTML document suitable for posting or framing.
    
    Suggestions/improvements should be sent to jburton@scw.org. I will
    post the list improved versions of the document.
    
    ----------------------------------------------------------
    
    PostgreSQL is the world's most advanced Open Source database server.
    
    
    -------------
    
    INSTALLATION:
    
    Supported Platforms:
       * AIX - IBM on AIX 3.2.5 or 4.x
       * BeOS - x86
       * Alpha - DEC Alpha AXP on Digital Unix 2.0, 3.2, 4.0
       * BSD44_derived - OSs derived from 4.4-lite BSD (NetBSD, FreeBSD)
       * BSDI - BSD/OS 2.x, 3.x, 4.x
       * HP-UX - HP PA-RISC on HP-UX 9.*, 10.*
       * IRIX - SGI MIPS on IRIX 5.3
       * Linux - Intel i86 Alpha SPARC PPC M68k
       * Mac OS X - PPC
       * SCO Unix - SCO 3.2v5 Unixware
       * Solaris - i386, SPARC
       * SunOS - SUN SPARC on SunOS 4.1.3
       * SVR4 - Intel x86 on Intel SVR4 and MIPS
       * Tru64 - Compaq Alpha
       * ultrix4 - DEC MIPS on Ultrix 4.4
       * UnixWare
       * Windows NT/2000 (using Cygwin)
       * (I got this list from the FAQ, is it missing anything?)
    
    Unsupported Platforms:   (previous versions have worked, not tested
    recently)
       * DG/UX - m88k
       * MkLinux - PPC750
       * NextStep - x86
       * QNX - x86
       * System V R4 - m88k MIPS
       * Ultrix - MIPS VAX
    
    Easy installation:
       * Uses standard configure and make options for building from source.
       * Binary RPMs are available for most popular Linux distributions.
       * Can be installed without root permissions.
       * Included in most popular Linux and BSD distributions
    
    -----------
    HISTORY, DEVELOPERS & LICENSE:
       * Descended from Ingres and Postgres, cutting-edge academic database
    projects
       * Maintained, improved, and supported by a stable Global Development
    Group, and a large number of contributors
       * Source code available for download, and anonymous CVS access is
    available
       * Licensed under BSD license, allowing truly free modifications and
    redistribution of binaries
    
    
    -----------
    DATA FEATURES
    
    Rich support for data types:
       * Includes most standard and exotic SQL92 and SQL3 data types,
    including INT, BOOL, CHAR, VARCHAR, DATE, INTERVAL, TIMESTAMP. 
       * Additional types for geometric constructs (points, lines, etc.),
    TCP/IP network addresses, Ethernet card IDs, and more.
       * New types can be defined, along with neccessary supporting functions
    and operators.
    
    Support for BLOB / Large Objects:
       * PostgreSQL supports storage of binary large objects, including
    pictures, sounds, or video.
       * These objects can be retrieved (in whole or part) by client
    applications.
    
    Multibyte and LOCALE-aware settings
       * For storage and ordering of international characters and character
    sets.
    
    Foreign key / Referential integrity support:
       * Supports CREATE TABLE ... FOREIGN KEY syntax for referential
    integrity
       * Supports different actions for updating and deleting, including
    cascading, restricting, and restoring to default or NULL values. These
    features are critical for data integrity in many applications.
       * Foreign keys can be detected by database modeling tools, such as
    Computer Associates' ERwin, to ease database design and documentation.
    
    -----------
    
    SQL FEATURES:
    
    SELECT FEATURES:
    
       * Support for standard SQL conditions, such as CASE WHEN THEN,
    COALESCE, and NULLIF.
       * Support for joins, including INNER, OUTER (LEFT and FULL) and NATURAL
    JOINS.
       * Support for subselects:
           * Subqueries are nested queries that allow complex questions to be
    answered entirely through the database
           * Using subqueries can simplify and speed up database applications
           * XXXAn example subquery?
       * Support for SELECT DISTINCT and SELECT DISTINCT ON ( column ), to
    show only unique rows, and matching data for unique values.
       * Full support for GROUP BY and aggregate (domain) functions, including
    COUNT(), SUM(), AVG(), MIN(), MAX(), STDDEV() and VARIANCE().
       * New aggregate functions can easily be created in C or any procedural
    language PostgreSQL supports.
       * Sub-selects in FROM clause, such as SELECT COUNT(x), AVG(x),
    SUM(x) FROM (SELECT SUM(weight) AS x FROM Items GROUP BY manufacturer) AS
    Items
       * Support for UNION and UNION ALL.
       * Support for extensions INTERSECTS and EXCEPT, which are used like
    UNION, to join two or more SELECT statements,
    but find only intersecting records or missing records.
       * Extensions for LIMIT and OFFSET to allow for the selection of any
    arbitrary number of records, ie SELECT * FROM Items
    ORDER BY cost LIMIT 5;
    
    
    OTHER SQL FEATURES:
    
    Procedural Languages:
       * Procedural languages can be used to create user-defined functions and
    procedures, and are used to create triggers.
       * PostgreSQL currently supports several procedural languages:
          * C    XXXIs it fair to call C a PL?
          * SQL
          * PL/PGSQL (very similar to Oracle's PL/SQL)
          * PL/Tcl
          * PL/Perl
          * PL/Python (alpha)
       * Procedural languages functions can be used by and defined by
    untrusted users.
    
    Comprehensive Library of Functions:
       * Hundreds of built-in functions in its library, including rich support
    for mathematical, date/time, and string manipulation.
       * Additional functions: ISBN/ISSN handling, SOUNDEX sounds-like
    matching
       * Support functions for full-text indexing
       * Online library of user functions at http://techdocs.postgresql.org
       * ODBC functions
    
    User-defined functions:
       * User defined functions allow designers to create new functions.
       * These can be programmed in C, or in any of the procedural languages
    PostgreSQL supports.
       * User-defined functions allow database designer to encapsulate
    business logic in the database, rather than in the front-end.
    
    Comprehensive operators:
       * Inequalities and logical conditions
       * Standard SQL LIKE matching and case-insensitive LIKE matching
       * Full regular expression matching and case-insensitive regular
    expression matching
       * Time/date and interval comparisons
       * Many more
       * New operators can be defined using procedures written in C or any of
    the procedural languages PostgreSQL supports.
    
    Views:
    Views are stored SQL SELECT statements that are used to abstract complex
    views. For example, a common operation
    that joins four tables, with subselects, a WHERE clause, an ORDER BY
    clause, etc., can be given
    the name EMPLOYEE_INFO, and treated as a virtual table--including (if
    appropriate)
    INSERTS, UPDATES, and DELETEs. This allow database users to work more
    easily with the data,
    and requires less sophistication in query writing for most users.
       * Supports views
    
    Triggers:
    Triggers are procedures that are called by the database on defined
    actions. For example, a trigger could be used to log every time a
    record in inserted or deleted to or from a table, or to update a field
    every time another field has been changed.
       * Supports triggers before and/or after actions
       * Supports triggers for every row or every action
       * Trigger functions can be written in C or any of the procedural
    languages PostgreSQL supports.
    
    Rules:
    Rules are an advanced feature of PostgreSQL that allows a database
    designer to substitute any
    SQL table operation (SELECT, INSERT, DELETE, etc.) for another
    operation. Rules can be used
    to return different sets based on permissions, turn an attempted update
    into a delete, etc.
    
    Transactions:
    Transactions allow all data modifications to be encapsulated in a
    transaction. This allows the
    database to rollback and restore all original data if there is an error in
    the transaction
    or if the database server crashes. Transactions are a critical feature for
    ensuring
    data integrity in many applications.
       * Support for COMMIT or ROLLBACK
       * Works transparently with transaction features of interface programs,
    such as Perl's DBI, Zope, JDBC and ODBC transactions, etc.
       * XXXSomeone want to explain MVCC for the masses?
    
    Inheritance:
       * XXXI never use this--anyone want to explain?
    
    
    -----------
    EXTENSIONS:
    
    Replication:
    
    Contact Management:
    
    (XXXI don't use either of these. Can anyone at pgsql inc, or anyone at
    all, provide some bullets of the advantages?)
    
    
    -----------
    
    DOCUMENTATION & SUPPORT: 
    
    Documentation:
       * Comes with four comprehensive manuals (online or in print formats)
       * Tutorial manual
       * Excellent commercial, full length book (available in print form, or
    online at http://www.postgresql.org/docs/awbook.html)
    
    Online support:
       * Support is available through 13 online discussion lists.
       * Comprehensive installation instructions and FAQ included in
    distribution.
       * Online resource listings at http://techdocs.postgresql.org
    
    Commercial contracts:
       * Commercial contracts are available from several companies, and
    consulting from hundreds of companies and independent consultants.
       * Commercially-packaged versions of PostgreSQL are available from
    GreatBridge LLC, http://www.greatbridge.org.
       
     
    -----------
    
    SERVER ADMINISTRATION:
    
    Backup and Recovery tools:
       * PostgreSQL includes a tool (pg_dump) to handle backup of all database
    data. These backups, which can be performed while the database is being
    used, are platform-independent, human-readable, and can be stored as tar
    archives or in compressed formats. 
       * Database can be restored as a whole, or (using
    pg_restore) selectively to recover individual database elements.
    
    Security:
       * PostgreSQL offers a user/group security model that can restrict
    operations by user and/or group.
       * Privileges can be assigned for viewing and modifying data.
       * Access to the database server itself can be restricted based on host,
    username, database.
       * Database passwords can be sent encrypted, and database connections
    can be encrypted using SSH or SSL.
    
    Temporary tables
       * Temporary tables (which can be created by CREATE TABLE or SELECT
    INTO) are automatically dropped at the end of a database connection.
       * Easier maintenance than removing normal table manually.
    
    GUI Administration:
       * pgaccess: a platform-independent Tcl/Tk program for database
    maintenance and report-writing
       * pgAdmin: a comprehensive, Windows-based PostgreSQL administration
    program
       * XXXAnd some web programs I don't know about
    
    -----------
    
    CLIENT INTERFACES
    
    Client programming languages/interfaces:
       * Perl (through Pg and DBD::Pg)
       * Python (through Pygres or PoPy)
       * PHP (support built-in to PHP)
       * Tcl
       * ODBC, and therefore many ODBC client programs, including Microsoft
    Access, StarOffice, Applix, etc.
       * JDBC (Java Database Connectivity)
       * C (through libpq and libpqeasy)
       * Can use embedded SQL statements in C
       * C++ (through libpq++)
       * Emacs LISP
       * R (Open Source statistical package)
       * Zope (Open Source web application server)
       * XXXand othhers, I'm sure--what's missing? ]
    
    Web Publishing Solutions:
    With its support for transactions, defined functions, and views,
    PostgreSQL offers web developers
    a safe and structured programming environment. Almost all web development
    systems that uses Perl,
    Python, ODBC, PHP, or Tcl can use PostgreSQL.
       * Zope
       * OpenACS, an Open Source port of ArsDigita's ACS
       * ColdFusion
       * Mason
       * EmbPerl
       * mod_perl and DBI
       * XXXAnd others, no doubt
       * Web groupware packages supporting PostgreSQL: Twig
    (www.screwdriver.net/twig), XXXand no doubt many others
    
    
    Query monitor:
       * Comes with psql, a featured-filled text console-based interactive
    query monitor.
          * Includes full support for history and history editing,
    customization, local/remote database access, and importing and exporting
    of data. 
       * In addition, graphic query monitors available for many operating
    systems and desktops, including Windows, KDE, and GNOME.
    
    Event notification 
       * LISTEN and NOTIFY can be used to pass messages or notify different
    clients of an event in the database.
       * Can be used to coordinate different front-end clients (even across
    different front-end systems).
    
    --------
    PERFORMANCE & STABILITY
    
    Performance:
       * Very competitive performance, especially for multi-user applications
    and larger databases.
       * Sophisticated locking models permits high scalability for concurrent
    writes and reads.
    
    Stability:
    [ any info on large dbs used by PG? ]
    
    
    ---------
    USERS
    
       * SourgeForge
          * Large open source database-backed collaborative web site
       * OpenACS
          * Fully open source version of ArsDigita's community-based web
    system, ACS
       * XXXBruce, surely you know of others.
    
    -----
    AND MORE
    
    And More (Optional Contributions)
    Distributed with PostgreSQL are many optional contributions, such as
    SOUNDEX() functions
    for 'sounds-like' string matching, full-text indexing, cryptographic hash
    functions (including
    SHA1 and MD5), user-handled long-term cooperative locking, ISBN/ISSN
    number types, and more. In
    addition, there are many additional functions that can be downloaded from
    web sites or from the
    PostgreSQL discussion lists.
    
    
    
    
     -- 
    Joel Burton   <jburton@scw.org>
    Director of Information Systems, Support Center of Washington
    
    
    
  9. Re: www.postgresql.org down?

    Vince Vielhaber <vev@michvhf.com> — 2001-04-08T12:53:09Z

    It's back.
    
    Vince.
    
    On Sun, 8 Apr 2001, Justin Clift wrote:
    
    > Hi all,
    >
    > Is it just my route to the main webserver, or is the website at
    > www.postgresql.org down?
    >
    > Can access the mirrors, but can't touch anything at the main PostgreSQL
    > website.
    >
    > Rats, wanted to submit results of 7.1RC3 to Vince's database...
    >
    > Regards and best wishes,
    >
    > Justin Clift
    >
    > ---------------------------(end of broadcast)---------------------------
    > TIP 5: Have you checked our extensive FAQ?
    >
    > http://www.postgresql.org/users-lounge/docs/faq.html
    >
    
    -- 
    ==========================================================================
    Vince Vielhaber -- KA8CSH    email: vev@michvhf.com    http://www.pop4.net
             56K Nationwide Dialup from $16.00/mo at Pop4 Networking
            Online Campground Directory    http://www.camping-usa.com
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    ==========================================================================
    
    
    
    
    
  10. Re: Better Features document?

    Joel Burton <jburton@scw.org> — 2001-04-08T13:06:43Z

    On Sun, 8 Apr 2001, Bruce Momjian wrote:
    
    > Sounds great.
    > 
    > I have collected some comments from people about PostgreSQL vs. other
    > databases at:
    > 
    > 	ftp://candle.pha.pa.us/pub/postgresql/comparison.mbox
    > 
    > This may help.  You can also link to the docs and my book at:
    > 
    > 	http://www.postgresql.org/docs/awbook.html
    > 
    > to give people more detailed information about the features.  I think
    > such a page would be a great idea.  I can help too.
    
    Thanks for the links. Your book, of course, is probably the first thing
    that new users should be reading; I added a link in the document.
    
    One area that you could help is the Who's Using PostgreSQL section.
    If this features document has a datasheet/sales tool feeling, I think it
    should provide some information about the scalability and real-world use
    of PG.
    
    I posted a draft start of the time to pgsql-docs.
    
    
    Thanks!
    
    -- 
    Joel Burton   <jburton@scw.org>
    Director of Information Systems, Support Center of Washington
    
    
    
  11. Re: Better Features document?

    Joel Burton <jburton@scw.org> — 2001-04-08T13:08:46Z

    On Sat, 7 Apr 2001, Roberto Mello wrote:
    
    > On Sat, Apr 07, 2001 at 03:52:00PM -0400, Joel Burton wrote:
    >  
    > 	Wholeheartedly agreed! I see this happen many times here at our
    > university. People look at PG's website, then look at MySQL's site and see
    > MySQL's (very misleading) "benchmarks", and since they don't have the db
    > background and are looking for an esay to use DB, they go with MySQL.
    > 
    > 	Let me know how can I be of help. It should only take you one day to
    > write a good document listing PG's features.
    
    
    I posted a draft to pgsql-docs this morning. It needs a critical eye for
    what may have been left out. It also needs some more coverage of
    PG-interfaces, especially in the web world. (You're involved in the
    OpenACS project, right? Perhaps you know of other things like that to
    cover.)
    
    Thanks for the enouragement,
    
    -- 
    Joel Burton   <jburton@scw.org>
    Director of Information Systems, Support Center of Washington
    
    
    
  12. Re: Better Features document?

    Vince Vielhaber <vev@michvhf.com> — 2001-04-08T13:19:41Z

    On Sun, 8 Apr 2001, Joel Burton wrote:
    
    > One area that you could help is the Who's Using PostgreSQL section.
    > If this features document has a datasheet/sales tool feeling, I think it
    > should provide some information about the scalability and real-world use
    > of PG.
    
    Have you seen the gallery?
    
                http://www.pgsql.com/user_gallery/
    
    Vince.
    -- 
    ==========================================================================
    Vince Vielhaber -- KA8CSH    email: vev@michvhf.com    http://www.pop4.net
             56K Nationwide Dialup from $16.00/mo at Pop4 Networking
            Online Campground Directory    http://www.camping-usa.com
           Online Giftshop Superstore    http://www.cloudninegifts.com
    ==========================================================================
    
    
    
    
    
  13. Re: Better Features document?

    anil <anil@awcoldstream.com> — 2001-04-08T16:41:52Z

    Hi,
    
    This could be a great document. I have been using postgres for four years on
    production system for few newspapers for article management, distribution,
    commercial advertising etc. I did not know some features exists on postgres.
    For dummies like me, this will help big time.
    
    anil
    
    
    Joel Burton wrote:
    
    > Ok, so here's the draft I wrote a few months ago up the updated features
    > document.
    >
    > --
    >