It'd probably be helpful to include this info in a document to go along
with the image.
On Mon, Mar 28, 2005 at 07:16:23PM +0400, Oleg Bartunov wrote:
> On Mon, 28 Mar 2005, Mark Woodward wrote:
> >>Hi there,
> >>while learning inkscape I did a sketch of picture describing
> >>history of relational databases. It's available from
> >Is there a direct line from INGRES to Postgres? I was under the impression
> >that Postgres is a "new" lineage started after INGRES sharing little or no
> No code sharing, but only Stonebraker and his ideas about extensibility,
> objects and lessons learned after Ingres, so it's named Postgres.
> >The line from Ingres through RDb, Oracle, to Informix seems to indicate a
> >lineage. Is there one? Is Oracle based, in some way, on INGRES?
> No, line just crossing Oracle which bought Rdb/VMS. I'll adjust picture.
> >IS there a relation between IBM System R and INGRES or is that just a
> >placement issue?
> No, I placed them close to underline their importance for relational
> >What is the raltionship between System R and SQL and DB2?
> Sure. System R was a research project of IBM
> SEQUEL is a language designed to work with data stored in System R.
> SEQUEL was renamed to SQL then because there was existed trademark.
> IBM developes SQL/DS database which then became DB2.
> >What does Agatha Christie have do do with anything? (Other than having
> >Hecule investigate the death of SCO.)
> "elephants can remember" - elephant here is a keyword
> IIRC, it was this proposal for postgresql logo
> We used jaguar(leopard) before (famous postgresql empowered).
> I don't remember who was the first author of Elephant logo.
> >While it is interesting, there seems to be implied connections by
> >proximity, and I'm not sure of the explicit connections by line. You'll
> >need some references.
> I tried to separate INGRES family by color (color hue)
> Bright red - is for IBM family (probably wrong color)
> Oracle is closer to IBM, because they both used SQL,
> while INGRES family use QUEL at the beginning.
> Ilustra was bought by Informix, which was bought by IBM and
> incorporated into DB2, that's why they are close.
> Illustra is a commercialized Postgres (1992), that's why there is line
> connecting them.
> Sybase (Sybase SQL Server) and MS SQL are close because until 1992 there
> was Sybase and license
> agreement with Microsoft, which ported Sybase to Windows NT. In 1993
> Microsoft rebranded Sybase and named MS SQL. Sybase in 1995 released v 11.0
> renamed them to ASE to be distinct from MS SQL.
> As I wrote, I'm not sure I got everything right, so any corrections are
> welcome. If you improve my picture (get .svg and inkscape), then I'd
> be glad to have it. The reason I made this picture not just learning
> inkscape (great program!), I tried to show the place of PostgreSQL
> between all major databases.
> Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
> Sternberg Astronomical Institute, Moscow University (Russia)
> Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
> phone: +007(095)939-16-83, +007(095)939-23-83
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> TIP 7: don't forget to increase your free space map settings
Jim C. Nasby, Database Consultant decibel(at)decibel(dot)org
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