On Sat, Sep 1, 2012 at 8:01 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Scott Marlowe <scott.marl...@gmail.com> writes: > > On Sat, Sep 1, 2012 at 7:25 AM, Chris Travers <chris.trav...@gmail.com> > wrote: > >> 1) While MySQL is perhaps better marketed, PostgreSQL is an older > project > >> with a proud heritage (Informix started as a Postgres fork), and > top-rate > > > Pretty sure that's not true. Ingres is a cousin of Postgres started > > by the same guy, Stonebraker, but it's not a fork either. > > He didn't say Ingres. > > Illustra was a commercial fork of Postgres (the pre-SQL versions, I > think). It was later bought out by Informix. I don't have any info > on how much of that code base survives in the modern (IBM-owned) > version of Informix - but one could assume there's at least some. > > Also whether Informix still has Postgres code, the heritage is quite obvious when you start looking at things like OID's and table inheritance.
I checked and it was pre-SQL when the fork occurred, and in fact Illustra moved to SQL first. This probably explains a lot of differences (such as in how table inheritance works in Informix vs Postgres). Best Wishes, Chris Travers
