> "Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at> writes:
> > IIRC Postgres started out with the same [but extended] query language as
> > Ingres.
> > So I think they are not completely unrelated.
>
> QUEL and POSTQUEL are the two query languages in question, I believe.
> Never having studied either, I have no clue how closely they are
> related.
The languages were almost identical, except for the object creation
extensions.
> In any case, I'm pretty sure that Postgres was a completely new
> implementation that used none of the Ingres code. The no-overwrite
> storage management scheme was definitely a new concept in Postgres.
None shared. I have the Ingres code here and it is pretty small.
Entire source is only 1.7 megs uncompressed.
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