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Re: [WebSQL] Any future plans, or has IndexedDB replaced WebSQL?

From: Keean Schupke <keean@fry-it.com>
Date: Mon, 4 Apr 2011 15:57:27 +0000
Message-ID: <BANLkTi=w0=SYVP9205P7VgzgNqROqxySbQ@mail.gmail.com>
To: Joran Greef <joran@ronomon.com>
Cc: public-webapps@w3.org
On 4 April 2011 15:55, Keean Schupke <keean@fry-it.com> wrote:

> Yes, it already has well defined set operations. Solid is a matter of
> testing by enough people (and if you wanted to try it and feed back that
> would be a start). Fast should not be a problem, as the SQL database does
> all the heavy lifting.
>
> In more detail, Codd's six primitive operators are project, restrict,
> cross-product, union and difference. Relations are an extension of Sets, so
> intersection and difference on compatible relations behave like they would
> on sets.
>

I missed 'rename' from my list of Codd's operators. Our 'project' function
provides both project & rename, so I overlooked it.


> ...
>


Cheers,
Keean.
Received on Monday, 4 April 2011 15:58:02 GMT

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