Re: What exactly are "Constraint programming" & "constraint databases" about ?
From: Nicola <nvitacolonna_at_gmail.com>
Date: Thu, 7 Jan 2016 11:31:21 +0100
Message-ID: <n6lepo$21ee$1_at_adenine.netfront.net>
>
> This correspondence is certainly intriguing in semi-algebraic case. In
> algebraic case you can employ off-the-shelf CAS to work as rudimentary
> RDBMS
> https://vadimtropashko.wordpress.com/2016/01/04/relational-algebra-with-cas/
Date: Thu, 7 Jan 2016 11:31:21 +0100
Message-ID: <n6lepo$21ee$1_at_adenine.netfront.net>
On 2016-01-06 17:54:52 +0000, vadimtro_at_gmail.com said:
> On Wednesday, January 6, 2016 at 7:52:39 AM UTC-8, Nicola wrote:
>> constraint programming : constraint database = relational algebra : >> relational database
>
> This correspondence is certainly intriguing in semi-algebraic case. In
> algebraic case you can employ off-the-shelf CAS to work as rudimentary
> RDBMS
> https://vadimtropashko.wordpress.com/2016/01/04/relational-algebra-with-cas/
Note that the correspondence is (intentionally) inaccurate. In constraint databases you continue to use relational algebra, for example; it's just the evaluation mechanism that changes. The role of constraint programming in that context is closer to query evaluation than to query formulation.
Nicola
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