[Haskell-cafe] I'm reading #OutOfTheTarPit does ghc have a relational model built in for state?

[Alberto G. Corona]

There was the long forgotten  generalised List Comprehensions. Is it still
working in the last versions?

-XTransformListComp


2015-05-21 13:55 GMT+02:00 Oliver Charles <ollie at ocharles.org.uk>:

> The https://hackage.haskell.org/package/tables library is one way to get
> a somewhat relational view of in-memory data.
>
> - Ollie
>
> On Thu, May 21, 2015 at 10:31 AM, Tom Ellis <
> tom-lists-haskell-cafe-2013 at jaguarpaw.co.uk> wrote:
>
>> On Tue, May 19, 2015 at 11:35:31AM -0700, KC wrote:
>> > I'm reading #OutOfTheTarPit does ghc have a relational model built in
>> for
>> > state?
>> >
>> > "Out of the Tar Pit" talks about FRP - Functional Relational Programming
>>
>> I guess you're looking for an "in memory" relational implementation.
>> Opaleye and Relational Record, that Ben Ford mentioned, are for building
>> queries for external SQL databases.
>>
>> For some time now I've been thinking about implementing such an "in
>> memory"
>> database with the same API as Opaleye, and I know Edward Kmett has thought
>> about efficient ways to implement such a thing using the techniques of
>> "discrimination" that he is fond of.  I for one don't have anything to
>> show
>> yet, but I will certainly announce it here if and when I do.
>>
>> Tom
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>
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-- 
Alberto.
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