[Haskell-beginners] Ranges and List Comprehensions in SQL
Tom Murphy
amindfv at gmail.com
Thu Sep 2 15:54:12 EDT 2010
Hi Everyone,
Is there a "From SQL"-type function that "restores" a range or list
comprehension?
Example:
Let's say I want to keep track of which episodes of a TV show I've seen. I
have an SQL table, in which is a record:
id (INTEGER): 30
title (VARCHAR): "The Simpsons"
episodes_watched (Some data format): [1..4], [14], [18..21], [23..25]
Then, when I pull the record, in Haskell, the "Episodes Watched" is already
one list:
[1,2,3,4,14,18,19,21,23,24,25]
, or a series of lists that I can append together:
[1,2,3,4], [14], [18,19,20,21], [23,24,25]
Note in the example that I would like to be able to store multiple ranges
within a single record.
Thanks so much for any help!
Tom
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