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Extend ToRow and FromRow to tuples of size 18 - #229
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The latest GHC 7.6.x was in Apr 2013 and it seems that trying to build with it on Travis fails because one or more of the dependencies fail to compile.
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Not opposed, though you can use |
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Sure, we can do 20 :). I actually just chose 18 just for the aesthetics of the last entry :). I'll do a follow-up with 20 in a bit. (Hadn't noticed the |
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Well, if you like the aesthetics, maybe we could go to 24 or 30, which are very round numbers (IMO). But maybe we would be getting carried away at that point? |
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20 it is :). |
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Branch updated, incidentally also discovered that I'd missed an 'intermediat-sized' instance of FromRow. |
| instance (FromField a, FromField b, FromField c, FromField d, FromField e, | ||
| FromField f, FromField g, FromField h, FromField i, FromField j, | ||
| FromField k, FromField l, FromField m, FromField n, FromField o, | ||
| FromField p, FromField q, FromField q, FromField r, FromField s, |
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FromField q, FromField q? Should be harmless, but superfluous.
| instance (FromField a, FromField b, FromField c, FromField d, FromField e, | ||
| FromField f, FromField g, FromField h, FromField i, FromField j, | ||
| FromField k, FromField l, FromField m, FromField n, FromField o, | ||
| FromField p, FromField q, FromField q, FromField r, FromField s) => |
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And here as well (see comment for line 423)
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Nice catch! It's pretty hellish to do this manually. Will fix later today and update the PR :).
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Should be fixed now, thanks :). |
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(I've taken the liberty of including the GHC 7.6.x commit in this just to avoid the spurious Travis CI error. Feel free to drop that commit if you want to.)
I realize that tuples of this size aren't exactly ideal, but I'm actually hitting the rather low limit in UPSERT-style scenarios where the number of query parameters are usually about double that of normal queries. I'd rather not have to write newtypes for single queries :).