[Haskell-cafe] Handling custom types in Takusen

Bayley, Alistair Alistair_Bayley at invescoperpetual.co.uk
Fri Jul 27 10:49:46 EDT 2007

> From: Salvatore Insalaco [mailto:kirby81 at gmail.com] 
> The main reason is that I'm working on a Sqlite back-end for Darcs,
> that will be used to store file contents.
> I think to choose Takusen as back-end library mainly because it has
> the blob functions of Sqlite already mapped.

Umm, yes... I wrote the blob FFI imports for Sqlite, as I planned to
prototype Takusen's blob support in Sqlite first, but never got any
further with it. It is completely untested.

> In Darcs PackedStrings are used to store file contents in memory. I
> don't think that it would be very efficient to store files of
> megabytes in a text column (there could be encoding problems too).
> Also, in Sqlite 3.4, they introduced new functions for incremental
> reading / writing of Blobs. I could use them in the future.

Seems reasonable. I recall Oleg saying something privately a while ago
about an API for large objects. He may have some ideas for this.

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