[GRASS-user] getting from DBF to SQLite
Hamish
hamish_b at yahoo.com
Thu Feb 14 13:59:06 PST 2013
Michael wrote:
> This and especially portability is why I argued--
> unsuccessfully--
? I thought the question was still up in the air for g7 and
for now it was user choosable by the way you constructed the
db.connect string.
> for a separate sqlite DB for each vector file, even if it is
> inefficient.
is it? only when doing joins? if so, how common a use case is
that? (no idea how well sqlite handles fseeks() to jump right to
the data it needs, or if it has to read in the whole file)
I'm mildly in favour of per-map dbs as I've often seen 600mb
vector datasets on 32bit machines, and 2-4gb limit of the
filesystem doesn't seem so far away if those get set to be
cumulative. But I am fairly ignorant of DB issues and sqlite
implementations in particular, so am not really familiar with
what gains you might see from the monolithic approach.
best,
Hamish
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