Mag Gam wrote:
For instance, country/2005/01/01/foo.txt
...
For instance, grep "something" country/2005/??/01/foo.txt
It gives an instant result. Thats how we are using it and we love it.
I would suspect it's two-fold.
1. Your data is already separated and well organized down to
country/year/day/month and listed in foo.txt, which keeps each foo.txt
fairly slim with only what is pertinent to that country/year/day/month.
2. The query you're typing is limited to that country/year/day/month.
That said, take foo.txt from all country/year/day/month and combine them
all into a single file. You'll see that your query takes longer to
produce results.
Also, I wouldn't go so far as to say your data never contains
duplicates. I'm sure that once you combine foo.txt files from all
country/year/day/month, you'll find duplicate entries of something, and
that's where an DBMS can be beneficial.
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