add types support of query: ushort, uint, ulong, int ,long ,float, double
FastBit-Python
A pythonic interface to the FastBit library which does compressed bitmask indexes on disk-based, column-oriented data.
This wrapper is very much in progress. (contributors welcome). It is started from earlier work (http://code.google.com/p/pyfastbit/) by myself and Jose Nazario.
See tinker.py for current usage.
Installing FastBit
install fastbit c/c++ library:
wget https://codeforge.lbl.gov/frs/download.php/231/fastbit-ibis1.2.2.tar.gz tar xzf fastbit-ibis1.2.2.tar.gz cd fastbit-ibis1.2.2/ ./configure && make -j4 && sudo make install
and to install pyfastbit:
git clone sudo python setup.py install
Usage
>>> from fastbit import FastBit
>>> import numpy as np
>>> f = FastBit('datadir.test')
>>> f.add_array(np.arange(100), 'a')
>>> f.add_array(np.arange(100, dtype='i'), 'b')
>>> q = f.query('b > 97', 'b')
>>> q.b
[98, 99]
>>> import shutil; shutil.rmtree('datadir.test')