Unless I'm seeing something wrong
In [21]: df = DataFrame(dict(A = 'foo', B = 'bar'),index=range(5)).set_index("A")
In [22]: df.to_hdf('store.h5', 'test', format='table', min_itemsize={'index': 10})
In [23]: store = pd.HDFStore('store.h5')
In [24]: store.get_storer('test').table
Out[24]:
/test/table (Table(5,)) ''
description := {
"index": StringCol(itemsize=3, shape=(), dflt=b'', pos=0),
"values_block_0": StringCol(itemsize=3, shape=(1,), dflt=b'', pos=1)} # <---- I think this should be 10
byteorder := 'irrelevant'
chunkshape := (10922,)
autoindex := True
colindexes := {
"index": Index(6, medium, shuffle, zlib(1)).is_csi=False}
and FYI this raises (not sure if it should work)
In [25]: df.index.name = 'theindex'
In [26]: df.to_hdf('store.h5', 'test2', format='table', min_itemsize={'theindex': 10})
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
Just a report right now... no time.
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