 <em>parquet</em> and <em>feather</em>
data one can specify a <code>partioning</code> argument when calling
<code>get_cansim_connection</code>. This will partition the data by the
specified columns. This can be useful when filtering by these columns as
it will only read the relevant partitions and greatly increase read
performance with a sight cost to size on disk. If for example a dataset
is mostly accessed by filtering on geographic regions, it might be
useful to partition by <code>GeoUID</code>, or the <