On Wed, Mar 18, 2015 at 12:43 PM, Ruebenacker, Oliver A <
[email protected]> wrote:

>    For the limit of number of cells
> <http://wiki.apache.org/cassandra/CassandraLimitations> (columns *rows)
> per partition, I wonder what we mean by number of columns, since different
> rows may have different columns? Is the number of columns the number of
> columns of the biggest row, or the union of all columns across all rows?
> E.g. if I have two rows, one has ten columns and the other has ten
> different columns, would that be considered a total of ten or twenty
> columns?
>

I tend to still think of this in terms of storage partitions and how many
storage columns a given one may contain. It's possible that apache doc has
not been updated to reflect the new language of "partitions" and "cells"
and etc.

A given partition can contain 2Bn storage columns, regardless of how many
other columns there are in other partitions.

=Rob

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