On 26 Mar 2008, at 13:51, Leyne, Sean wrote:

>> 2) Does the query speed depend on the number of columns in a table,
>> assuming that I will only query the PK column (select ID from
> mytable)?
>
> Generally no

This is the thinking behind some of the new "column-oriented"
databases: <http://en.wikipedia.org/wiki/Column-oriented_DBMS>. But
Firebird is not one of them ;-)
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