Re: Table size does not include toast size

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Tom Lane wrote:
> Rafael Martinez <r(dot)m(dot)guerrero(at)usit(dot)uio(dot)no> writes:
>> I am probably missing the point here, why is it not supposed to show the
>> size of the table(data) *without* indexes?
>
> Because pg_relation_size is defined at the "physical" level of showing
> one relation, where relation means a pg_class entry. If you want
> agglomerations of multiple relations, you can use
> pg_total_relation_size,

Ok, thanks for the clarification :-)

The 'problem' is that as a developer with advanced knowledge of the
postgres internals, you see a table as a group of relations (toast,
indexes, toast relation's index, etc)

A 'normal' user only sees a table and its indexes and this user
misinterpret the use of the function "pg_relation_size() when it reads
in the documentation "pg_relation_size(): Disk space used by the table
or index ... "

regards,
- --
Rafael Martinez, <r(dot)m(dot)guerrero(at)usit(dot)uio(dot)no>
Center for Information Technology Services
University of Oslo, Norway

PGP Public Key: http://folk.uio.no/rafael/
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