Steve Crawford <scrawford@xxxxxxxxxxxxxxxxxxxx> writes:
> On 03/07/2012 05:14 AM, Lukasz Brodziak wrote:
>> I have a question regarding pg_attribute. In which file it is stored
>> because the relfilenode for it shows 0 and file 1249 isn't present in
>> the folder.
> select pg_relation_filepath('pg_attribute');
> From the docs, relfilenode is:
> "Name of the on-disk file of this relation; zero means this is a
> "mapped" relation whose disk file name is determined by low-level state"
> However the meaning "mapped relation" and "low-level state" are
> difficult to divine from the docs. Go with the function.
Or use pg_relation_filenode() if you want the result of the mapping.
regards, tom lane
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