Zdenek Kotala <[EMAIL PROTECTED]> writes: > Andrew Dunstan wrote: >> Or give better performance?
> Yes. List of chunks is stored as linked list and for some operation > (e.g. expand) are all chunks opened and their size is checked. On big > tables it takes some time. For example if you have 1TB big table and you > want to add new block you must go and open all 1024 files. Indeed, but that would be far more effectively addressed by fixing the *other* code path that doesn't segment at all (the LET_OS_MANAGE_FILESIZE option, which is most likely broken these days for lack of testing). I don't see the point of a halfway measure like increasing RELSEG_SIZE. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings