Re: [HACKERS] sgmr* vs. md*

> 
> > smgr is a generic i/o interface layer that allows multiple storage
> > managers.  Currently, we always use DEFAULT_SMGR as a parameter to smgr*
> > functions, causing calls to the md* routines.  Is there any value in
> > just removing the smgr layer completely.  It was originally for a CD
> > jutebox i/o layer in addition to our current disk i/o layer.
> > 
> Wouldn't this be the interface for a tablespace i/o manager ?
> A tablespace has the advatage of only needing a number of files
> for thousands of small tables, and reduces the overhead of many 
> open file handles. A tablespace is also needed before raw devices
> can be efficiently exploited.

Good point.

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