Re: Patch: add timing of buffer I/O requests

On Sat, Apr 28, 2012 at 12:49 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> ... You might want to revisit the issue of how the new
>> columns in pg_stat_statements are named, as well.  I am not sure I'm
>> happy with that, but neither am I sure that I know what I'd like
>> better.  It's not too clear that the timing is specifically for data
>> block reads and writes, for example.
>
> Well, the names "time_read" and "time_write" are certainly out of step
> with every other stats view in the system; everyplace else, such columns
> are named "something_time" (and even in this view itself the other
> timing column is "total_time", not "time_total").  So that's got to
> change.  We could just reverse the word order to "read_time" and
> "write_time", or we could do something like "buf_read_time" or
> "data_read_time".  IIUC block_read_time/block_write_time in the
> pg_stat_database view are database-wide totals for the same numbers, so
> perhaps the pg_stat_statements column names should be consistent with
> those.  I am kinda wondering though why those columns spell out "block"
> where every single other column name in the stats views uses the
> abbreviation "blk".

I like the idea of including the word block in there.  I don't think
it was probably a terribly good idea to abbreviate that to blk
everywhere, but at this point it's probably better to be consistent,
sigh.

As for track_iotiming -> track_io_timing, I'm fine with that as well.

--
Robert Haas
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