"Joshua D. Drake" <jd(at)commandprompt(dot)com> wrote:
> On Fri, 2009-07-17 at 12:50 -0500, Kevin Grittner wrote:
>> (3) Allow override of the thresholds for individual columns.
> I would skip 1 and 2 and have (3).
Sure, pick the one which requires new syntax! ;-)
How about two new ALTER TABLE actions:
ALTER [ COLUMN ] column SET COMPRESSION_THRESHOLD integer
ALTER [ COLUMN ] column SET EXTERNAL_THRESHOLD integer
Or can you suggest something better?
Laurent, would something like this address your needs? I was assuming
that if the point is to reduce I/O, you were interested in doing more
compression, not in storing more values out-of-line (in the separate
TOAST table)? Would it be manageable to tune this on a column-by-
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