"Joshua D. Drake" <j...@commandprompt.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- column basis? -Kevin
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