Itagaki Takahiro wrote:

> To fix the bug, each field in StdRdOptions should have "not-specified" flag.
> If not specified, autovacuum should use current GUC settings instead of
> reloptions. Is it possible to change the default values of reloptions
> to some magic number (-1 or so) ?

Ah.  After checking the code I remember that this was right at some
point, but it was lost when the parsing step was made to use a table
(fillRelOptions).  This behavior could be restored by having the fill
routine have a callback of some sort; we could use that to set a boolean
in StdRdOptions that indicated whether they are set in reloptions or are
default values.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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