[postgis-devel] Add-DropOverviewConstraints are not documented

[dustymugs]

Jose,

I don't believe there is a function yet for generating overviews from an 
existing raster layer.  You can do something like it though using 
ST_Resample(ST_Union(...)).

(Add|Drop)OverviewContraints is for applying the flags/constraints that 
indicate a raster column as an overview of another table.

-bborie

On 03/07/2012 01:35 PM, Jose Carlos Martinez Llario wrote:
> Hi,
> If one want to make an overview from an already existing raster layer I
> guess we should use AddOverviewConstraints.
>
> Should AddOverviewConstraints and DropOverviewConstraints be documented?
>
> Best,
> Jose
>
>
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