Re: [HACKERS] multivariate statistics (v19)

Tomas Vondra wrote:

> The 'built' flags may be easily replaced with a check if the bytea-like
> columns are NULL, and the 'enabled' columns may be replaced by the array of
> char, just like you proposed.
> 
> That'd give us a single catalog looking like this:
> 
> pg_mv_statistics
>   starelid
>   staname
>   stanamespace
>   staowner      -- all the above as currently
>   staenabled    array of "char" {d,f,s}
>   stakeys
>   stadeps  (dependencies)
>   standist (ndistinct coefficients)
>   stamcv   (MCV list)
>   stahist  (histogram)
> 
> Which is probably a better / simpler structure than the current one.

Looks good to me.  I don't think we need to keep the names very short --
I would propose "standistinct", "stahistogram", "stadependencies".

Thanks,

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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