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/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
