Mark Anns wrote:
> How the planning factors of PGStrom differs from planning factos of
> PostgreSQL?

I don't know what exactly you mean by a "planning factor".

What PGStrom does is estimate the cost of the GPU operations
and attach these costs to a custom scan node which is part of
a query plan.

Many different plans are generated; some will involve PGStrom,
some will not.  The optimizer then chooses among these plans the
one with the lowest total cost.

Yours,
Laurenz Albe

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