Re: Version 11 partitioning: Constraint exclusion vs Partition Pruning

Mark Steben wrote:
> I am contemplating implementing partitioning in Postgres v 11.  I am
> reading the documentation and came across this statement in the
> Constraint Exclusion section:
> Constraint exclusion only works when the query's WHERE clause
> contains constants (or externally supplied parameters).   
> Is this true also in Partition pruning?  I don't see a similar
> statement in that section.

In v11, partition pruning will also work at query execution time,
that is, you don't have to use a constant.


Yours,
Laurenz Albe
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