On Wed, Jun 16, 2021 at 8:57 AM houzj.f...@fujitsu.com <houzj.f...@fujitsu.com> wrote: > > I think the check of partition could be even more complicated if we need to > check the parallel safety of partition key expression. If user directly > insert into > a partition, then we need invoke ExecPartitionCheck which will execute all > it's > parent's and grandparent's partition key expressions. It means if we change a > parent table's partition key expression(by 1) change function in expr or 2) > attach > the parent table as partition of another parent table), then we need to > invalidate > all its child's relcache. >
I think we already invalidate the child entries when we add/drop constraints on a parent table. See ATAddCheckConstraint, ATExecDropConstraint. If I am not missing anything then this case shouldn't be a problem. Do you have something else in mind? -- With Regards, Amit Kapila.
