On Mon, Mar 11, 2019 at 3:43 PM Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > > Huh. Well, that's another option, but then what do we do if the > > number of phases is not a constant? > > Well, why do we care? "Some phases might be skipped".
It seems pretty confusing. I mean, in the case of the CLUSTER patch, you're either going to seq-scan the table or index-scan the table. Those are (at last check) reported using different phase numbers, but they are mutually exclusive. Generally, if you are going to do either foo -> bar -> baz -> quux or foo -> bletch -> quux, how many phases are there total? 5? 4? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
