On Mon, Apr 9, 2018 at 3:49 PM, Kyotaro HORIGUCHI <horiguchi.kyot...@lab.ntt.co.jp> wrote: > > I don't think it is not only on constatns. With the patch, > non-constants are .. getting a rather strange conversion. > > >> =# explain verbose select (a, b, c)::t1p1p1::t1p1::t1 from (select i, i * 2, >> i * 3 from generate_series(0, 10) i) x(a, b, c); >> QUERY PLAN >> ------------------------------------------------------------------------- > ... >> Output: (ROW(i.i, (i.i * 2), (i.i * 3))::t1p1p1)::t1 > > Conversions between scalar values cannot be assumed safely > composed each other for general inputs but it is known to be safe > for the ConvertRowtypeExpr case.. I think.
I am not able to parse this statement. What output do you see without the patch? -- Best Wishes, Ashutosh Bapat EnterpriseDB Corporation The Postgres Database Company
