Re: Compiler warning in costsize.c

Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:

> I wonder if we shouldn't just do
>
> RangeTblEntry *rte PG_USED_FOR_ASSERTS_ONLY;
> ListCell *lc;
>
> /* Should only be applied to base relations that are subqueries */
> Assert(rel->relid > 0);
> -#ifdef USE_ASSERT_CHECKING
> rte = planner_rt_fetch(rel->relid, root);
> Assert(rte->rtekind == RTE_SUBQUERY);
> -#endif
>
> and eat the "useless" calculation of rte.

Why bother with the 'rte' variable at all if it's only used for the
Assert()ing the rtekind?

Assert(planner_rt_fetch(rel->relid, root)->rtekind == RTE_SUBQUERY);

- ilmari

--
"The surreality of the universe tends towards a maximum" -- Skud's Law
"Never formulate a law or axiom that you're not prepared to live with
the consequences of." -- Skud's Meta-Law