Re: [HACKERS] Compiler warning in costsize.c - Mailing list pgsql-hackers

Tom Lane <tgl@sss.pgh.pa.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

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