"Qingqing Zhou" <[EMAIL PROTECTED]> writes:
> Change elog(ERROR) to Assert(false) for two reasons:
Advertising
No. Remember that in most installations Assert() is a no-op.
> (2) even if it could happen, elog(ERROR) won't save us since in many places
> we have to check the return code of hash_search() and decide the error
> level.
You do know that elog(ERROR) doesn't return control to the caller?
> On a separate matter, can anyone please explain me how this piece of code
> works:
> /* no free elements. allocate another chunk of buckets */
> if (!element_alloc(hashp, HASHELEMENT_ALLOC_INCR))
> return NULL; /* out of memory */
That test is a no-op in the case where hashp->alloc in fact points to
palloc. But it doesn't always point there --- see shmem_alloc.
regards, tom lane
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