Short reads in hash indexes (was: [sqlsmith] Failed assertion in _hash_splitbucket_guts)

Amit Kapila writes:

> On Sat, Dec 3, 2016 at 3:44 PM, Andreas Seltenreich <seltenreich(at)gmx(dot)de> wrote:
>> Amit Kapila writes:
>>
>>> [2. text/x-diff; fix_hash_bucketsplit_sqlsmith_v1.patch]
>> Ok, I'll do testing with the patch applied.

Good news: the assertion hasn't fired since the patch is in.

However, these are still getting logged:

smith=# select * from state_report where sqlstate = 'XX001';
-[ RECORD 1 ]------------------------------------------------------------------------------
count | 10
sqlstate | XX001
sample | ERROR: could not read block 1173 in file "base/16384/17256": read only 0 of 8192 bytes
hosts | {airbisquit,frell,gorgo,marbit,pillcrow,quakken}

> Hmm, I am not sure if this is related to previous problem, but it
> could be. Is it possible to get the operation and or callstack for
> above failure?

Ok, will turn the elog into an assertion to get at the backtraces.

regards,
Andreas