Re: Parallel query fails on standby server

On Tue, Mar 8, 2016 at 8:23 AM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
> On Tue, Mar 8, 2016 at 9:51 PM, Craig Ringer <craig(at)2ndquadrant(dot)com> wrote:
>> On 8 March 2016 at 20:30, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com> wrote:
>>>
>>> While testing a parallel scan feature on standby server, it is found that
>>> the parallel query fails with an error "ERROR: failed to initialize
>>> transaction_read_only to 0".
>>>
>>
>> Looks like it might be a good idea to add some tests to src/test/recovery
>> for parallel query on standby servers...
>
> An even better thing would be a set of read-only tests based on the
> database "regression" generated by make check, itself run with
> pg_regress.

I'm not sure anything in the main regression suite actually goes
parallel right now, which is probably the first thing to fix.

Unless, of course, you use force_parallel_mode=regress, max_parallel_degree>0.

--
Robert Haas
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