Hi
pá 4. 11. 2022 v 15:08 odesílatel Dmitry Dolgov <9erthali...@gmail.com> napsal: > > On Fri, Nov 04, 2022 at 05:58:06AM +0100, Pavel Stehule wrote: > > Hi > > > > fix clang warning > > I've stumbled upon something that looks weird to me (inspired by the > example from tests): > > =# create variable v2 as int; > =# let v2 = 3; > =# create view vv2 as select coalesce(v2, 0) + 1000 as result > > =# select * from vv2; > result > -------- > 1003 > > =# set force_parallel_mode to on; > =# select * from vv2; > result > -------- > 1000 > > In the second select the actual work is done from a worker backend. > Since values of session variables are stored in the backend local > memory, it's not being shared with the worker and the value is not found > in the hash map. Does this suppose to be like that? > It looks like a bug, but parallel queries should be supported. The value of the variable is passed as parameter to the worker backend. But probably somewhere the original reference was not replaced by parameter
