Could you please check the value of _convert_set_to_join on your
12.2.0.1.180116 database?
I'm trying to figure out what kind of condition might have flipped it to FALSE
(the value wasn't set in the spfile):
select a.ksppinm name,b.ksppstvl value,b.ksppstdf deflt,
decode
(a.ksppity, 1,
'boolean', 2,
'string', 3,
'number', 4,
'file', a.ksppity) type,
a.ksppdesc description
from
sys.x$ksppi a,
sys.x$ksppcv b
where
a.indx = b.indx
and
a.ksppinm like '%convert_set_to_join%'
order by
name ;
NAME
--------------------------------------------------------------------------------
VALUE
--------------------------------------------------------------------------------
DEFLT TYPE
--------- ----------------------------------------
DESCRIPTION
--------------------------------------------------------------------------------
_convert_set_to_join
FALSE
TRUE boolean
enables conversion of set operator to join
I'm on Solaris x86-64 (not sure if it matters).
Thanks,
Nenad
http://nenadnoveljic.com/blog/
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