I'm sorry for asking this question here: In firebird-support, I got 2
answers of people who where obviously as little sure than I whether the
described behaviour is a bug or SQL standard compliant, so:
Please consider the following example:
with recursive
CTE_CNT as (select 1 as I from
26.03.2014 10:44, Thomas Beckmann wrote:
Please consider the following example:
with recursive
CTE_CNT as (select 1 as I from RDB$DATABASE
union all select I + 1 from CTE_CNT where I 20)
select i.I, j.I, k.I from CTE_CNT i
left join CTE_CNT j on i.I = j.I and j.I10
join CTE_CNT k on j.I
In fact, this behaves as:
select i.I, j.I, k.I
from ( CTE_CNT i left join CTE_CNT j on i.I = j.I and j.I10 )
join CTE_CNT k on j.I = k.I
and this is not a bug.
You should be writing:
select i.I, j.I, k.I from CTE_CNT i
left join CTE_CNT j on i.I = j.I and j.I10
left join CTE_CNT k
