I have a query that causes a crash in Ultralite, both in the iPad and Interactive SQL. The crash began to happen after I installed EBF 3798. Before that, the query was executed without error.
The original query is somewhat complex, but I succeeded in devising a simple query that causes the crash as well.
The query is:
select * from (
select
A.id as i,
case A.num
when 0 then 'a'
when 1 then 'b'
when 2 then 'c'
else 'd'
end as v,
v + ' - ' + A.num as s
from testTable A
) as X(i, v, s)
where i = 1
And the Ultralite database has only one table:
create table testTable
(
id int primary key,
num int,
descr varchar(100)
)
The crash occurs when executing ULConnection's PrepareStatement method. And the table does not need to have any data in it.
If I remove the enclosing select, the problem does not happen again. Also, if remove either column v (the one that contains the case statement) or column s, that concatenates the preceding field with another field from the table, the problem does not occur any longer.
Those solutions are not acceptable, because the outer query is generated at runtime, in other to add extra filters to an existing query.
Bluesky
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.