not correct result function LAG, if the value OFFSET values are assigned from
a table
---------------------------------------------------------------------------------------
Key: CORE-4330
URL: http://tracker.firebirdsql.org/browse/CORE-4330
Project: Firebird Core
Issue Type: Bug
Affects Versions: 3.0 Alpha 2
Reporter: Simonov Denis
with t(a, b) as
(
select 1, null from rdb$database
union all
select 2, 1 from rdb$database
union all
select 3, 2 from rdb$database
union all
select 4, 3 from rdb$database
union all
select 5, 2 from rdb$database
)
select
a,
b,
lag(a, b) over(order by a) as la
from t
A B LA
1
2 1 <-- incorrect
3 2 <-- incorrect
4 3 2 <-- incorrect
5 2 3
PostgreSQL return correct result
with t(a, b) as
(
select 1, null
union all
select 2, 1
union all
select 3, 2
union all
select 4, 3
union all
select 5, 2
)
select
a,
b,
lag(a, b) over(order by a) as la
from t
A B LA
1
2 1 1
3 2 1
4 3 1
5 2 3
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://tracker.firebirdsql.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
------------------------------------------------------------------------------
WatchGuard Dimension instantly turns raw network data into actionable
security intelligence. It gives you real-time visual feedback on key
security issues and trends. Skip the complicated setup - simply import
a virtual appliance and go from zero to informed in seconds.
http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk
Firebird-Devel mailing list, web interface at
https://lists.sourceforge.net/lists/listinfo/firebird-devel
