Sorry, I don't know much about postgis at all. I assume you meant to have
THEN 1 in your update statement as well.
I notice b.fid=l.fid and NOT b.fid=l.fid in the two clauses. How about
separate update statements?
UPDATE linesegments l
set edited = 1
WHERE l.gid IN (SELECT li.gid FROM linesegmen
>
> But how can I set the edited vale = 1 on the objects (line segments) that
> are not deleted (in the current buffer) at the same time so it won’t be
> deleted in the next run with an adjacent buffer?
>
You might want to create a temporary table to hold unique identifiers of
all records that you
