Yes , I know what sequence is, but our procedure for generating doc numbers is v. big and has manny (4) parameters and we did'nt use sequence in it for this reason ....

any other advice ?

thak you,
Adi

On Mon, 04 Jul 2005 14:47:16 +0200, Zac <[EMAIL PROTECTED]> wrote:

Din Adrian wrote:
Hello,
I have a 'big' problem:
I am trying to run from a procedure a function witch generate a new document number (max from table +1 ) and after to insert a document with this number, but the function returns me the same number each time because the tranzaction is not finished and the inserts are not commited and of course the next document number is the same.
...
 for ...
loop
nr=get_me_next_number(params);
insert into table values (nr,...)
end loop
...
 ...
error inserting in table .. primary_key nr .....
Is any way in making the external function to 'know' that I inserted another row but this insert is in a tranzaction that is not finish yet ? ar onother solution ? for now I 'solved' by asking for a nr once and generate myself next number (+1) but this is not a correct solution (in this time somebody else could insert a document with the same nr as the procedure )
 thank you,
Adi

I think the best solution is to use a sequence, not "select max(id) +1 from table". Look here:
http://www.postgresql.org/docs/8.0/interactive/sql-createsequence.html
http://www.postgresql.org/docs/8.0/interactive/functions-sequence.html
Bye

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