Thank you for the info.
I found a simple way:
==========================
[1] create SEQUENCE tmp start 7820;
[2]
insert into desti_table_name
select nextval('tmp'),
c1, c2... ... cN
from t1 left join t2... ... tn
where ... ...
Just for people using 8.3, this is mimic row_number.
Emi
If your table is not terribly big, you can
try something like
SELECT a.col1,a.col2, COUNT(*) as row_number
FROM yourTable a,yourTable b
WHERE a.col1 >= b.col1 -- I'm assuming col1 is primary key
GROUP BY a.col1,a.col2
ORDER BY row_number
This is pure SQL, should work in every version...
Best,
Oliveiros
----- Original Message ----- From: "Emi Lu" <em...@encs.concordia.ca>
To: <pgsql-sql@postgresql.org>
Sent: Wednesday, April 20, 2011 4:45 PM
Subject: [SQL] How to realize ROW_NUMBER() in 8.3?
Hello,
ROW_NUMBER() is only ready in 8.4. For 8.3, is there a simple way to
get row_number
select row_number(), col1, col2...
FROM tableName
Thanks a lot!
Ding Ye
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Emi Lu, ENCS, Concordia University, Montreal H3G 1M8
em...@encs.concordia.ca +1 514 848-2424 x5884
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