Re: How to realize ROW_NUMBER() in 8.3? - Mailing list pgsql-sql

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" <emilu@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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