How do I delete a fixed number of rows with sorting in PostgreSQL?

Question

I\'m trying to port some old MySQL queries to PostgreSQL, but I\'m having trouble with this one:

DELETE FROM logtable ORDER BY timestamp LIMIT 10;
         


        

Answer 1

If you don't have a primary key you can use the array Where IN syntax with a composite key.

delete from table1 where (schema,id,lac,cid) in (select schema,id,lac,cid from table1 where lac = 0 limit 1000);

This worked for me.