Hi, I have a table employee with 33 columns. The table have 200 records now. Select * from employee takes 15 seconds to fetch the data!!! Which seems to be very slow. But when I say select id,name from empoyee it executes in 30ms. Same pefromance if I say select count(*) from emloyee.
Why the query is slow if I included all the columns in the table. As per my understanding , number of columns should not be having a major impact on the query performance. I have increased the shared_buffres to 1024MB, but no improvement. I have noticed that the query "show shared_buffers" always show 8MB.Why is this? Does it mean that changing the shared_buffers in config file have no impact? Can anybody help? Shaiju -- View this message in context: http://postgresql.1045698.n5.nabble.com/Select-is-very-slow-tp3254568p3254568.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.
