On Sat, 2003-08-30 at 10:47, Rob Nagler wrote: > Tom Lane writes: [snip] > enough. When I add this index, I will slow down inserts (about > 20K/day) and increase data size (this is the second largest table in [snip]
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Since I gather that this is a web-site, can we presume that they are clumped into an 8 hour range? 20,000/8 = 2,500/hour, which is 41.67/minute. If you can't do .69 inserts/second, something is wrong, and it ain't hardware, and it ain't Postgresql... > > PS: does server_id really need to be NUMERIC? Why not integer, or at > > worst bigint? > > It is a NUMERIC(18). It could be a bigint. What would be the change > in performance of this query if we changed it to bigint? http://www.postgresql.org/docs/7.3/static/datatype.html#DATATYPE-INT http://www.postgresql.org/docs/7.3/static/datatype.html#DATATYPE-NUMERIC-DECIMAL Scalars are faster than arbitrary precision types. Small (32 bit) scalars are faster than bit (64 bit) scalars on x86 h/w. -- ----------------------------------------------------------------- Ron Johnson, Jr. [EMAIL PROTECTED] Jefferson, LA USA "Adventure is a sign of incompetence" Stephanson, great polar explorer ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
