Strange result of Group by on real values

2008-01-30 Thread Joris Kinable
Evening, Could someone explain the result of the Query 2? Query 2 does a GROUP BY avgOctets, but still there are duplicate avgOctets in my result set! Boxplot(octets,AVG,0) is a UDF which returns REAL values. In this case, the real values have no decimals. The only reasonable explanation I could

Re: Query optimization

2008-01-22 Thread Joris Kinable
, but therefor I've got to create a small database first to speed up the results. Thnx in advance for your help. On Jan 22, 2008 8:15 AM, Sebastian Mendel [EMAIL PROTECTED] wrote: Joris Kinable schrieb: Optimize query I've got one query, which I would like to improve a lot since it takes very long

Query optimization

2008-01-21 Thread Joris Kinable
Optimize query I've got one query, which I would like to improve a lot since it takes very long (24 hours) to execute. Here is the idea: 1. Take the table ipv4_srcipv4_dstport_dst (other rows in this table are not mentioned for clearity) and remove all duplicate tuple's. This is done by subquery

creating indexes with myisamchk

2007-11-18 Thread Joris Kinable
Good evening, I've got to create a very large table: 180GB of data has to be stored. In order to to this I'm using the following steps: 1. Create database structure including keys. 2. Disable keys: ALTER TABLE ut_netflow_4 DISABLE KEYS 3. Load data into the database. 4. Generate all index keys: