I realize the READ performance goes down dramatically when my table goes large. 
Every new day goes on, my table can increase x millions of new rows.

I was wondering whether this is good practice I can design my database in this 
way?

Instead of having

lot <-> unit <-> measurement

Can I have

lot-March-2010 <-> unit-March-2010 <-> measurement-March-2010
lot-April-2010 <-> unit-April-2010 <-> measurement-April-2010

(1) That's mean in my stored procedure, I need to dynamically generate the 
table name. Is this the "dynamic SQL" to correct way, to dynamically generate 
table name : http://www.postgresql.org/docs/8.1/interactive/ecpg-dynamic.html

(2) Is this consider a good approach, to overcome speed problem (especially 
read speed). Any potential problem I should put an eye on, before I implement 
this strategy?

Thanks and Regards
Yan Cheng CHEOK


      


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