Insert tag state and get its 'stayed' time correctly

Hi all,
 

I am very new to PI.

My company already uses OSi PI, and we use a tool ''OPCDAServer" to simulate events.

SELECT *  FROM [piarchive].[picomp2] WHERE tag in ('Some_State') and time > '2014-04-22 06:00:00.00'

Then I get:

tag,time,_index,value,status,questionable,substituted,annotated,annotations
Some_State,2014-04-22 13:00:12.051,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 13:09:35.016,1,4002.0,0,false,false,false,null
Some_State,2014-04-22 13:10:12.035,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 13:10:13.034,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 13:12:49.335,1,4003.0,0,false,false,false,null
Some_State,2014-04-22 13:20:13.033,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 13:20:14.031,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 13:21:16.585,1,4001.0,0,false,false,false,null
Some_State,2014-04-22 13:30:13.032,1,3006.0,0,false,false,false,null
Some_State,2014-04-22 14:50:19.044,1,3006.0,0,false,false,false,null

Now, when I run:

SELECT TIMEEQ('Some_State', '2014-04-22 06:00:00.00', '2014-04-22 20:00:00.00', 4001)

I always get 0, but other non programmatically inserted tags are correctly retrieved.

In other words, inserting into picomp2 doesn't seem to be used by TIMEEQ, is there another place to insert? any specific configuration somewhere?

Thanks a lot,

Ahmed