> I have two tables. Tick table has fields like ticker, time, price & volume and Timeseries
> table has fields like ticker, time, avg_price, avg_volume.
>
> The time field in Timeseries table is different from time in tick table, its the timeseries
> for every minute. Now I want to calculate the average price & volume from tick table for each
> ticker and for every minute and add those fields to timeseries table. Can anyone please help me
> out with the sql query.
>
> Note: The ticker in the tick table also has duplicate values, so i am not able to create
> relation between two tables.
Here is my guess how it can be done:
insert into Timeseries ( tiker, time, avg_price, avg_volume ) select ...
where select .... would be
select tick, date_trunc('minute', time) as minute, avg(price) as avg_price, avg(volume) as
avg_volume
from ticker
where time between 'yourstartdate' and 'yourenddate'
group by tick, minute;
Regards,
Richard Broersma Jr.
