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sifatnabil
Specialist
Specialist

Chart dimension taking too long to load

Hi,

I have a table with a field called "Time". It has hundreds of thousands of instances (but only around 2000 unique values). On a line chart, I want to show only 48 time values at a time no matter the selection (reason being is to show 48 intervals of 30 minute "Time" values, from 0:00 to 23:30).

However, I want to convert this to different time zones so in the chart dimension I used this:

=if(Region='EMEA',time(Time,'hh:mm'),

if(Region='APAC',time(Time+maketime(8,0,0),'hh:mm'),

if(Region='Americas',time(Time-maketime(5,0,0),'hh:mm'))))

However this hangs the QV document or takes too long to load.

How can I display only 48 values at a time and with the Region condition in the dimension?

I cannot create different time zone Time values in the script because the QVDs have already been created for many months now. So I would like the make the manipulations in the front-end.

3 Replies
alkesh_sharma
Creator III
Creator III

IF conditions are resource intensive, try using Pick Match functions.

jagan
Luminary Alumni
Luminary Alumni

Hi,

Handling in script is the best solution, to overcome this change the script like below

LOAD

*,

=if(Region='EMEA',time(Time,'hh:mm'), if(Region='APAC',time(Time+maketime(8,0,0),'hh:mm'),

if(Region='Americas',time(Time-maketime(5,0,0),'hh:mm')))) AS TimeDimension

FROM Data.qvd;

Now use this field in charts, so this way you can avoid calculated dimension.

Regards,

Jagan.

Kushal_Chawda

You can handle the same in Scripting as calculated dimensions are resource consuming