Bug in Datafinder Queries?

[StefanR]

In this case you should apply the sensor info to the individual groups containg the data measured with this specific sensor.

[StefanR]

Regarding the question whether this behavior is a bug, the answer is pretty simple: no.

Rationale: Consider you search for a file with a channel named 'speed' AND a unit of 'km/h'. There are two different ways to interpret this query:

A) There should be at least one channel named 'speed' AND one channel with the unit 'km/h', which results in a query like

file.group.channel.name = 'speed' AND file.group.channel.unit = 'km/h'

which will return results even in the case the channel named 'speed' has a unit of 'mph' only because there exists a different channel (maybe named 'speedlimits') with the unit 'km/h'.

B) There should be at least one channel named 'speed' with the same channel having a unit of 'km/h', which results in a query like

file.group.channel(name = 'speed' AND unit = 'km/h')

which will only retunr results if both conditions are met for the same channel.

This is the way DataFinder works.

[labmaster]

I agree with your last reply.

Maybe, there was a problem in communication with you.

As a second case, I expect some results by queries.

For examples, _prop.value1 is located in several groups and channel but I want to filter it by using datetime.

(Please see the my former attachment again)

The searching for the individual (_prop.value1 and datetime) was okay but none in their combinational queries.

labmaster. 

[labmaster]

Dear Stefan:

I have a LV 2009 version of developer suit. It includes datafinder in the package.

When I distribute my application after application builder, how to distribute the datafinder?

Do I have to purchase it separately?

Can I install only the datafinder from my package?

labmaster.