Why are tvFilters not filtered in pdoResources?

Question

PHP

When using pdoResources the following problem.
I set tvFilters=`param==20` in tvFilters, everything is fine filtered.
I set tvFilters=`param<=20`, all values ​​are shown, less than 20 and more than 100. For some reason, it thinks that 100 is 10.
However, when using getResources, everything is filtered correctly.
How to filter, what am I doing wrong?

Answer 1

Try adding to the call -
&sortbyTVType=`integer`