<Obs> html tag calls DB every time to fetch concept mapping.

Awesome!

I was going to say that this really should be documented, but I did a quick search and it is, but it’s buried:

https://wiki.openmrs.org/display/docs/Performance+Tuning

Any chance you could update this documentation with the issues you have been seeing?

Take care, Mark

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You also should check that your MySQL database is set to case-insensitive collation, or some other searches that do rely on the “lower” could stop working…