Fully covered OData filter functions
Needed for use case like `$filter=length(title) gt 64` and/or `$filter=toupper(firstname)`
Thank you for your feedback. While it is unlikely we’ll address this suggestion in the near future, we’ll reassess based on the number of votes it receives.
Azure Search Product Team
Satoshi Azuma commented
correct: `$filter=toupper(firstname) eq 'ALEX'`