Welcome to Anvil!
What happens if you just do this :
result = app_tables.feedback.search(ticker="AAPL")
Here’s a working example :
https://anvil.works/build#clone:VDYRG6QHKOHCSPDR=MPUBSLFF2I3OMCVMJD5ETPLV
In ths server function I have both a normal search and a q_full_text_match() search. Both work.