When trying to prepare a query that uses the '@?' jsonb operator, Qt confuses that operator for a query parameter (because of the '?').

Here is a fiddle that demonstrates the behavior:
https://www.db-fiddle.com/f/4jyoMCicNSZpjMt4jFYoz5/2444

And in case the fiddle goes down, here are the commands it runs:

CREATE TABLE my_table (my_column jsonb);

INSERT INTO my_table (my_column) VALUES ('

');

– Trying to prepare something of the form
– SELECT * FROM my_table WHERE my_column @? :condition;

– Doesn't work in Qt. The '?' in the '@?' operator is mistaken for a parameter.
SELECT * FROM my_table WHERE my_column @? '$.a[*] ? (@ == 1)';

– Works. The '@@' operator can't be a parameter
SELECT * FROM my_table WHERE my_column @@ '$.a[*] == 1';