mkQueryValues type suggests that the RText construction can fail and I have to check for failure.
Is it actually true that mkQueryValue can fail? I cannot see, how. If it cannot fail, can we have a non-monadic counterpart to mkQueryValue?
Otherwise I have to call partial functions to process the result of mkQueryValue.
mkQueryValue
s type suggests that theRText
construction can fail and I have to check for failure. Is it actually true thatmkQueryValue
can fail? I cannot see, how. If it cannot fail, can we have a non-monadic counterpart tomkQueryValue
? Otherwise I have to call partial functions to process the result ofmkQueryValue
.