FromNamedRecord and number of rows with values less than rows in file

Hello! I'm trying to parse individual chunks of a CSV file into Haskell datatypes, and I have a column that only has on row with a value, and the file has maybe 10 rows. Is it not possible to just parse a `FromNamedRecord` with `decodeByName` and it just stops, when it doesn't see any more values in the rows?