%sql fails when query contains a Negative number #190

When running a valid sql comment that has a negative integer as an argument:

%sql SELECT DATEADD(month, -2, SYSDATE)

It returns an error:

UsageError: unrecognized arguments: -2, SYSDATE)

If you make the '-2' a string and cast it to an INT then it works:

%sql SELECT DATEADD(month, '-2'::INT, SYSDATE)

Works.