16383 digits ought to be enough for everyone: "up to 131072 digits before the decimal point; up to 16383 digits after the decimal point" Non jokingly: I think

16383 digits ought to be enough for everyone: "up to 131072 digits before the decimal point; up to 16383 digits after the decimal point" Non jokingly: I think precision wise that's really plenty enough for pretty much any halfway realistic usecase (no, don't do public key crypto using SQL datatypes). There's some issues with the numeric / decimal type, but lack of potential precision isn't one of them.