**Proposed:** A new extension to implement infinite-precision decimal arithmetic on strings. The extension would consist of the following SQL functions: * decimal_add() * decimal_sub() * decimal_mul() * decimal_div() And a single new [collating function][2]: * DECIMAL The functions would take two or three arguments. The first two arguments are strings that are interpreted as decimal numbers. The third argument is a non-negative integer which is the number of digits of precision after the decimal-point to preserve. If the third argument is omitted, the value used is the larger of the two input numbers. The DECIMAL collating function compares two decimal number strings in numeric order. It works similar to [UINT collating function][1] in that it compares strings in numeric order. The difference is that DECIMAL does not access text intermixed with the strings, but it does work with negative numbers and decimal points. **Examples:** * decimal_add('123.4','3450.67',4) → '3574.0700' * decimal_div('123.4','3450.67',30) → '0.035761171018961535050806332947' * '123.4' < '3450.67' COLLATE DECIMAL → TRUE [1]: https://www.sqlite.org/uintcseq.html [2]: https://www.sqlite.org/datatype3.html#collation