Method parse_optional_precision

src/sql-parser/src/parser.rs:7444–7452

(&mut self)

    }

    fn parse_optional_precision(&mut self) -> Result<Option<u64>, ParserError> {
        if self.consume_token(&Token::LParen) {
            let n = self.parse_literal_uint()?;
            self.expect_token(&Token::RParen)?;
            Ok(Some(n))
        } else {
            Ok(None)
        }
    }

    fn parse_map_type(&mut self) -> Result<RawDataType, ParserError> {
        self.expect_token(&Token::LBracket)?;