rasql - support round() operator

[Bang Pham Huu]

rasql should support round(scalarExp/mddExp) operator to round floating-point arguments. The implementation should be similar to sin/cos for example, and use ​std::round under the hood (1 and 3). On integer inputs it shouldn't do anything, i.e. return the input as is.

[Bang Pham Huu]

Otoniel could do this ticket.

[Dimitar Misev]

In addition to round, it should also support ceil/floor. All three functions are

• defined only on float / double values
• have result type same as the input type