[VL] add div function

[guixiaowen]

Description

div function
expr1 div expr2 - Divide expr1 by expr2. It returns NULL if an operand is NULL or expr2 is 0. The result is casted to long.

Examples:

`
SELECT 3 div 2;
SELECT INTERVAL '1-1' YEAR TO MONTH div INTERVAL '-1' MONTH;
-13

`

In Spark, the implementation class of div is: IntegralDivide.

In 3.2.x, supports two types of div:

div(long, long) , return long result

div(decimal, decimal), return long result

After 3.3.x, add new type:

div(YearMonthIntervalType, YearMonthIntervalType), return long result

div(DayTimeIntervalType, DayTimeIntervalType), return long result

In velox, the currently supported DIV scenarios are:

divide(x, y) → double

divide(x, y) → decimal

//TODO：
To support div, add velox udf function.

divide(x, y) → long
div(long, long) , return long result
Pr：
facebookincubator/velox#9621

[guixiaowen]

@PHILO-HE PH hi， Can you help me check if the direction of the issuse I mentioned is correct.

[guixiaowen]

@Yohahaha yo hi, Can you help me check if the direction of the issuse I mentioned is correct.

[Yohahaha]

@Yohahaha yo hi, Can you help me check if the direction of the issuse I mentioned is correct.

yeah, IntegralDivide for Long type is missed, you can verify it with an UT.

[guixiaowen]

@Yohahaha yo hi, Can you help me check if the direction of the issuse I mentioned is correct.

yeah, IntegralDivide for Long type is missed, you can verify it with an UT.

@Yohahaha 3q.

[PHILO-HE]

@guixiaowen, the proposal looks good! Just left some comments on the velox PR. Thanks!

[guixiaowen]

@guixiaowen, the proposal looks good! Just left some comments on the velox PR. Thanks!

OK. Thanks.