Relative Date time MYSQL format broken for DATE_SUB

[vaghul]

Describe the bug
When selecting relative Data time option the Subtract 'x' days does not respond with accurate mysql query

To Reproduce

1. Go to Demo Builder
2. Clear all pre build rules
3. select Datetime from the field selection
   4.Select relative RHS option
4. Change the op to '+' and '-' both returns same SQL

Expected behavior
'+'. should have DATE_ADD while '-' should have DATE_SUB or

• should have an positive interval while - should have negative interval

Screenshots

[Ajibose]

i would like to work on this issue