Intruding again: Ok so this is the part I personally still miss. Because for me it doesn't convey how many times your table code will be called depending on the combination of options you give. For instance I look at

required

and I see that the goal is to have that column always passed to the table, so I add it to my "path" column (supposing I have a table that operates on paths), and I expect that my table code is called anytime

path

changes. But is that true? So I might be remembering wrong but if I have a query that has

WHERE path IN ("1", "2", "3")

I will receive only one call and one of those values no?

Because for me it doesn't convey how many times your table code will be called depending on the combination of options you give.

Correct. I do not think we can convey this.