There is a table allowed:
names | folders ------+-------- name1 | folder1 name2 | folder1 name3 | folder1 name4 | folder2 name5 | folder2 name6 | folder2
I want the muscle to return the result of folder1, folder2 , that is, only 2 values And I don’t know how to do it .... I don’t even know how to ask Google correctly.