filter
Returns DataFrame with rows that satisfy row condition
df.filter { age > 18 && name.firstName.startsWith("A") }
df.filter { "age"<Int>() > 18 && "name"["firstName"]<String>().startsWith("A") }
filterBy
Returns DataFrame with rows that have value true in the given column of type Boolean.
See column selectors for how to select the column for this operation.
df.filterBy { isHappy }
df.filterBy("isHappy")
16 June 2025