📄️ _count()
Returns the number of rows in the input.
📄️ _sum(col)
Adds up a numeric column.
📄 ️ _avg(col)
Returns the arithmetic mean of a numeric column.
📄️ _min(col) & _max(col)
Return the smallest or largest value in a column.
📄️ _unique(col)
Returns the distinct values of a column as an array.
📄️ _asc(col) & _desc(col)
Sort the rows of a table or relation.
📄️ _like(pattern)
SQL-style LIKE pattern matching. Almost always used inside a filter.
📄️ _date(col, format)
Parses or formats a timestamp column.