emptySlice

fun ColumnSet.emptySlice(): FieldSet(source)

Deprecated

This causes "java.lang.IllegalArgumentException: Can't prepare SELECT statement without columns or expressions to retrieve" in the latest version of Exposed.

To simplify the SQL in some expression queries. For example Dual.slice(exists(Table.emptySlice().select(op))).selectAll() generates a SQL with no columns which is simpler.