Class SemiJoin

  • All Implemented Interfaces:
    java.lang.Cloneable, RelOptNode, RelNode
    Direct Known Subclasses:

    public class SemiJoin
    extends EquiJoin
    This class is deprecated, please use LogicalJoin with join type JoinRelType.SEMI instead.
    Relational expression that joins two relational expressions according to some condition, but outputs only columns from the left input, and eliminates duplicates.

    The effect is something like the SQL IN operator.