Class SemiJoin

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

    @Deprecated
    public class SemiJoin
    extends EquiJoin
    Deprecated.
    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.