public void onMatch(final RelOptRuleCall call) {
    final Project project = call.rel(0);
    final Filter filter = call.rel(1);
    final Join join = call.rel(2);
    perform(call, project, filter, join);
  }
Planner rule that converts a join plus filter to anti join.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveAntiSemiJoinRule.java