How to use

apply

method

in

org.apache.calcite.plan.RelOptUtil$InputReferencedVisitor

ImmutableSet.Builder<Integer> projsFromInputJoinKeysInChildSchema = ImmutableSet.builder();
InputReferencedVisitor irvLeft = new InputReferencedVisitor();
irvLeft.apply(joinExprs.get(i));
projsFromInputJoinKeysInChildSchema.addAll(irvLeft.inputPosReferenced);
projsJoinKeysInChildSchema.add(projsFromInputJoinKeysInChildSchema.build());

ImmutableSet.Builder<Integer> projsFromInputJoinKeysInChildSchema = ImmutableSet.builder();
InputReferencedVisitor irvLeft = new InputReferencedVisitor();
irvLeft.apply(joinExprs.get(i));
projsFromInputJoinKeysInChildSchema.addAll(irvLeft.inputPosReferenced);
projsJoinKeysInChildSchema.add(projsFromInputJoinKeysInChildSchema.build());

ImmutableSet.Builder<Integer> projsFromInputJoinKeysInChildSchema = ImmutableSet.builder();
InputReferencedVisitor irvLeft = new InputReferencedVisitor();
irvLeft.apply(joinKeyExprs.get(i));
projsFromInputJoinKeysInChildSchema.addAll(irvLeft.inputPosReferenced);
projsJoinKeysInChildSchema.add(projsFromInputJoinKeysInChildSchema.build());

private Double getMaxNDV(RexCall call) {
 double tmpNDV;
 double maxNDV = 1.0;
 InputReferencedVisitor irv;
 for (RexNode op : call.getOperands()) {
  if (op instanceof RexInputRef) {
   tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel,
     ((RexInputRef) op).getIndex());
   if (tmpNDV > maxNDV)
    maxNDV = tmpNDV;
  } else {
   irv = new InputReferencedVisitor();
   irv.apply(op);
   for (Integer childProjIndx : irv.inputPosReferenced) {
    tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel, childProjIndx);
    if (tmpNDV > maxNDV)
     maxNDV = tmpNDV;
   }
  }
 }
 return maxNDV;
}

private Double getMaxNDV(RexCall call) {
 double tmpNDV;
 double maxNDV = 1.0;
 InputReferencedVisitor irv;
 RelMetadataQuery mq = RelMetadataQuery.instance();
 for (RexNode op : call.getOperands()) {
  if (op instanceof RexInputRef) {
   tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel, mq,
     ((RexInputRef) op).getIndex());
   if (tmpNDV > maxNDV)
    maxNDV = tmpNDV;
  } else {
   irv = new InputReferencedVisitor();
   irv.apply(op);
   for (Integer childProjIndx : irv.inputPosReferenced) {
    tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel,
      mq, childProjIndx);
    if (tmpNDV > maxNDV)
     maxNDV = tmpNDV;
   }
  }
 }
 return maxNDV;
}

private Double getMaxNDV(RexCall call) {
 double tmpNDV;
 double maxNDV = 1.0;
 InputReferencedVisitor irv;
 for (RexNode op : call.getOperands()) {
  if (op instanceof RexInputRef) {
   tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel, mq,
     ((RexInputRef) op).getIndex());
   if (tmpNDV > maxNDV) {
    maxNDV = tmpNDV;
   }
  } else {
   irv = new InputReferencedVisitor();
   irv.apply(op);
   for (Integer childProjIndx : irv.inputPosReferenced) {
    tmpNDV = HiveRelMdDistinctRowCount.getDistinctRowCount(this.childRel,
      mq, childProjIndx);
    if (tmpNDV > maxNDV) {
     maxNDV = tmpNDV;
    }
   }
  }
 }
 return maxNDV;
}