Examples with RelDataTypeFactory org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory used on opensource projects

Example 76 with RelDataTypeFactory

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory in project hive by apache.

the class TestCBOMaxNumToCNF method testCBOMaxNumToCNF2.

@Test
public void testCBOMaxNumToCNF2() {
    // OR(=($0, 1), =($0, 2), AND(=($0, 0), =($1, 8)))
    // transformation creates 9 nodes AND(OR(=($0, 1), =($0, 2), =($0, 0)), OR(=($0, 1), =($0, 2), =($1, 8)))
    // thus, it is NOT triggered
    final RelDataTypeFactory typeFactory = new JavaTypeFactoryImpl();
    final RexBuilder rexBuilder = new RexBuilder(typeFactory);
    final RexNode cond = rexBuilder.makeCall(SqlStdOperatorTable.OR, rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, rexBuilder.makeInputRef(typeFactory.createSqlType(SqlTypeName.INTEGER), 0), rexBuilder.makeLiteral(1, typeFactory.createSqlType(SqlTypeName.INTEGER), false)), rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, rexBuilder.makeInputRef(typeFactory.createSqlType(SqlTypeName.INTEGER), 0), rexBuilder.makeLiteral(2, typeFactory.createSqlType(SqlTypeName.INTEGER), false)), rexBuilder.makeCall(SqlStdOperatorTable.AND, rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, rexBuilder.makeInputRef(typeFactory.createSqlType(SqlTypeName.INTEGER), 0), rexBuilder.makeLiteral(0, typeFactory.createSqlType(SqlTypeName.INTEGER), false)), rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, rexBuilder.makeInputRef(typeFactory.createSqlType(SqlTypeName.INTEGER), 1), rexBuilder.makeLiteral(8, typeFactory.createSqlType(SqlTypeName.INTEGER), false))));
    final RexNode newCond = RexUtil.toCnf(rexBuilder, maxNumNodesCNF, cond);
    assertEquals(newCond.toString(), "OR(=($0, 1), =($0, 2), AND(=($0, 0), =($1, 8)))");
}

Example 77 with RelDataTypeFactory

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory in project hive by apache.

the class HiveSemiJoinProjectTransposeRule method adjustCondition.

/**
 * Pulls the project above the semijoin and returns the resulting semijoin
 * condition. As a result, the semijoin condition should be modified such
 * that references to the LHS of a semijoin should now reference the
 * children of the project that's on the LHS.
 *
 * @param project  Project on the LHS of the semijoin
 * @param semiJoin the semijoin
 * @return the modified semijoin condition
 */
private RexNode adjustCondition(Project project, Join semiJoin) {
    // create two RexPrograms -- the bottom one representing a
    // concatenation of the project and the RHS of the semijoin and the
    // top one representing the semijoin condition
    RexBuilder rexBuilder = project.getCluster().getRexBuilder();
    RelDataTypeFactory typeFactory = rexBuilder.getTypeFactory();
    RelNode rightChild = semiJoin.getRight();
    // for the bottom RexProgram, the input is a concatenation of the
    // child of the project and the RHS of the semijoin
    RelDataType bottomInputRowType = SqlValidatorUtil.deriveJoinRowType(project.getInput().getRowType(), rightChild.getRowType(), JoinRelType.INNER, typeFactory, null, semiJoin.getSystemFieldList());
    RexProgramBuilder bottomProgramBuilder = new RexProgramBuilder(bottomInputRowType, rexBuilder);
    // of the semijoin
    for (Pair<RexNode, String> pair : project.getNamedProjects()) {
        bottomProgramBuilder.addProject(pair.left, pair.right);
    }
    int nLeftFields = project.getInput().getRowType().getFieldCount();
    List<RelDataTypeField> rightFields = rightChild.getRowType().getFieldList();
    int nRightFields = rightFields.size();
    for (int i = 0; i < nRightFields; i++) {
        final RelDataTypeField field = rightFields.get(i);
        RexNode inputRef = rexBuilder.makeInputRef(field.getType(), i + nLeftFields);
        bottomProgramBuilder.addProject(inputRef, field.getName());
    }
    RexProgram bottomProgram = bottomProgramBuilder.getProgram();
    // input rowtype into the top program is the concatenation of the
    // project and the RHS of the semijoin
    RelDataType topInputRowType = SqlValidatorUtil.deriveJoinRowType(project.getRowType(), rightChild.getRowType(), JoinRelType.INNER, typeFactory, null, semiJoin.getSystemFieldList());
    RexProgramBuilder topProgramBuilder = new RexProgramBuilder(topInputRowType, rexBuilder);
    topProgramBuilder.addIdentity();
    topProgramBuilder.addCondition(semiJoin.getCondition());
    RexProgram topProgram = topProgramBuilder.getProgram();
    // merge the programs and expand out the local references to form
    // the new semijoin condition; it now references a concatenation of
    // the project's child and the RHS of the semijoin
    RexProgram mergedProgram = RexProgramBuilder.mergePrograms(topProgram, bottomProgram, rexBuilder);
    return mergedProgram.expandLocalRef(mergedProgram.getCondition());
}

Example 78 with RelDataTypeFactory

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory in project hive by apache.

the class HiveAggregateReduceFunctionsRule method reduceStddev.

private RexNode reduceStddev(Aggregate oldAggRel, AggregateCall oldCall, boolean biased, boolean sqrt, List<AggregateCall> newCalls, Map<AggregateCall, RexNode> aggCallMapping, List<RexNode> inputExprs) {
    // stddev_pop(x) ==>
    // power(
    // (sum(x * x) - sum(x) * sum(x) / count(x))
    // / count(x),
    // .5)
    // 
    // stddev_samp(x) ==>
    // power(
    // (sum(x * x) - sum(x) * sum(x) / count(x))
    // / nullif(count(x) - 1, 0),
    // .5)
    final int nGroups = oldAggRel.getGroupCount();
    final RelOptCluster cluster = oldAggRel.getCluster();
    final RexBuilder rexBuilder = cluster.getRexBuilder();
    final RelDataTypeFactory typeFactory = cluster.getTypeFactory();
    assert oldCall.getArgList().size() == 1 : oldCall.getArgList();
    final int argOrdinal = oldCall.getArgList().get(0);
    final RelDataType argOrdinalType = getFieldType(oldAggRel.getInput(), argOrdinal);
    final RelDataType oldCallType = typeFactory.createTypeWithNullability(oldCall.getType(), true);
    final RexNode argRef = rexBuilder.ensureType(oldCallType, inputExprs.get(argOrdinal), false);
    final int argRefOrdinal = lookupOrAdd(inputExprs, argRef);
    final RelDataType sumReturnType = getSumReturnType(rexBuilder.getTypeFactory(), argRef.getType());
    final RexNode argSquared = rexBuilder.makeCall(SqlStdOperatorTable.MULTIPLY, argRef, argRef);
    final int argSquaredOrdinal = lookupOrAdd(inputExprs, argSquared);
    final RelDataType sumSquaredReturnType = getSumReturnType(rexBuilder.getTypeFactory(), argSquared.getType());
    final AggregateCall sumArgSquaredAggCall = createAggregateCallWithBinding(typeFactory, new HiveSqlSumAggFunction(oldCall.isDistinct(), ReturnTypes.explicit(sumSquaredReturnType), InferTypes.explicit(Collections.singletonList(argSquared.getType())), // SqlStdOperatorTable.SUM,
    oldCall.getAggregation().getOperandTypeChecker()), argSquared.getType(), oldAggRel, oldCall, argSquaredOrdinal);
    final RexNode sumArgSquared = rexBuilder.addAggCall(sumArgSquaredAggCall, nGroups, oldAggRel.indicator, newCalls, aggCallMapping, ImmutableList.of(sumArgSquaredAggCall.getType()));
    final AggregateCall sumArgAggCall = AggregateCall.create(new HiveSqlSumAggFunction(oldCall.isDistinct(), ReturnTypes.explicit(sumReturnType), InferTypes.explicit(Collections.singletonList(argOrdinalType)), // SqlStdOperatorTable.SUM,
    oldCall.getAggregation().getOperandTypeChecker()), oldCall.isDistinct(), oldCall.isApproximate(), ImmutableIntList.of(argRefOrdinal), oldCall.filterArg, oldAggRel.getGroupCount(), oldAggRel.getInput(), null, null);
    final RexNode sumArg = rexBuilder.addAggCall(sumArgAggCall, nGroups, oldAggRel.indicator, newCalls, aggCallMapping, ImmutableList.of(sumArgAggCall.getType()));
    final RexNode sumArgCast = rexBuilder.ensureType(oldCallType, sumArg, true);
    final RexNode sumSquaredArg = rexBuilder.makeCall(SqlStdOperatorTable.MULTIPLY, sumArgCast, sumArgCast);
    RelDataType countRetType = typeFactory.createTypeWithNullability(typeFactory.createSqlType(SqlTypeName.BIGINT), true);
    final AggregateCall countArgAggCall = AggregateCall.create(new HiveSqlCountAggFunction(oldCall.isDistinct(), ReturnTypes.explicit(countRetType), oldCall.getAggregation().getOperandTypeInference(), // SqlStdOperatorTable.COUNT,
    oldCall.getAggregation().getOperandTypeChecker()), oldCall.isDistinct(), oldCall.isApproximate(), oldCall.getArgList(), oldCall.filterArg, oldAggRel.getGroupCount(), oldAggRel.getInput(), countRetType, null);
    final RexNode countArg = rexBuilder.addAggCall(countArgAggCall, nGroups, oldAggRel.indicator, newCalls, aggCallMapping, ImmutableList.of(argOrdinalType));
    final RexNode avgSumSquaredArg = rexBuilder.makeCall(SqlStdOperatorTable.DIVIDE, sumSquaredArg, countArg);
    final RexNode diff = rexBuilder.makeCall(SqlStdOperatorTable.MINUS, sumArgSquared, avgSumSquaredArg);
    final RexNode denominator;
    if (biased) {
        denominator = countArg;
    } else {
        final RexLiteral one = rexBuilder.makeExactLiteral(BigDecimal.ONE);
        final RexNode nul = rexBuilder.makeCast(countArg.getType(), rexBuilder.constantNull());
        final RexNode countMinusOne = rexBuilder.makeCall(SqlStdOperatorTable.MINUS, countArg, one);
        final RexNode countEqOne = rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, countArg, one);
        denominator = rexBuilder.makeCall(SqlStdOperatorTable.CASE, countEqOne, nul, countMinusOne);
    }
    final RexNode div = rexBuilder.makeCall(SqlStdOperatorTable.DIVIDE, diff, denominator);
    RexNode result = div;
    if (sqrt) {
        final RexNode half = rexBuilder.makeExactLiteral(new BigDecimal("0.5"));
        result = rexBuilder.makeCall(SqlStdOperatorTable.POWER, div, half);
    }
    return rexBuilder.makeCast(oldCall.getType(), result);
}

Example 79 with RelDataTypeFactory

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory in project hive by apache.

the class HiveAggregate method deriveRowType.

public static RelDataType deriveRowType(RelDataTypeFactory typeFactory, final RelDataType inputRowType, boolean indicator, ImmutableBitSet groupSet, List<ImmutableBitSet> groupSets, final List<AggregateCall> aggCalls) {
    final List<Integer> groupList = groupSet.asList();
    assert groupList.size() == groupSet.cardinality();
    final RelDataTypeFactory.FieldInfoBuilder builder = typeFactory.builder();
    final List<RelDataTypeField> fieldList = inputRowType.getFieldList();
    final Set<String> containedNames = Sets.newHashSet();
    for (int groupKey : groupList) {
        containedNames.add(fieldList.get(groupKey).getName());
        builder.add(fieldList.get(groupKey));
    }
    if (indicator) {
        for (int groupKey : groupList) {
            final RelDataType booleanType = typeFactory.createTypeWithNullability(typeFactory.createSqlType(SqlTypeName.BOOLEAN), false);
            String name = "i$" + fieldList.get(groupKey).getName();
            int i = 0;
            while (containedNames.contains(name)) {
                name += "_" + i++;
            }
            containedNames.add(name);
            builder.add(name, booleanType);
        }
    }
    for (Ord<AggregateCall> aggCall : Ord.zip(aggCalls)) {
        String name;
        if (aggCall.e.name != null) {
            name = aggCall.e.name;
        } else {
            name = "$f" + (groupList.size() + aggCall.i);
        }
        int i = 0;
        while (containedNames.contains(name)) {
            name += "_" + i++;
        }
        containedNames.add(name);
        builder.add(name, aggCall.e.type);
    }
    return builder.build();
}

Example 80 with RelDataTypeFactory

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.type.RelDataTypeFactory in project flink by apache.

the class FlinkAggregateExpandDistinctAggregatesRule method rewriteUsingGroupingSets.

/*
	public RelBuilder convertSingletonDistinct(RelBuilder relBuilder,
											   Aggregate aggregate, Set<Pair<List<Integer>, Integer>> argLists) {
		// For example,
		//	SELECT deptno, COUNT(*), SUM(bonus), MIN(DISTINCT sal)
		//	FROM emp
		//	GROUP BY deptno
		//
		// becomes
		//
		//	SELECT deptno, SUM(cnt), SUM(bonus), MIN(sal)
		//	FROM (
		//		  SELECT deptno, COUNT(*) as cnt, SUM(bonus), sal
		//		  FROM EMP
		//		  GROUP BY deptno, sal)			// Aggregate B
		//	GROUP BY deptno						// Aggregate A
		relBuilder.push(aggregate.getInput());
		final List<Pair<RexNode, String>> projects = new ArrayList<>();
		final Map<Integer, Integer> sourceOf = new HashMap<>();
		SortedSet<Integer> newGroupSet = new TreeSet<>();
		final List<RelDataTypeField> childFields =
				relBuilder.peek().getRowType().getFieldList();
		final boolean hasGroupBy = aggregate.getGroupSet().size() > 0;

		// Add the distinct aggregate column(s) to the group-by columns,
		// if not already a part of the group-by
		newGroupSet.addAll(aggregate.getGroupSet().asList());
		for (Pair<List<Integer>, Integer> argList : argLists) {
			newGroupSet.addAll(argList.getKey());
		}

		// Re-map the arguments to the aggregate A. These arguments will get
		// remapped because of the intermediate aggregate B generated as part of the
		// transformation.
		for (int arg : newGroupSet) {
			sourceOf.put(arg, projects.size());
			projects.add(RexInputRef.of2(arg, childFields));
		}
		// Generate the intermediate aggregate B
		final List<AggregateCall> aggCalls = aggregate.getAggCallList();
		final List<AggregateCall> newAggCalls = new ArrayList<>();
		final List<Integer> fakeArgs = new ArrayList<>();
		final Map<AggregateCall, Integer> callArgMap = new HashMap<>();
		// First identify the real arguments, then use the rest for fake arguments
		// e.g. if real arguments are 0, 1, 3. Then the fake arguments will be 2, 4
		for (final AggregateCall aggCall : aggCalls) {
			if (!aggCall.isDistinct()) {
				for (int arg : aggCall.getArgList()) {
					if (!sourceOf.containsKey(arg)) {
						sourceOf.put(arg, projects.size());
					}
				}
			}
		}
		int fakeArg0 = 0;
		for (final AggregateCall aggCall : aggCalls) {
			// We will deal with non-distinct aggregates below
			if (!aggCall.isDistinct()) {
				boolean isGroupKeyUsedInAgg = false;
				for (int arg : aggCall.getArgList()) {
					if (sourceOf.containsKey(arg)) {
						isGroupKeyUsedInAgg = true;
						break;
					}
				}
				if (aggCall.getArgList().size() == 0 || isGroupKeyUsedInAgg) {
					while (sourceOf.get(fakeArg0) != null) {
						++fakeArg0;
					}
					fakeArgs.add(fakeArg0);
				}
			}
		}
		for (final AggregateCall aggCall : aggCalls) {
			if (!aggCall.isDistinct()) {
				for (int arg : aggCall.getArgList()) {
					if (!sourceOf.containsKey(arg)) {
						sourceOf.remove(arg);
					}
				}
			}
		}
		// Compute the remapped arguments using fake arguments for non-distinct
		// aggregates with no arguments e.g. count(*).
		int fakeArgIdx = 0;
		for (final AggregateCall aggCall : aggCalls) {
			// Project the column corresponding to the distinct aggregate. Project
			// as-is all the non-distinct aggregates
			if (!aggCall.isDistinct()) {
				final AggregateCall newCall =
						AggregateCall.create(aggCall.getAggregation(), false,
								aggCall.getArgList(), -1,
								ImmutableBitSet.of(newGroupSet).cardinality(),
								relBuilder.peek(), null, aggCall.name);
				newAggCalls.add(newCall);
				if (newCall.getArgList().size() == 0) {
					int fakeArg = fakeArgs.get(fakeArgIdx);
					callArgMap.put(newCall, fakeArg);
					sourceOf.put(fakeArg, projects.size());
					projects.add(
							Pair.of((RexNode) new RexInputRef(fakeArg, newCall.getType()),
									newCall.getName()));
					++fakeArgIdx;
				} else {
					for (int arg : newCall.getArgList()) {
						if (sourceOf.containsKey(arg)) {
							int fakeArg = fakeArgs.get(fakeArgIdx);
							callArgMap.put(newCall, fakeArg);
							sourceOf.put(fakeArg, projects.size());
							projects.add(
									Pair.of((RexNode) new RexInputRef(fakeArg, newCall.getType()),
											newCall.getName()));
							++fakeArgIdx;
						} else {
							sourceOf.put(arg, projects.size());
							projects.add(
									Pair.of((RexNode) new RexInputRef(arg, newCall.getType()),
											newCall.getName()));
						}
					}
				}
			}
		}
		// Generate the aggregate B (see the reference example above)
		relBuilder.push(
				aggregate.copy(
						aggregate.getTraitSet(), relBuilder.build(),
						false, ImmutableBitSet.of(newGroupSet), null, newAggCalls));
		// Convert the existing aggregate to aggregate A (see the reference example above)
		final List<AggregateCall> newTopAggCalls =
				Lists.newArrayList(aggregate.getAggCallList());
		// Use the remapped arguments for the (non)distinct aggregate calls
		for (int i = 0; i < newTopAggCalls.size(); i++) {
			// Re-map arguments.
			final AggregateCall aggCall = newTopAggCalls.get(i);
			final int argCount = aggCall.getArgList().size();
			final List<Integer> newArgs = new ArrayList<>(argCount);
			final AggregateCall newCall;


			for (int j = 0; j < argCount; j++) {
				final Integer arg = aggCall.getArgList().get(j);
				if (callArgMap.containsKey(aggCall)) {
					newArgs.add(sourceOf.get(callArgMap.get(aggCall)));
				}
				else {
					newArgs.add(sourceOf.get(arg));
				}
			}
			if (aggCall.isDistinct()) {
				newCall =
						AggregateCall.create(aggCall.getAggregation(), false, newArgs,
								-1, aggregate.getGroupSet().cardinality(), relBuilder.peek(),
								aggCall.getType(), aggCall.name);
			} else {
				// If aggregate B had a COUNT aggregate call the corresponding aggregate at
				// aggregate A must be SUM. For other aggregates, it remains the same.
				if (aggCall.getAggregation() instanceof SqlCountAggFunction) {
					if (aggCall.getArgList().size() == 0) {
						newArgs.add(sourceOf.get(callArgMap.get(aggCall)));
					}
					if (hasGroupBy) {
						SqlSumAggFunction sumAgg = new SqlSumAggFunction(null);
						newCall =
								AggregateCall.create(sumAgg, false, newArgs, -1,
										aggregate.getGroupSet().cardinality(), relBuilder.peek(),
										aggCall.getType(), aggCall.getName());
					} else {
						SqlSumEmptyIsZeroAggFunction sumAgg = new SqlSumEmptyIsZeroAggFunction();
						newCall =
								AggregateCall.create(sumAgg, false, newArgs, -1,
										aggregate.getGroupSet().cardinality(), relBuilder.peek(),
										aggCall.getType(), aggCall.getName());
					}
				} else {
					newCall =
							AggregateCall.create(aggCall.getAggregation(), false, newArgs, -1,
									aggregate.getGroupSet().cardinality(),
									relBuilder.peek(), aggCall.getType(), aggCall.name);
				}
			}
			newTopAggCalls.set(i, newCall);
		}
		// Populate the group-by keys with the remapped arguments for aggregate A
		newGroupSet.clear();
		for (int arg : aggregate.getGroupSet()) {
			newGroupSet.add(sourceOf.get(arg));
		}
		relBuilder.push(
				aggregate.copy(aggregate.getTraitSet(),
						relBuilder.build(), aggregate.indicator,
						ImmutableBitSet.of(newGroupSet), null, newTopAggCalls));
		return relBuilder;
	}
	*/
@SuppressWarnings("DanglingJavadoc")
private void rewriteUsingGroupingSets(RelOptRuleCall call, Aggregate aggregate, Set<Pair<List<Integer>, Integer>> argLists) {
    final Set<ImmutableBitSet> groupSetTreeSet = new TreeSet<>(ImmutableBitSet.ORDERING);
    groupSetTreeSet.add(aggregate.getGroupSet());
    for (Pair<List<Integer>, Integer> argList : argLists) {
        groupSetTreeSet.add(ImmutableBitSet.of(argList.left).setIf(argList.right, argList.right >= 0).union(aggregate.getGroupSet()));
    }
    final ImmutableList<ImmutableBitSet> groupSets = ImmutableList.copyOf(groupSetTreeSet);
    final ImmutableBitSet fullGroupSet = ImmutableBitSet.union(groupSets);
    final List<AggregateCall> distinctAggCalls = new ArrayList<>();
    for (Pair<AggregateCall, String> aggCall : aggregate.getNamedAggCalls()) {
        if (!aggCall.left.isDistinct()) {
            distinctAggCalls.add(aggCall.left.rename(aggCall.right));
        }
    }
    final RelBuilder relBuilder = call.builder();
    relBuilder.push(aggregate.getInput());
    relBuilder.aggregate(relBuilder.groupKey(fullGroupSet, groupSets.size() > 1, groupSets), distinctAggCalls);
    final RelNode distinct = relBuilder.peek();
    final int groupCount = fullGroupSet.cardinality();
    final int indicatorCount = groupSets.size() > 1 ? groupCount : 0;
    final RelOptCluster cluster = aggregate.getCluster();
    final RexBuilder rexBuilder = cluster.getRexBuilder();
    final RelDataTypeFactory typeFactory = cluster.getTypeFactory();
    final RelDataType booleanType = typeFactory.createTypeWithNullability(typeFactory.createSqlType(SqlTypeName.BOOLEAN), false);
    final List<Pair<RexNode, String>> predicates = new ArrayList<>();
    final Map<ImmutableBitSet, Integer> filters = new HashMap<>();
    /** Function to register a filter for a group set. */
    class Registrar {

        RexNode group = null;

        private int register(ImmutableBitSet groupSet) {
            if (group == null) {
                group = makeGroup(groupCount - 1);
            }
            final RexNode node = rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, group, rexBuilder.makeExactLiteral(toNumber(remap(fullGroupSet, groupSet))));
            predicates.add(Pair.of(node, toString(groupSet)));
            return groupCount + indicatorCount + distinctAggCalls.size() + predicates.size() - 1;
        }

        private RexNode makeGroup(int i) {
            final RexInputRef ref = rexBuilder.makeInputRef(booleanType, groupCount + i);
            final RexNode kase = rexBuilder.makeCall(SqlStdOperatorTable.CASE, ref, rexBuilder.makeExactLiteral(BigDecimal.ZERO), rexBuilder.makeExactLiteral(TWO.pow(i)));
            if (i == 0) {
                return kase;
            } else {
                return rexBuilder.makeCall(SqlStdOperatorTable.PLUS, makeGroup(i - 1), kase);
            }
        }

        private BigDecimal toNumber(ImmutableBitSet bitSet) {
            BigDecimal n = BigDecimal.ZERO;
            for (int key : bitSet) {
                n = n.add(TWO.pow(key));
            }
            return n;
        }

        private String toString(ImmutableBitSet bitSet) {
            final StringBuilder buf = new StringBuilder("$i");
            for (int key : bitSet) {
                buf.append(key).append('_');
            }
            return buf.substring(0, buf.length() - 1);
        }
    }
    final Registrar registrar = new Registrar();
    for (ImmutableBitSet groupSet : groupSets) {
        filters.put(groupSet, registrar.register(groupSet));
    }
    if (!predicates.isEmpty()) {
        List<Pair<RexNode, String>> nodes = new ArrayList<>();
        for (RelDataTypeField f : relBuilder.peek().getRowType().getFieldList()) {
            final RexNode node = rexBuilder.makeInputRef(f.getType(), f.getIndex());
            nodes.add(Pair.of(node, f.getName()));
        }
        nodes.addAll(predicates);
        relBuilder.project(Pair.left(nodes), Pair.right(nodes));
    }
    int x = groupCount + indicatorCount;
    final List<AggregateCall> newCalls = new ArrayList<>();
    for (AggregateCall aggCall : aggregate.getAggCallList()) {
        final int newFilterArg;
        final List<Integer> newArgList;
        final SqlAggFunction aggregation;
        if (!aggCall.isDistinct()) {
            aggregation = SqlStdOperatorTable.MIN;
            newArgList = ImmutableIntList.of(x++);
            newFilterArg = filters.get(aggregate.getGroupSet());
        } else {
            aggregation = aggCall.getAggregation();
            newArgList = remap(fullGroupSet, aggCall.getArgList());
            newFilterArg = filters.get(ImmutableBitSet.of(aggCall.getArgList()).setIf(aggCall.filterArg, aggCall.filterArg >= 0).union(aggregate.getGroupSet()));
        }
        final AggregateCall newCall = AggregateCall.create(aggregation, false, newArgList, newFilterArg, aggregate.getGroupCount(), distinct, null, aggCall.name);
        newCalls.add(newCall);
    }
    relBuilder.aggregate(relBuilder.groupKey(remap(fullGroupSet, aggregate.getGroupSet()), aggregate.indicator, remap(fullGroupSet, aggregate.getGroupSets())), newCalls);
    relBuilder.convert(aggregate.getRowType(), true);
    call.transformTo(relBuilder.build());
}