Examples with RelOptCluster org.apache.calcite.plan.RelOptCluster used on opensource projects

Example 1 with RelOptCluster

use of org.apache.calcite.plan.RelOptCluster in project hive by apache.

the class HiveSemiJoinRule method onMatch.

@Override
public void onMatch(RelOptRuleCall call) {
    LOG.debug("Matched HiveSemiJoinRule");
    final Project project = call.rel(0);
    final Join join = call.rel(1);
    final RelNode left = call.rel(2);
    final Aggregate aggregate = call.rel(3);
    final RelOptCluster cluster = join.getCluster();
    final RexBuilder rexBuilder = cluster.getRexBuilder();
    final ImmutableBitSet bits = RelOptUtil.InputFinder.bits(project.getProjects(), null);
    final ImmutableBitSet rightBits = ImmutableBitSet.range(left.getRowType().getFieldCount(), join.getRowType().getFieldCount());
    if (bits.intersects(rightBits)) {
        return;
    }
    final JoinInfo joinInfo = join.analyzeCondition();
    if (!joinInfo.rightSet().equals(ImmutableBitSet.range(aggregate.getGroupCount()))) {
        // By the way, neither a super-set nor a sub-set would work.
        return;
    }
    if (join.getJoinType() == JoinRelType.LEFT) {
        // since for LEFT join we are only interested in rows from LEFT we can get rid of right side
        call.transformTo(call.builder().push(left).project(project.getProjects(), project.getRowType().getFieldNames()).build());
        return;
    }
    if (join.getJoinType() != JoinRelType.INNER) {
        return;
    }
    if (!joinInfo.isEqui()) {
        return;
    }
    LOG.debug("All conditions matched for HiveSemiJoinRule. Going to apply transformation.");
    final List<Integer> newRightKeyBuilder = Lists.newArrayList();
    final List<Integer> aggregateKeys = aggregate.getGroupSet().asList();
    for (int key : joinInfo.rightKeys) {
        newRightKeyBuilder.add(aggregateKeys.get(key));
    }
    final ImmutableIntList newRightKeys = ImmutableIntList.copyOf(newRightKeyBuilder);
    final RelNode newRight = aggregate.getInput();
    final RexNode newCondition = RelOptUtil.createEquiJoinCondition(left, joinInfo.leftKeys, newRight, newRightKeys, rexBuilder);
    RelNode semi = null;
    // is not expected further down the pipeline. see jira for more details
    if (aggregate.getInput() instanceof HepRelVertex && ((HepRelVertex) aggregate.getInput()).getCurrentRel() instanceof Join) {
        Join rightJoin = (Join) (((HepRelVertex) aggregate.getInput()).getCurrentRel());
        List<RexNode> projects = new ArrayList<>();
        for (int i = 0; i < rightJoin.getRowType().getFieldCount(); i++) {
            projects.add(rexBuilder.makeInputRef(rightJoin, i));
        }
        RelNode topProject = call.builder().push(rightJoin).project(projects, rightJoin.getRowType().getFieldNames(), true).build();
        semi = call.builder().push(left).push(topProject).semiJoin(newCondition).build();
    } else {
        semi = call.builder().push(left).push(aggregate.getInput()).semiJoin(newCondition).build();
    }
    call.transformTo(call.builder().push(semi).project(project.getProjects(), project.getRowType().getFieldNames()).build());
}

Example 2 with RelOptCluster

use of org.apache.calcite.plan.RelOptCluster in project drill by apache.

the class SqlConverter method toRel.

public RelNode toRel(final SqlNode validatedNode) {
    final RexBuilder rexBuilder = new DrillRexBuilder(typeFactory);
    if (planner == null) {
        planner = new VolcanoPlanner(costFactory, settings);
        planner.setExecutor(new DrillConstExecutor(functions, util, settings));
        planner.clearRelTraitDefs();
        planner.addRelTraitDef(ConventionTraitDef.INSTANCE);
        planner.addRelTraitDef(DrillDistributionTraitDef.INSTANCE);
        planner.addRelTraitDef(RelCollationTraitDef.INSTANCE);
    }
    final RelOptCluster cluster = RelOptCluster.create(planner, rexBuilder);
    final SqlToRelConverter sqlToRelConverter = new SqlToRelConverter(new Expander(), validator, catalog, cluster, DrillConvertletTable.INSTANCE, sqlToRelConverterConfig);
    final RelNode rel = sqlToRelConverter.convertQuery(validatedNode, false, !isInnerQuery);
    final RelNode rel2 = sqlToRelConverter.flattenTypes(rel, true);
    final RelNode rel3 = RelDecorrelator.decorrelateQuery(rel2);
    return rel3;
}

Example 3 with RelOptCluster

use of org.apache.calcite.plan.RelOptCluster in project calcite by apache.

the class LogicalAggregate method create_.

private static LogicalAggregate create_(final RelNode input, boolean indicator, ImmutableBitSet groupSet, List<ImmutableBitSet> groupSets, List<AggregateCall> aggCalls) {
    final RelOptCluster cluster = input.getCluster();
    final RelTraitSet traitSet = cluster.traitSetOf(Convention.NONE);
    return new LogicalAggregate(cluster, traitSet, input, indicator, groupSet, groupSets, aggCalls);
}

Example 4 with RelOptCluster

use of org.apache.calcite.plan.RelOptCluster in project calcite by apache.

the class LogicalCorrelate method create.

/**
 * Creates a LogicalCorrelate.
 */
public static LogicalCorrelate create(RelNode left, RelNode right, CorrelationId correlationId, ImmutableBitSet requiredColumns, SemiJoinType joinType) {
    final RelOptCluster cluster = left.getCluster();
    final RelTraitSet traitSet = cluster.traitSetOf(Convention.NONE);
    return new LogicalCorrelate(cluster, traitSet, left, right, correlationId, requiredColumns, joinType);
}

Example 5 with RelOptCluster

use of org.apache.calcite.plan.RelOptCluster in project calcite by apache.

the class RelMdPredicates method getPredicates.

/**
 * Infers predicates for a Union.
 */
public RelOptPredicateList getPredicates(Union union, RelMetadataQuery mq) {
    RexBuilder rexBuilder = union.getCluster().getRexBuilder();
    Map<String, RexNode> finalPreds = new HashMap<>();
    List<RexNode> finalResidualPreds = new ArrayList<>();
    for (int i = 0; i < union.getInputs().size(); i++) {
        RelNode input = union.getInputs().get(i);
        RelOptPredicateList info = mq.getPulledUpPredicates(input);
        if (info.pulledUpPredicates.isEmpty()) {
            return RelOptPredicateList.EMPTY;
        }
        Map<String, RexNode> preds = new HashMap<>();
        List<RexNode> residualPreds = new ArrayList<>();
        for (RexNode pred : info.pulledUpPredicates) {
            final String predDigest = pred.toString();
            if (i == 0) {
                preds.put(predDigest, pred);
                continue;
            }
            if (finalPreds.containsKey(predDigest)) {
                preds.put(predDigest, pred);
            } else {
                residualPreds.add(pred);
            }
        }
        // Add new residual preds
        finalResidualPreds.add(RexUtil.composeConjunction(rexBuilder, residualPreds, false));
        // Add those that are not part of the final set to residual
        for (Entry<String, RexNode> e : finalPreds.entrySet()) {
            if (!preds.containsKey(e.getKey())) {
                // This node was in previous union inputs, but it is not in this one
                for (int j = 0; j < i; j++) {
                    finalResidualPreds.set(j, RexUtil.composeConjunction(rexBuilder, Lists.newArrayList(finalResidualPreds.get(j), e.getValue()), false));
                }
            }
        }
        // Final preds
        finalPreds = preds;
    }
    List<RexNode> preds = new ArrayList<>(finalPreds.values());
    final RelOptCluster cluster = union.getCluster();
    final RexExecutor executor = Util.first(cluster.getPlanner().getExecutor(), RexUtil.EXECUTOR);
    final RelOptPredicateList predicates = RelOptPredicateList.EMPTY;
    final RexSimplify simplify = new RexSimplify(rexBuilder, predicates, true, executor);
    RexNode disjPred = simplify.simplifyOrs(finalResidualPreds);
    if (!disjPred.isAlwaysTrue()) {
        preds.add(disjPred);
    }
    return RelOptPredicateList.of(rexBuilder, preds);
}