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Example 1 with DESCENDING

use of org.apache.calcite.rel.RelFieldCollation.Direction.DESCENDING in project hazelcast by hazelcast.

the class IndexResolver method buildCollationTrait.

/**
 * Builds a collation with collation fields re-mapped according to the table projections.
 *
 * @param scan  the logical map scan
 * @param index the index
 * @param ascs  the collation of index fields
 * @return the new collation trait
 */
private static RelCollation buildCollationTrait(FullScanLogicalRel scan, MapTableIndex index, List<Boolean> ascs) {
    if (index.getType() != SORTED) {
        return RelCollations.of(Collections.emptyList());
    }
    List<RelFieldCollation> fields = new ArrayList<>(index.getFieldOrdinals().size());
    HazelcastTable table = OptUtils.extractHazelcastTable(scan);
    // Extract those projections that are direct input field references. Only those can be used
    // for index access
    List<Integer> fieldProjects = table.getProjects().stream().filter(expr -> expr instanceof RexInputRef).map(inputRef -> ((RexInputRef) inputRef).getIndex()).collect(Collectors.toList());
    for (int i = 0; i < index.getFieldOrdinals().size(); ++i) {
        Integer indexFieldOrdinal = index.getFieldOrdinals().get(i);
        int remappedIndexFieldOrdinal = fieldProjects.indexOf(indexFieldOrdinal);
        if (remappedIndexFieldOrdinal == -1) {
            // The field is not used in the query
            break;
        }
        Direction direction = ascs.get(i) ? ASCENDING : DESCENDING;
        RelFieldCollation fieldCollation = new RelFieldCollation(remappedIndexFieldOrdinal, direction);
        fields.add(fieldCollation);
    }
    return RelCollations.of(fields);
}
Also used : RangeSet(com.google.common.collect.RangeSet) QueryDataTypeFamily(com.hazelcast.sql.impl.type.QueryDataTypeFamily) OptUtils.getCluster(com.hazelcast.jet.sql.impl.opt.OptUtils.getCluster) QueryParameterMetadata(com.hazelcast.sql.impl.QueryParameterMetadata) Collections.singletonList(java.util.Collections.singletonList) HazelcastTable(com.hazelcast.jet.sql.impl.schema.HazelcastTable) TypeConverters(com.hazelcast.query.impl.TypeConverters) RexUtil(org.apache.calcite.rex.RexUtil) RexNode(org.apache.calcite.rex.RexNode) Map(java.util.Map) IndexRangeFilter(com.hazelcast.sql.impl.exec.scan.index.IndexRangeFilter) QueryDataTypeUtils(com.hazelcast.sql.impl.type.QueryDataTypeUtils) HASH(com.hazelcast.config.IndexType.HASH) IndexEqualsFilter(com.hazelcast.sql.impl.exec.scan.index.IndexEqualsFilter) RexToExpressionVisitor(com.hazelcast.jet.sql.impl.opt.physical.visitor.RexToExpressionVisitor) PlanNodeFieldTypeProvider(com.hazelcast.sql.impl.plan.node.PlanNodeFieldTypeProvider) RelTraitSet(org.apache.calcite.plan.RelTraitSet) SqlKind(org.apache.calcite.sql.SqlKind) HazelcastTypeUtils(com.hazelcast.jet.sql.impl.validate.types.HazelcastTypeUtils) RexLiteral(org.apache.calcite.rex.RexLiteral) Collection(java.util.Collection) Range(com.google.common.collect.Range) Set(java.util.Set) RelFieldCollation(org.apache.calcite.rel.RelFieldCollation) Collectors(java.util.stream.Collectors) IndexInFilter(com.hazelcast.sql.impl.exec.scan.index.IndexInFilter) RexInputRef(org.apache.calcite.rex.RexInputRef) List(java.util.List) FullScanLogicalRel(com.hazelcast.jet.sql.impl.opt.logical.FullScanLogicalRel) BoundType(com.google.common.collect.BoundType) RelCollation(org.apache.calcite.rel.RelCollation) MapTableIndex(com.hazelcast.sql.impl.schema.map.MapTableIndex) TRUE(java.lang.Boolean.TRUE) RexCall(org.apache.calcite.rex.RexCall) OptUtils.createRelTable(com.hazelcast.jet.sql.impl.opt.OptUtils.createRelTable) Iterables(com.google.common.collect.Iterables) IndexFilterValue(com.hazelcast.sql.impl.exec.scan.index.IndexFilterValue) IndexFilter(com.hazelcast.sql.impl.exec.scan.index.IndexFilter) QueryDataType(com.hazelcast.sql.impl.type.QueryDataType) HashMap(java.util.HashMap) POSITIVE_INFINITY(com.hazelcast.query.impl.CompositeValue.POSITIVE_INFINITY) RelOptUtil(org.apache.calcite.plan.RelOptUtil) RelOptTable(org.apache.calcite.plan.RelOptTable) ArrayList(java.util.ArrayList) HashSet(java.util.HashSet) IndexType(com.hazelcast.config.IndexType) BiTuple(com.hazelcast.internal.util.BiTuple) Expression(com.hazelcast.sql.impl.expression.Expression) Nonnull(javax.annotation.Nonnull) ComparableIdentifiedDataSerializable(com.hazelcast.query.impl.ComparableIdentifiedDataSerializable) RelCollations(org.apache.calcite.rel.RelCollations) RexToExpression(com.hazelcast.jet.sql.impl.opt.physical.visitor.RexToExpression) RelDataType(org.apache.calcite.rel.type.RelDataType) FALSE(java.lang.Boolean.FALSE) HazelcastRelOptTable(com.hazelcast.jet.sql.impl.schema.HazelcastRelOptTable) RelCollationTraitDef(org.apache.calcite.rel.RelCollationTraitDef) SqlTypeName(org.apache.calcite.sql.type.SqlTypeName) SORTED(com.hazelcast.config.IndexType.SORTED) Util.toList(com.hazelcast.jet.impl.util.Util.toList) RexBuilder(org.apache.calcite.rex.RexBuilder) OptUtils(com.hazelcast.jet.sql.impl.opt.OptUtils) IndexScanMapPhysicalRel(com.hazelcast.jet.sql.impl.opt.physical.IndexScanMapPhysicalRel) RelNode(org.apache.calcite.rel.RelNode) Direction(org.apache.calcite.rel.RelFieldCollation.Direction) ASCENDING(org.apache.calcite.rel.RelFieldCollation.Direction.ASCENDING) TreeMap(java.util.TreeMap) NEGATIVE_INFINITY(com.hazelcast.query.impl.CompositeValue.NEGATIVE_INFINITY) ConstantExpression(com.hazelcast.sql.impl.expression.ConstantExpression) DESCENDING(org.apache.calcite.rel.RelFieldCollation.Direction.DESCENDING) Collections(java.util.Collections) RelFieldCollation(org.apache.calcite.rel.RelFieldCollation) ArrayList(java.util.ArrayList) RexInputRef(org.apache.calcite.rex.RexInputRef) HazelcastTable(com.hazelcast.jet.sql.impl.schema.HazelcastTable) Direction(org.apache.calcite.rel.RelFieldCollation.Direction)

Aggregations

BoundType (com.google.common.collect.BoundType)1 Iterables (com.google.common.collect.Iterables)1 Range (com.google.common.collect.Range)1 RangeSet (com.google.common.collect.RangeSet)1 IndexType (com.hazelcast.config.IndexType)1 HASH (com.hazelcast.config.IndexType.HASH)1 SORTED (com.hazelcast.config.IndexType.SORTED)1 BiTuple (com.hazelcast.internal.util.BiTuple)1 Util.toList (com.hazelcast.jet.impl.util.Util.toList)1 OptUtils (com.hazelcast.jet.sql.impl.opt.OptUtils)1 OptUtils.createRelTable (com.hazelcast.jet.sql.impl.opt.OptUtils.createRelTable)1 OptUtils.getCluster (com.hazelcast.jet.sql.impl.opt.OptUtils.getCluster)1 FullScanLogicalRel (com.hazelcast.jet.sql.impl.opt.logical.FullScanLogicalRel)1 IndexScanMapPhysicalRel (com.hazelcast.jet.sql.impl.opt.physical.IndexScanMapPhysicalRel)1 RexToExpression (com.hazelcast.jet.sql.impl.opt.physical.visitor.RexToExpression)1 RexToExpressionVisitor (com.hazelcast.jet.sql.impl.opt.physical.visitor.RexToExpressionVisitor)1 HazelcastRelOptTable (com.hazelcast.jet.sql.impl.schema.HazelcastRelOptTable)1 HazelcastTable (com.hazelcast.jet.sql.impl.schema.HazelcastTable)1 HazelcastTypeUtils (com.hazelcast.jet.sql.impl.validate.types.HazelcastTypeUtils)1 ComparableIdentifiedDataSerializable (com.hazelcast.query.impl.ComparableIdentifiedDataSerializable)1