Examples with RecordQueryFetchFromPartialRecordPlan com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan used on opensource projects

Example 1 with RecordQueryFetchFromPartialRecordPlan

use of com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan in project fdb-record-layer by FoundationDB.

the class PushInJoinThroughFetchRule method onMatch.

@Override
public void onMatch(@Nonnull PlannerRuleCall call) {
    final PlannerBindings bindings = call.getBindings();
    final RecordQueryInJoinPlan inJoinPlan = bindings.get(getMatcher());
    final RecordQueryFetchFromPartialRecordPlan fetchPlan = bindings.get(fetchPlanMatcher);
    final RecordQueryPlan innerPlan = bindings.get(innerPlanMatcher);
    final RecordQueryPlanWithChild pushedInJoinPlan = inJoinPlan.withChild(innerPlan);
    final var newFetchPlan = new RecordQueryFetchFromPartialRecordPlan(pushedInJoinPlan, fetchPlan.getPushValueFunction());
    call.yield(call.ref(newFetchPlan));
}

Example 2 with RecordQueryFetchFromPartialRecordPlan

use of com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan in project fdb-record-layer by FoundationDB.

the class RecordQueryPlannerSubstitutionVisitor method availableFields.

@Nonnull
public static AvailableFields availableFields(@Nonnull RecordMetaData recordMetaData, @Nonnull PlannableIndexTypes indexTypes, @Nullable KeyExpression commonPrimaryKey, @Nonnull RecordQueryPlan plan) {
    if (plan instanceof RecordQueryPlanWithIndex) {
        RecordQueryPlanWithIndex indexPlan = (RecordQueryPlanWithIndex) plan;
        Index index = recordMetaData.getIndex(indexPlan.getIndexName());
        final Collection<RecordType> recordTypes = recordMetaData.recordTypesForIndex(index);
        if (recordTypes.size() != 1) {
            return AvailableFields.NO_FIELDS;
        }
        final RecordType recordType = Iterables.getOnlyElement(recordTypes);
        return AvailableFields.fromIndex(recordType, index, indexTypes, commonPrimaryKey);
    } else if (plan instanceof RecordQueryFetchFromPartialRecordPlan) {
        RecordQueryFetchFromPartialRecordPlan fetchPlan = (RecordQueryFetchFromPartialRecordPlan) plan;
        return fetchPlan.getChild().getAvailableFields();
    }
    return AvailableFields.NO_FIELDS;
}

Example 3 with RecordQueryFetchFromPartialRecordPlan

use of com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan in project fdb-record-layer by FoundationDB.

the class RecordQueryPlannerSubstitutionVisitor method removeIndexFetch.

@Nullable
public static RecordQueryPlan removeIndexFetch(@Nonnull RecordMetaData recordMetaData, @Nonnull PlannableIndexTypes indexTypes, @Nullable KeyExpression commonPrimaryKey, @Nonnull RecordQueryPlan plan, @Nonnull Set<KeyExpression> requiredFields) {
    if (plan instanceof RecordQueryPlanWithIndex) {
        RecordQueryPlanWithIndex indexPlan = (RecordQueryPlanWithIndex) plan;
        Index index = recordMetaData.getIndex(indexPlan.getIndexName());
        final Collection<RecordType> recordTypes = recordMetaData.recordTypesForIndex(index);
        if (recordTypes.size() != 1) {
            return null;
        }
        final RecordType recordType = Iterables.getOnlyElement(recordTypes);
        AvailableFields fieldsFromIndex = AvailableFields.fromIndex(recordType, index, indexTypes, commonPrimaryKey);
        Set<KeyExpression> fields = new HashSet<>(requiredFields);
        if (commonPrimaryKey != null) {
            // Need the primary key, even if it wasn't one of the explicit result fields.
            fields.addAll(commonPrimaryKey.normalizeKeyForPositions());
        }
        if (fieldsFromIndex.containsAll(fields)) {
            final IndexKeyValueToPartialRecord keyValueToPartialRecord = fieldsFromIndex.buildIndexKeyValueToPartialRecord(recordType).build();
            if (keyValueToPartialRecord != null) {
                return new RecordQueryCoveringIndexPlan(indexPlan, recordType.getName(), fieldsFromIndex, keyValueToPartialRecord);
            }
        }
    } else if (plan instanceof RecordQueryFetchFromPartialRecordPlan) {
        RecordQueryFetchFromPartialRecordPlan fetchPlan = (RecordQueryFetchFromPartialRecordPlan) plan;
        if (fetchPlan.getChild().getAvailableFields().containsAll(requiredFields)) {
            return ((RecordQueryFetchFromPartialRecordPlan) plan).getChild();
        }
    }
    return null;
}

Example 4 with RecordQueryFetchFromPartialRecordPlan

use of com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan in project fdb-record-layer by FoundationDB.

the class UnionVisitor method postVisit.

@Nonnull
@Override
public RecordQueryPlan postVisit(@Nonnull final RecordQueryPlan recordQueryPlan) {
    if (recordQueryPlan instanceof RecordQueryUnionPlanBase) {
        RecordQueryUnionPlanBase unionPlan = (RecordQueryUnionPlanBase) recordQueryPlan;
        final Set<KeyExpression> requiredFields = unionPlan.getRequiredFields();
        boolean shouldPullOutFilter = false;
        QueryComponent filter = null;
        if (unionPlan.getChildren().stream().allMatch(child -> child instanceof RecordQueryFilterPlan)) {
            filter = ((RecordQueryFilterPlan) unionPlan.getChildren().get(0)).getConjunctedFilter();
            // needed for lambda expression
            final QueryComponent finalFilter = filter;
            shouldPullOutFilter = unionPlan.getChildren().stream().allMatch(plan -> ((RecordQueryFilterPlan) plan).getConjunctedFilter().equals(finalFilter));
        }
        List<ExpressionRef<RecordQueryPlan>> newChildren = new ArrayList<>(unionPlan.getChildren().size());
        for (RecordQueryPlan plan : unionPlan.getChildren()) {
            if (shouldPullOutFilter) {
                // Check if the plan under the filter can have its index fetch removed.
                if (!(plan instanceof RecordQueryFilterPlan)) {
                    throw new RecordCoreException("serious logic error: thought this was a filter plan but it wasn't");
                }
                plan = ((RecordQueryFilterPlan) plan).getChild();
            }
            @Nullable RecordQueryPlan newPlan = removeIndexFetch(plan, requiredFields);
            if (newPlan == null) {
                // can't remove index fetch, so give up
                return recordQueryPlan;
            }
            newChildren.add(GroupExpressionRef.of(newPlan));
        }
        RecordQueryPlan newUnionPlan = new RecordQueryFetchFromPartialRecordPlan(unionPlan.withChildrenReferences(newChildren), TranslateValueFunction.unableToTranslate());
        if (shouldPullOutFilter) {
            return new RecordQueryFilterPlan(newUnionPlan, filter);
        } else {
            return newUnionPlan;
        }
    }
    return recordQueryPlan;
}

Example 5 with RecordQueryFetchFromPartialRecordPlan

use of com.apple.foundationdb.record.query.plan.plans.RecordQueryFetchFromPartialRecordPlan in project fdb-record-layer by FoundationDB.

the class UnorderedPrimaryKeyDistinctVisitor method postVisit.

@Nonnull
@Override
public RecordQueryPlan postVisit(@Nonnull final RecordQueryPlan recordQueryPlan) {
    if (recordQueryPlan instanceof RecordQueryUnorderedPrimaryKeyDistinctPlan) {
        RecordQueryUnorderedPrimaryKeyDistinctPlan distinctPlan = (RecordQueryUnorderedPrimaryKeyDistinctPlan) recordQueryPlan;
        @Nullable RecordQueryPlan newPlan = removeIndexFetch(distinctPlan.getChild(), Collections.emptySet());
        if (newPlan != null) {
            return new RecordQueryFetchFromPartialRecordPlan(new RecordQueryUnorderedPrimaryKeyDistinctPlan(newPlan), TranslateValueFunction.unableToTranslate());
        }
    }
    return recordQueryPlan;
}