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

Example 1 with RecordQueryTextIndexPlan

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

the class RecordQueryPlanner method planText.

@Nullable
private ScoredPlan planText(@Nonnull CandidateScan candidateScan, @Nonnull Index index, @Nonnull QueryComponent filter, @Nullable KeyExpression sort) {
    if (sort != null) {
        // TODO: Full Text: Sorts are not supported with full text queries (https://github.com/FoundationDB/fdb-record-layer/issues/55)
        return null;
    }
    FilterSatisfiedMask filterMask = FilterSatisfiedMask.of(filter);
    final TextScan scan = TextScanPlanner.getScanForQuery(index, filter, false, filterMask);
    if (scan == null) {
        return null;
    }
    // TODO: Check the rest of the fields of the text index expression to see if the sort and unsatisfied filters can be helped.
    RecordQueryPlan plan = new RecordQueryTextIndexPlan(index.getName(), scan, candidateScan.reverse);
    // Add a type filter if the index is over more types than those the query specifies
    Set<String> possibleTypes = getPossibleTypes(index);
    plan = addTypeFilterIfNeeded(candidateScan, plan, possibleTypes);
    // is "strict", it must be surrounded be a filter plan.
    if (scan.getTextComparison() instanceof Comparisons.TextContainsAllPrefixesComparison) {
        Comparisons.TextContainsAllPrefixesComparison textComparison = (Comparisons.TextContainsAllPrefixesComparison) scan.getTextComparison();
        if (textComparison.isStrict()) {
            plan = new RecordQueryFilterPlan(plan, filter);
            filterMask.setSatisfied(true);
        }
    }
    // than other indexes.
    return new ScoredPlan(plan, filterMask.getUnsatisfiedFilters(), Collections.emptyList(), 10, scan.createsDuplicates(), null);
}

Example 2 with RecordQueryTextIndexPlan

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

the class PlanOrderingKey method forPlan.

@Nullable
public static PlanOrderingKey forPlan(@Nonnull RecordMetaData metaData, @Nonnull RecordQueryPlan queryPlan, @Nullable KeyExpression primaryKey) {
    if (primaryKey == null) {
        return null;
    }
    while (queryPlan instanceof RecordQueryFilterPlan) {
        queryPlan = ((RecordQueryFilterPlan) queryPlan).getInnerPlan();
    }
    if (queryPlan instanceof RecordQueryPlanWithIndex) {
        final RecordQueryPlanWithIndex indexPlan = (RecordQueryPlanWithIndex) queryPlan;
        final Index index = metaData.getIndex(indexPlan.getIndexName());
        final List<KeyExpression> keys = new ArrayList<>(index.getRootExpression().normalizeKeyForPositions());
        int pkeyStart = keys.size();
        int pKeyTail = pkeyStart;
        // Primary keys come after index value keys, unless they were already part of it.
        for (KeyExpression pkey : primaryKey.normalizeKeyForPositions()) {
            int pos = keys.indexOf(pkey);
            if (pos < 0) {
                keys.add(pkey);
            } else if (pkeyStart > pos) {
                pkeyStart = pos;
            }
        }
        final int prefixSize;
        if (indexPlan instanceof RecordQueryIndexPlan) {
            prefixSize = ((RecordQueryIndexPlan) indexPlan).getComparisons().getEqualitySize();
        } else if (indexPlan instanceof RecordQueryTextIndexPlan) {
            final TextScan textScan = ((RecordQueryTextIndexPlan) indexPlan).getTextScan();
            int groupingSize = textScan.getGroupingComparisons() != null ? textScan.getGroupingComparisons().getEqualitySize() : 0;
            int suffixSize = textScan.getSuffixComparisons() != null ? textScan.getSuffixComparisons().getEqualitySize() : 0;
            if (textScan.getTextComparison().getType().isEquality()) {
                // Can use the equality comparisons in the grouping columns and any columns after the text index
                // plus the text column itself.
                prefixSize = groupingSize + suffixSize + 1;
            } else {
                // by the token that the prefix scan just so happened to hit.
                return null;
            }
        } else {
            // Some unknown index plan. Maybe this should throw an error?
            return null;
        }
        return new PlanOrderingKey(keys, prefixSize, pkeyStart, pKeyTail);
    } else if (queryPlan instanceof RecordQueryScanPlan) {
        final RecordQueryScanPlan scanPlan = (RecordQueryScanPlan) queryPlan;
        return new PlanOrderingKey(primaryKey.normalizeKeyForPositions(), scanPlan.getComparisons().getEqualitySize(), 0, 0);
    } else if (queryPlan instanceof RecordQueryIntersectionPlan) {
        return forComparisonKey(((RecordQueryIntersectionPlan) queryPlan).getComparisonKey(), primaryKey);
    } else if (queryPlan instanceof RecordQueryUnionPlan) {
        return forComparisonKey(((RecordQueryUnionPlan) queryPlan).getComparisonKey(), primaryKey);
    } else {
        return null;
    }
}