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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "searchiterator.h"
#include <vespa/searchlib/predicate/predicate_posting_list.h>
#include <vespa/searchlib/common/condensedbitvectors.h>
#include <vespa/searchlib/predicate/predicate_tree_annotator.h>
#include <vector>
namespace search::fef {
class TermFieldMatchData;
class TermFieldMatchDataArray;
}
namespace search::queryeval {
class SkipMinFeature
{
public:
using UP = std::unique_ptr<SkipMinFeature>;
virtual ~SkipMinFeature() { }
VESPA_DLL_LOCAL virtual uint32_t next() = 0;
static SkipMinFeature::UP create(const uint8_t * min_feature, const uint8_t * kv, size_t sz);
};
/**
* Search iterator implementing the interval algorithm for boolean
* search. It operates on PredicatePostingLists, as defined above.
*/
using IntervalRange = uint16_t;
class PredicateSearch : public SearchIterator {
SkipMinFeature::UP _skip;
std::vector<predicate::PredicatePostingList::UP> _posting_lists;
std::vector<uint16_t> _sorted_indexes;
std::vector<uint16_t> _sorted_indexes_merge_buffer;
std::vector<uint32_t> _doc_ids;
std::vector<uint32_t> _intervals;
std::vector<uint64_t> _subqueries;
uint64_t *_subquery_markers;
bool * _visited;
fef::TermFieldMatchData *_termFieldMatchData;
const uint8_t * _min_feature_vector;
const IntervalRange * _interval_range_vector;
VESPA_DLL_LOCAL bool advanceOneTo(uint32_t doc_id, size_t index);
VESPA_DLL_LOCAL void advanceAllTo(uint32_t doc_id);
VESPA_DLL_LOCAL bool evaluateHit(uint32_t doc_id, uint32_t k);
VESPA_DLL_LOCAL size_t sortIntervals(uint32_t doc_id, uint32_t k);
VESPA_DLL_LOCAL void skipMinFeature(uint32_t doc_id) __attribute__((noinline));
public:
PredicateSearch(const uint8_t * minFeature,
const IntervalRange * interval_range_vector,
IntervalRange max_interval_range,
CondensedBitVector::CountVector kV,
std::vector<predicate::PredicatePostingList::UP> posting_lists,
const fef::TermFieldMatchDataArray &tfmda);
~PredicateSearch();
void doSeek(uint32_t doc_id) override;
void doUnpack(uint32_t doc_id) override;
};
}
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