be/src/exprs/vcompound_pred.h

Source
// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once
#include <gen_cpp/Opcodes_types.h>

#include <algorithm>
#include <cstdint>
#include <memory>

#include "common/logging.h"
#include "common/status.h"
#include "core/assert_cast.h"
#include "core/column/column.h"
#include "core/column/column_nullable.h"
#include "exprs/vectorized_fn_call.h"
#include "exprs/vexpr_context.h"
#include "exprs/vexpr_fwd.h"
#include "storage/index/inverted/query/scoring/collection_similarity.h"
#include "storage/index/zone_map/zonemap_eval_context.h"
#include "util/defer_op.h"
#include "util/simd/bits.h"

namespace doris {

inline std::string compound_operator_to_string(TExprOpcode::type op) {
    if (op == TExprOpcode::COMPOUND_AND) {
        return "and";
    } else if (op == TExprOpcode::COMPOUND_OR) {
        return "or";
    } else {
        return "not";
    }
}

inline bool inverted_index_status_allows_row_fallback(const Status& status) {
    DORIS_CHECK(!status.ok());
    return status.is<ErrorCode::INVERTED_INDEX_BYPASS>() ||
           status.is<ErrorCode::INVERTED_INDEX_EVALUATE_SKIPPED>() ||
           status.is<ErrorCode::INVERTED_INDEX_FILE_CORRUPTED>() ||
           status.is<ErrorCode::INVERTED_INDEX_FILE_NOT_FOUND>() ||
           status.is<ErrorCode::NOT_IMPLEMENTED_ERROR>();
}

class VCompoundPred : public VectorizedFnCall {
    ENABLE_FACTORY_CREATOR(VCompoundPred);

public:
    VCompoundPred(const TExprNode& node) : VectorizedFnCall(node) {
        _op = node.opcode;
        _fn.name.function_name = compound_operator_to_string(_op);
        _expr_name = fmt::format("VCompoundPredicate[{}](arguments={},return={})",
                                 _fn.name.function_name, get_child_names(), _data_type->get_name());
    }

#ifdef BE_TEST
    VCompoundPred() = default;
#endif

    const std::string& expr_name() const override { return _expr_name; }
    Status clone_node(VExprSPtr* cloned_expr) const override {
        DORIS_CHECK(cloned_expr != nullptr);
        *cloned_expr = VCompoundPred::create_shared(clone_texpr_node());
        return Status::OK();
    }

    bool can_execute_on_raw_fixed_values(const DataTypePtr& data_type,
                                         int column_id) const override {
        return !_children.empty() &&
               (_op == TExprOpcode::COMPOUND_AND || _op == TExprOpcode::COMPOUND_OR) &&
               std::ranges::all_of(_children, [&](const VExprSPtr& child) {
                   return child->can_execute_on_raw_fixed_values(data_type, column_id);
               });
    }

    Status execute_on_raw_fixed_values(const uint8_t* values, size_t num_values, size_t value_width,
                                       const DataTypePtr& data_type, int column_id,
                                       uint8_t* matches) const override {
        if (!can_execute_on_raw_fixed_values(data_type, column_id)) {
            return Status::NotSupported("Compound predicate cannot evaluate raw fixed values");
        }
        return _execute_raw_compound(
                num_values, matches, [&](const VExprSPtr& child, uint8_t* child_matches) {
                    return child->execute_on_raw_fixed_values(values, num_values, value_width,
                                                              data_type, column_id, child_matches);
                });
    }

    bool can_execute_on_raw_binary_values(const DataTypePtr& data_type,
                                          int column_id) const override {
        return !_children.empty() &&
               (_op == TExprOpcode::COMPOUND_AND || _op == TExprOpcode::COMPOUND_OR) &&
               std::ranges::all_of(_children, [&](const VExprSPtr& child) {
                   return child->can_execute_on_raw_binary_values(data_type, column_id);
               });
    }

    Status execute_on_raw_binary_values(const StringRef* values, size_t num_values,
                                        const DataTypePtr& data_type, int column_id,
                                        uint8_t* matches) const override {
        if (!can_execute_on_raw_binary_values(data_type, column_id)) {
            return Status::NotSupported("Compound predicate cannot evaluate raw binary values");
        }
        return _execute_raw_compound(
                num_values, matches, [&](const VExprSPtr& child, uint8_t* child_matches) {
                    return child->execute_on_raw_binary_values(values, num_values, data_type,
                                                               column_id, child_matches);
                });
    }

    bool raw_predicate_result_for_null() const override {
        if (_op != TExprOpcode::COMPOUND_AND && _op != TExprOpcode::COMPOUND_OR) {
            // A Boolean keep bit cannot distinguish FALSE from UNKNOWN, so negating a child's
            // collapsed result is not SQL-correct. NOT remains residual and rejects NULL here.
            return false;
        }
        if (_op == TExprOpcode::COMPOUND_AND) {
            return std::ranges::all_of(_children, [](const VExprSPtr& child) {
                return child->raw_predicate_result_for_null();
            });
        }
        return std::ranges::any_of(_children, [](const VExprSPtr& child) {
            return child->raw_predicate_result_for_null();
        });
    }

    bool can_evaluate_zonemap_filter() const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND:
            return std::ranges::any_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_zonemap_filter();
            });
        case TExprOpcode::COMPOUND_OR:
            return !_children.empty() && std::ranges::all_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_zonemap_filter();
            });
        case TExprOpcode::COMPOUND_NOT:
            return false;
        default:
            return false;
        }
    }

    ZoneMapFilterResult evaluate_zonemap_filter(const ZoneMapEvalContext& ctx) const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND: {
            for (const auto& child : _children) {
                if (!child->can_evaluate_zonemap_filter()) {
                    continue;
                }
                if (child->evaluate_zonemap_filter(ctx) == ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kNoMatch;
                }
            }
            return ZoneMapFilterResult::kMayMatch;
        }
        case TExprOpcode::COMPOUND_OR: {
            for (const auto& child : _children) {
                DORIS_CHECK(child->can_evaluate_zonemap_filter());
                if (child->evaluate_zonemap_filter(ctx) != ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kMayMatch;
                }
            }
            return ZoneMapFilterResult::kNoMatch;
        }
        case TExprOpcode::COMPOUND_NOT:
            return unsupported_zonemap_filter(ctx);
        default:
            return unsupported_zonemap_filter(ctx);
        }
    }

    bool can_evaluate_dictionary_filter() const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND:
            return std::ranges::any_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_dictionary_filter();
            });
        case TExprOpcode::COMPOUND_OR:
            return !_children.empty() && std::ranges::all_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_dictionary_filter();
            });
        default:
            return false;
        }
    }

    bool is_safe_to_execute_on_selected_rows() const override {
        // Boolean composition introduces no data-dependent failure of its own. Reuse the generic
        // child walk so AND/OR remain eligible only when every nested expression is independently
        // safe; applying VectorizedFnCall's scalar-function allowlist to this structural node would
        // incorrectly disable selected-row execution for otherwise safe predicates.
        return VExpr::is_safe_to_execute_on_selected_rows();
    }

    ZoneMapFilterResult evaluate_dictionary_filter(
            const DictionaryEvalContext& ctx) const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND:
            for (const auto& child : _children) {
                if (!child->can_evaluate_dictionary_filter()) {
                    continue;
                }
                if (child->evaluate_dictionary_filter(ctx) == ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kNoMatch;
                }
            }
            return ZoneMapFilterResult::kMayMatch;
        case TExprOpcode::COMPOUND_OR:
            for (const auto& child : _children) {
                DORIS_CHECK(child->can_evaluate_dictionary_filter());
                if (child->evaluate_dictionary_filter(ctx) != ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kMayMatch;
                }
            }
            return ZoneMapFilterResult::kNoMatch;
        default:
            return ZoneMapFilterResult::kUnsupported;
        }
    }

    bool can_evaluate_bloom_filter() const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND:
            return std::ranges::any_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_bloom_filter();
            });
        case TExprOpcode::COMPOUND_OR:
            return !_children.empty() && std::ranges::all_of(_children, [](const VExprSPtr& child) {
                return child->can_evaluate_bloom_filter();
            });
        default:
            return false;
        }
    }

    ZoneMapFilterResult evaluate_bloom_filter(const BloomFilterEvalContext& ctx) const override {
        switch (_op) {
        case TExprOpcode::COMPOUND_AND:
            for (const auto& child : _children) {
                if (!child->can_evaluate_bloom_filter()) {
                    continue;
                }
                if (child->evaluate_bloom_filter(ctx) == ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kNoMatch;
                }
            }
            return ZoneMapFilterResult::kMayMatch;
        case TExprOpcode::COMPOUND_OR:
            for (const auto& child : _children) {
                DORIS_CHECK(child->can_evaluate_bloom_filter());
                if (child->evaluate_bloom_filter(ctx) != ZoneMapFilterResult::kNoMatch) {
                    return ZoneMapFilterResult::kMayMatch;
                }
            }
            return ZoneMapFilterResult::kNoMatch;
        default:
            return ZoneMapFilterResult::kUnsupported;
        }
    }

    // NOLINTNEXTLINE(readability-function-size,readability-function-cognitive-complexity): Keep each operator's bitmap and score updates together.
    Status evaluate_inverted_index(VExprContext* context, uint32_t segment_num_rows) override {
        segment_v2::InvertedIndexResultBitmap res;
        bool all_pass = true;
        auto index_context = context->get_index_context();
        auto query_context = index_context->get_index_query_context();
        auto parent_similarity =
                query_context != nullptr ? query_context->collection_similarity : nullptr;
        CollectionSimilarityPtr branch_similarity;
        if (parent_similarity != nullptr) {
            branch_similarity = std::make_shared<CollectionSimilarity>();
            query_context->collection_similarity = branch_similarity;
        }
        Defer restore_similarity {[&]() {
            if (branch_similarity != nullptr) {
                query_context->collection_similarity = parent_similarity;
            }
        }};

        switch (_op) {
        case TExprOpcode::COMPOUND_OR: {
            for (const auto& child : _children) {
                if (Status st = child->evaluate_inverted_index(context, segment_num_rows);
                    !st.ok()) {
                    LOG(ERROR) << "expr:" << child->expr_name()
                               << " evaluate_inverted_index error:" << st.to_string();
                    if (!inverted_index_status_allows_row_fallback(st)) {
                        return st;
                    }
                    all_pass = false;
                    continue;
                }
                auto inverted_index_context = context->get_index_context();
                if (inverted_index_context->has_index_result_for_expr(child.get())) {
                    const auto* index_result =
                            inverted_index_context->get_index_result_for_expr(child.get());
                    if (res.is_empty()) {
                        res = *index_result;
                    } else {
                        res |= *index_result;
                    }
                    if (branch_similarity == nullptr) {
                        if (res.get_data_bitmap()->cardinality() == segment_num_rows) {
                            break; // Early exit if result is full
                        }
                    }
                } else {
                    all_pass = false;
                }
            }
            break;
        }
        case TExprOpcode::COMPOUND_AND: {
            for (const auto& child : _children) {
                if (Status st = child->evaluate_inverted_index(context, segment_num_rows);
                    !st.ok()) {
                    LOG(ERROR) << "expr:" << child->expr_name()
                               << " evaluate_inverted_index error:" << st.to_string();
                    if (!inverted_index_status_allows_row_fallback(st)) {
                        return st;
                    }
                    all_pass = false;
                    continue;
                }
                if (context->get_index_context()->has_index_result_for_expr(child.get())) {
                    const auto* index_result =
                            context->get_index_context()->get_index_result_for_expr(child.get());
                    if (res.is_empty()) {
                        res = *index_result;
                    } else {
                        res &= *index_result;
                    }

                    if (res.get_data_bitmap()->isEmpty()) {
                        break; // Early exit if result is empty
                    }
                } else {
                    all_pass = false;
                }
            }
            break;
        }
        case TExprOpcode::COMPOUND_NOT: {
            const auto& child = _children[0];
            Status st = child->evaluate_inverted_index(context, segment_num_rows);
            if (!st.ok()) {
                LOG(ERROR) << "expr:" << child->expr_name()
                           << " evaluate_inverted_index error:" << st.to_string();
                return st;
            }

            if (context->get_index_context()->has_index_result_for_expr(child.get())) {
                const auto* index_result =
                        context->get_index_context()->get_index_result_for_expr(child.get());
                roaring::Roaring full_result;
                full_result.addRange(0, segment_num_rows);
                res = index_result->op_not(&full_result);
            } else {
                all_pass = false;
            }
            break;
        }
        default:
            return Status::NotSupported(
                    "Compound operator must be AND, OR, or NOT to execute with inverted index.");
        }

        if (branch_similarity != nullptr && _op != TExprOpcode::COMPOUND_NOT) {
            auto scores = branch_similarity->release_scores();
            if (!scores.empty() && (!all_pass || res.is_empty())) {
                return Status::Error<ErrorCode::INVERTED_INDEX_NOT_SUPPORTED>(
                        "Cannot score a compound predicate with incomplete index evaluation");
            }
            if (all_pass && !res.is_empty()) {
                DORIS_CHECK(res.get_data_bitmap() != nullptr);
                parent_similarity->merge_scores(scores, *res.get_data_bitmap());
            }
        }
        if (all_pass && !res.is_empty()) {
            index_context->set_index_result_for_expr(this, res);
        }
        return Status::OK();
    }

    Status execute_column_impl(VExprContext* context, const Block* block, const Selector* selector,
                               size_t count, ColumnPtr& result_column) const override {
        if (fast_execute(context, selector, count, result_column)) {
            return Status::OK();
        }
        if (get_num_children() == 1 || _has_const_child()) {
            return VectorizedFnCall::execute_column_impl(context, block, selector, count,
                                                         result_column);
        }

        ColumnPtr lhs_column;
        RETURN_IF_ERROR(_children[0]->execute_column(context, block, selector, count, lhs_column));
        lhs_column = lhs_column->convert_to_full_column_if_const();
        size_t size = lhs_column->size();

        bool lhs_is_nullable = lhs_column->is_nullable();
        auto [lhs_data_column, lhs_null_map] =
                _get_raw_data_and_null_map(lhs_column, lhs_is_nullable);
        size_t filted = simd::count_zero_num((int8_t*)lhs_data_column, size);
        bool lhs_all_true = (filted == 0);
        bool lhs_all_false = (filted == size);

        bool lhs_all_is_not_null = false;
        if (lhs_is_nullable) {
            filted = simd::count_zero_num((int8_t*)lhs_null_map, size);
            lhs_all_is_not_null = (filted == size);
        }

        ColumnPtr rhs_column = nullptr;
        const uint8_t* __restrict rhs_data_column = nullptr;
        const uint8_t* __restrict rhs_null_map = nullptr;
        bool rhs_is_nullable = false;
        bool rhs_all_true = false;
        bool rhs_all_false = false;
        bool rhs_all_is_not_null = false;
        bool result_is_nullable = _data_type->is_nullable();

        auto get_rhs_colum = [&]() {
            if (!rhs_column) {
                RETURN_IF_ERROR(
                        _children[1]->execute_column(context, block, selector, count, rhs_column));
                rhs_column = rhs_column->convert_to_full_column_if_const();
                rhs_is_nullable = rhs_column->is_nullable();
                auto rhs_nullable_column = _get_raw_data_and_null_map(rhs_column, rhs_is_nullable);
                rhs_data_column = rhs_nullable_column.first;
                rhs_null_map = rhs_nullable_column.second;
                size_t filted = simd::count_zero_num((int8_t*)rhs_data_column, size);
                rhs_all_true = (filted == 0);
                rhs_all_false = (filted == size);
                if (rhs_is_nullable) {
                    filted = simd::count_zero_num((int8_t*)rhs_null_map, size);
                    rhs_all_is_not_null = (filted == size);
                }
            }
            return Status::OK();
        };

        auto return_result_column_id = [&](ColumnPtr& arg_column) {
            result_column = std::move(*arg_column).mutate();
            if (result_is_nullable && !result_column->is_nullable()) {
                result_column = make_nullable(result_column);
            }
        };

        auto create_null_map_column = [&](ColumnPtr& null_map_column,
                                          const uint8_t* __restrict null_map_data) {
            if (null_map_data == nullptr) {
                null_map_column = ColumnUInt8::create(size, 0);
                null_map_data =
                        assert_cast<const ColumnUInt8*>(null_map_column.get())->get_data().data();
            }
            return null_map_data;
        };

        auto vector_vector = [&]<bool is_and_op>() {
            MutableColumnPtr mutable_result_column;
            uint8_t* __restrict result_data_column = nullptr;
            const uint8_t* __restrict other_data_column = rhs_data_column;
            if (lhs_column->use_count() == 1) {
                mutable_result_column = IColumn::mutate(std::move(lhs_column));
                result_data_column =
                        assert_cast<ColumnUInt8*>(mutable_result_column.get())->get_data().data();
            } else if (rhs_column->use_count() == 1) {
                mutable_result_column = IColumn::mutate(std::move(rhs_column));
                result_data_column =
                        assert_cast<ColumnUInt8*>(mutable_result_column.get())->get_data().data();
                other_data_column = lhs_data_column;
            } else {
                mutable_result_column = lhs_column->clone_resized(size);
                result_data_column =
                        assert_cast<ColumnUInt8*>(mutable_result_column.get())->get_data().data();
            }

            do_not_null_pred<is_and_op>(result_data_column, other_data_column, size);
            result_column = std::move(mutable_result_column);
        };
        auto vector_vector_null = [&]<bool is_and_op>() {
            auto col_res = ColumnUInt8::create(size);
            auto col_nulls = ColumnUInt8::create(size);

            auto* __restrict res_datas = col_res->get_data().data();
            auto* __restrict res_nulls = col_nulls->get_data().data();
            ColumnPtr temp_null_map = nullptr;
            // maybe both children are nullable / or one of children is nullable
            auto* __restrict lhs_null_map_tmp = create_null_map_column(temp_null_map, lhs_null_map);
            auto* __restrict rhs_null_map_tmp = create_null_map_column(temp_null_map, rhs_null_map);
            auto* __restrict lhs_data_column_tmp = lhs_data_column;
            auto* __restrict rhs_data_column_tmp = rhs_data_column;

            do_null_pred<is_and_op>(lhs_data_column_tmp, lhs_null_map_tmp, rhs_data_column_tmp,
                                    rhs_null_map_tmp, res_datas, res_nulls, size);

            result_column = ColumnNullable::create(std::move(col_res), std::move(col_nulls));
        };

        // false and NULL ----> 0
        // true  and NULL ----> NULL
        if (_op == TExprOpcode::COMPOUND_AND) {
            //1. not null column: all data is false
            //2. nullable column: null map all is not null
            if ((lhs_all_false && !lhs_is_nullable) || (lhs_all_false && lhs_all_is_not_null)) {
                // false and any = false, return lhs
                return_result_column_id(lhs_column);
            } else {
                RETURN_IF_ERROR(get_rhs_colum());

                if ((lhs_all_true && !lhs_is_nullable) ||    //not null column
                    (lhs_all_true && lhs_all_is_not_null)) { //nullable column
                                                             // true and any = any, return rhs

                    return_result_column_id(rhs_column);
                } else if ((rhs_all_false && !rhs_is_nullable) ||
                           (rhs_all_false && rhs_all_is_not_null)) {
                    // any and false = false, return rhs
                    return_result_column_id(rhs_column);
                } else if ((rhs_all_true && !rhs_is_nullable) ||
                           (rhs_all_true && rhs_all_is_not_null)) {
                    // any and true = any, return lhs
                    return_result_column_id(lhs_column);
                } else {
                    if (!result_is_nullable) {
                        vector_vector.template operator()<true>();
                    } else {
                        vector_vector_null.template operator()<true>();
                    }
                }
            }
        } else if (_op == TExprOpcode::COMPOUND_OR) {
            // true  or NULL ----> 1
            // false or NULL ----> NULL
            if ((lhs_all_true && !lhs_is_nullable) || (lhs_all_true && lhs_all_is_not_null)) {
                // true or any = true, return lhs
                return_result_column_id(lhs_column);
            } else {
                RETURN_IF_ERROR(get_rhs_colum());
                if ((lhs_all_false && !lhs_is_nullable) || (lhs_all_false && lhs_all_is_not_null)) {
                    // false or any = any, return rhs
                    return_result_column_id(rhs_column);
                } else if ((rhs_all_true && !rhs_is_nullable) ||
                           (rhs_all_true && rhs_all_is_not_null)) {
                    // any or true = true, return rhs
                    return_result_column_id(rhs_column);
                } else if ((rhs_all_false && !rhs_is_nullable) ||
                           (rhs_all_false && rhs_all_is_not_null)) {
                    // any or false = any, return lhs
                    return_result_column_id(lhs_column);
                } else {
                    if (!result_is_nullable) {
                        vector_vector.template operator()<false>();
                    } else {
                        vector_vector_null.template operator()<false>();
                    }
                }
            }
        } else {
            return Status::InternalError("Compound operator must be AND or OR.");
        }

        DCHECK_EQ(result_column->size(), count);
        return Status::OK();
    }

    double execute_cost() const override {
        double cost = 0.3;
        for (const auto& child : _children) {
            cost += child->execute_cost();
        }
        return cost;
    }

private:
    template <typename ExecuteChild>
    Status _execute_raw_compound(size_t num_values, uint8_t* matches,
                                 ExecuteChild&& execute_child) const {
        if (_op == TExprOpcode::COMPOUND_AND) {
            for (const auto& child : _children) {
                RETURN_IF_ERROR(execute_child(child, matches));
            }
            return Status::OK();
        }

        // Each execution context owns its expression tree. Retaining masks on the OR node avoids
        // N+1 row-sized allocations for every decoder fragment, while nested OR nodes keep
        // independent buffers and therefore cannot overwrite their parent's in-flight state.
        _raw_combined_scratch.resize(num_values);
        std::ranges::fill(_raw_combined_scratch, 0);
        for (const auto& child : _children) {
            // resize_fill() initializes only newly appended bytes; explicitly reset a reused mask
            // so matches from an earlier page fragment cannot leak into this OR evaluation.
            _raw_child_scratch.resize(num_values);
            std::ranges::fill(_raw_child_scratch, 1);
            RETURN_IF_ERROR(execute_child(child, _raw_child_scratch.data()));
            for (size_t row = 0; row < num_values; ++row) {
                _raw_combined_scratch[row] |= _raw_child_scratch[row];
            }
        }
        // Raw kernels receive an existing selection mask, so composition must preserve rows that
        // an earlier conjunct already rejected instead of replacing the caller's mask.
        for (size_t row = 0; row < num_values; ++row) {
            matches[row] &= _raw_combined_scratch[row];
        }
        constexpr size_t MAX_RETAINED_RAW_MASK_BYTES = 1UL << 20;
        if (_raw_combined_scratch.capacity() > MAX_RETAINED_RAW_MASK_BYTES) {
            IColumn::Filter().swap(_raw_combined_scratch);
        }
        if (_raw_child_scratch.capacity() > MAX_RETAINED_RAW_MASK_BYTES) {
            IColumn::Filter().swap(_raw_child_scratch);
        }
        return Status::OK();
    }

    mutable IColumn::Filter _raw_combined_scratch;
    mutable IColumn::Filter _raw_child_scratch;

    static inline constexpr uint8_t apply_and_null(UInt8 a, UInt8 l_null, UInt8 b, UInt8 r_null) {
        // (<> && false) is false, (true && NULL) is NULL
        return (l_null & r_null) | (r_null & (l_null ^ a)) | (l_null & (r_null ^ b));
    }
    static inline constexpr uint8_t apply_or_null(UInt8 a, UInt8 l_null, UInt8 b, UInt8 r_null) {
        // (<> || true) is true, (false || NULL) is NULL
        return (l_null & r_null) | (r_null & (r_null ^ a)) | (l_null & (l_null ^ b));
    }

    template <bool is_and>
    void static do_not_null_pred(uint8_t* __restrict lhs, const uint8_t* __restrict rhs,
                                 size_t size) {
#ifdef NDEBUG
#if defined(__clang__)
#pragma clang loop vectorize(enable)
#elif defined(__GNUC__) && (__GNUC__ >= 5)
#pragma GCC ivdep
#endif
#endif
        for (size_t i = 0; i < size; ++i) {
            if constexpr (is_and) {
                lhs[i] &= rhs[i];
            } else {
                // Logical OR must produce a canonical Boolean instead of preserving input bits.
                lhs[i] = (lhs[i] | rhs[i]) != 0;
            }
        }
    }

    template <bool is_and>
    void static do_null_pred(const uint8_t* __restrict lhs_data, const uint8_t* __restrict lhs_null,
                             const uint8_t* __restrict rhs_data, const uint8_t* __restrict rhs_null,
                             uint8_t* __restrict res_data, uint8_t* __restrict res_null,
                             size_t size) {
#ifdef NDEBUG
#if defined(__clang__)
#pragma clang loop vectorize(enable)
#elif defined(__GNUC__) && (__GNUC__ >= 5)
#pragma GCC ivdep
#endif
#endif
        for (size_t i = 0; i < size; ++i) {
            if constexpr (is_and) {
                res_null[i] = apply_and_null(lhs_data[i], lhs_null[i], rhs_data[i], rhs_null[i]);
                res_data[i] = lhs_data[i] & rhs_data[i];
            } else {
                res_null[i] = apply_or_null(lhs_data[i], lhs_null[i], rhs_data[i], rhs_null[i]);
                // A NULL row may carry an arbitrary nested byte. If the result remains NULL the
                // byte is ignored; otherwise normalization prevents it from becoming visible.
                res_data[i] = (lhs_data[i] | rhs_data[i]) != 0;
            }
        }
    }

    bool _has_const_child() const {
        return std::ranges::any_of(_children,
                                   [](const VExprSPtr& arg) -> bool { return arg->is_constant(); });
    }

    std::pair<const uint8_t*, const uint8_t*> _get_raw_data_and_null_map(
            const ColumnPtr& column, bool has_nullable_column) const {
        if (has_nullable_column) {
            const auto* nullable_column = assert_cast<const ColumnNullable*>(column.get());
            auto* data_column =
                    assert_cast<const ColumnUInt8*>(nullable_column->get_nested_column_ptr().get())
                            ->get_data()
                            .data();
            auto* null_map = nullable_column->get_null_map_column_ptr()->get_data().data();
            return std::make_pair(data_column, null_map);
        } else {
            auto* data_column = assert_cast<const ColumnUInt8*>(column.get())->get_data().data();
            return std::make_pair(data_column, nullptr);
        }
    }

    TExprOpcode::type _op;
};

} // namespace doris

Coverage Report

Created: 2026-10-16 22:52