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e549148a19
issue: #29988 This pr adds full-support for wildcard pattern matching from end to end. Before this pr, the users can only use prefix match in their expression, for example, "like 'prefix%'". With this pr, more flexible syntax can be combined. To do so, this pr makes these changes: - 1. support regex query both on index and raw data; - 2. translate the pattern matching to regex query, so that it can be handled by the regex query logic; - 3. loose the limit of the expression parsing, which allows general pattern matching syntax; With the support of regex query in segcore backend, we can also add mysql-like `REGEXP` syntax later easily. --------- Signed-off-by: longjiquan <jiquan.long@zilliz.com>
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License
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#pragma once
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#include "pb/plan.pb.h"
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namespace milvus::test {
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inline auto
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GenColumnInfo(int64_t field_id,
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proto::schema::DataType field_type,
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bool auto_id,
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bool is_pk) {
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auto column_info = new proto::plan::ColumnInfo();
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column_info->set_field_id(field_id);
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column_info->set_data_type(field_type);
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column_info->set_is_autoid(auto_id);
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column_info->set_is_primary_key(is_pk);
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return column_info;
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}
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template <typename T>
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auto
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GenGenericValue(T value) {
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auto generic = new proto::plan::GenericValue();
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if constexpr (std::is_same_v<T, bool>) {
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generic->set_bool_val(static_cast<bool>(value));
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} else if constexpr (std::is_integral_v<T>) {
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generic->set_int64_val(static_cast<int64_t>(value));
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} else if constexpr (std::is_floating_point_v<T>) {
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generic->set_float_val(static_cast<float>(value));
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} else if constexpr (std::is_same_v<T, std::string>) {
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generic->set_string_val(static_cast<std::string>(value));
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} else {
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static_assert(always_false<T>);
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}
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return generic;
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}
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template <typename T>
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auto
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GenUnaryRangeExpr(proto::plan::OpType op, T& value) {
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auto unary_range_expr = new proto::plan::UnaryRangeExpr();
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unary_range_expr->set_op(op);
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auto generic = GenGenericValue(value);
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unary_range_expr->set_allocated_value(generic);
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return unary_range_expr;
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}
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inline auto
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GenExpr() {
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return std::make_unique<proto::plan::Expr>();
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}
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} // namespace milvus::test
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