content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * Licensed 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.
   */
  package com.alibaba.langengine.adbpg.vectorstore.mapper;
  
  import com.alibaba.langengine.adbpg.vectorstore.KnowledgeDO;
  import org.apache.ibatis.annotations.*;
  
  import java.util.List;
  
  /**
   * adbpostgres知识库mapper
   *
   * @author xiaoxuan.lp
   */
  @Mapper
  public interface AdbPostgresKnowledgeMapper {
  
  
      @Select("select content <-> #{query}::real[] AS distance, content_id, type, idx, row_content " +
              "from knowledge " +
              "where type = #{type} order by distance asc limit #{limit}")
      @Results(id = "knowledgeDO", value = {
              @Result(property="distance",  column="distance"),
              @Result(property="id",   column="id"),
              @Result(property="contentId",  column="content_id"),
              @Result(property="type", column="type"),
              @Result(property="idx", column="idx"),
              @Result(property="rowContent", column="row_content"),
      })
      List<KnowledgeDO> similaritySearch(@Param("query") String query,
                                         @Param("type") Integer type,
                                         @Param("limit") Integer limit);
  
      @Insert("insert into knowledge(content_id, type, content, idx, row_content)" +
              "values(#{contentId}, #{type}, #{content}::real[], #{idx}, #{rowContent})")
      @Options(useGeneratedKeys = true)
      Long insert(KnowledgeDO knowledgeDO);
  }
  