创建索引,再次执行SQL查看执行计划create index idx_gin_search_json on user_ini_text using gin(to_tsvector(‘english’,user_name)); create index idx_gin_search_json on user_ini_text using gin(to_tsvector(‘english’,user_name)); 从上述执行计划看出走了索引, 并且执行时间降为 0.034 毫秒,性能...
-- 创建全文搜索配置CREATETEXTSEARCHCONFIGURATION english (COPY=english );ALTERTEXTSEARCHCONFIGURATION englishALTERMAPPINGFORword, hword, hword_partWITHenglish_stem;-- 创建全文搜索索引CREATEINDEXjsonb_search_idxONyour_tableUSINGGIN (to_tsvector('english', your_jsonb_column));-- 执行全文搜索查询SELECT...
select JSON_VALUE(PO_DOCUMENT ,'$.ShippingInstructions.Address') from J_PURCHASEORDER where JSON_VALUE(PO_DOCUMENT ,'$.PONumber' returning NUMBER(10)) -- 错误示例2:大小写错误,Name应为name select JSON_VALUE(PO_DOCUMENT ,'$.ShippingInstructions.Name') from J_PURCHASEORDER where JSON_VALUE(PO...
pg jsonb 是PostgreSQL 数据库系统中用于存储 JSON 数据的二进制格式类型。与普通的 json 类型相比,jsonb 存储的数据在插入或更新时会被自动转换成一种规范化的格式,并且支持索引和更高效的查询操作。这意味着使用 jsonb 类型可以更方便地进行数据的检索、排序和聚合等操作。 2. 给出pg jsonb查询的基本语法 ...
Open-source vector similarity search for PostgresStore your vectors with the rest of your data. Supports:exact and approximate nearest neighbor search single-precision, half-precision, binary, and sparse vectors L2 distance, inner product, cosine distance, L1 distance, Hamming distance, and Jaccard ...
README.md Added sparse search example [skip ci] Jan 12, 2025 package.json Updated packages Nov 12, 2024 tsconfig.json Removed experimental drizzle-orm module Jun 3, 2024 Repository files navigation README MIT license Security pgvector-node pgvector support for Node.js, Deno, and Bun (and Ty...
文本搜索类型(text search types) JSON 类型(JSON types) 数组类型(Array types) 组合类型(Composite types) 范围类型(range types) 领域类型(domain types) 长文预警--- 整数类型(integer types) integer,4字节,应该成为数字类型的首选,例如存储金额,可以以分为单位存储 smallint,2字节,更节省磁盘空间 bigint,8...
text Search postgis Geometry Currently supported pg features: inherits composite type (basic) aggregate functions window functions Large Object Pg_trgm ** Tested on PostgreSQL 11/12/13/14 with Slick 3.5.1. ** Java 8+ is required (except for play-json addon, which requires java 11+). Usage...
json_serialization_enable json_serialization_parse_nested_strings max_concurrency_scaling_clusters max_cursor_result_set_size mv_enable_aqmv_for_session navigate_super_null_on_error parse_super_null_on_error pg_federation_repeatable_read query_group search_path spectrum_enable_pseudo_columns enable_spec...
1、使用 json字段名->’$.json属性’ 进行查询条件 举个例子:如果我想查询deptLeader=张五的数据,那么sql语句如下: SELECT * from dept WHERE json_value->'$.deptLeaderId'='5'; 1. 查询出来的结果如下: 2、如果涉及多个条件也是支持的 比如我想查dept为“部门3”和deptLeaderId=5的数据,sql如下: ...