榜单
服务器优惠
AI论文
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9.1 JSON
9.1. JSON 9.1.1. Approaches to JSON Support 支持JSON方法 9.1.1.1. POJO support 基于 POJO 9.1.1.2. JAXB based JSON support 基于 JAXB 9.1.1.3. Low-level based JSON support 低级的JSON解析和处理支持 ... -
The JSON object
The JSON object The JSON object It is expected that many websocket clients and servers will exchange data in JSON format. For Go programs this means that a Go object will be ma... -
Mapping JSON
Mapping between Representations: Mapping JSON to Java: Mapping Java to JSON: Mapping to Generic Types: Mapping to Polymorphic Types: Spin can deserialize JSON to Java objects... -
JSON querying
JSON querying API Submit a query URL Query parameters Responses Example query: topN Example response: topN Example query: groupBy Example response: groupBy Get segment ... -
JSON querying
JSON querying API Submit a query URL Query parameters Responses Example query: topN Example response: topN Example query: groupBy Example response: groupBy Get segment ... -
JSON functions
SQL JSON functions JSONPath syntax SQL JSON functions Druid supports nested columns, which provide optimized storage and indexes for nested data structures. See Nested columns ... -
JSON 类型
JSON 类型 使用限制 MySQL 兼容性 JSON 类型 JSON 类型可以存储 JSON 这种半结构化的数据，相比于直接将 JSON 存储为字符串，它的好处在于： 使用 Binary 格式进行序列化，对 JSON 的内部字段的查询、解析加快； 多了 JSON 合法性验证的步骤，只有合法的 JSON 文档才可以放入这个字段中； JSON ... -
JSON Functions
JSON_PARSE JSON_EXTRACT JSON_EXISTS_PATH JSON_TYPE JSON_ARRAY JSON_OBJECT JSON_QUOTE JSON_UNQUOTE JSON_VALID JSON_CONTAINS JSON_LENGTH GET_JSON_DOUBLE GET_JSON_INT GET... -
JSON functions
SQL JSON functions JSONPath syntax SQL JSON functions Druid supports nested columns, which provide optimized storage and indexes for nested data structures. See Nested columns ... -
JSON Type
JSON Type Syntax Applicable Operations Other Restrictions JSON Type Syntax Tag of type JSON create STable s1 ( ts timestamp , v1 int ) tags ( info json ); creat...