when we use 'explode_json_array_string', we should give an array string which element is still string. For example, your case is '[{"k1":"v1","k2":"v2"},{"k1":"v11","k2":"v22"}]', the first element of array is {"k1":"v1","k2":"v2"}, it is not a string becaus...
mysql> select k1, e1 from example1 lateral view explode_json_array_int('["a","b","c"]') tmp1 as e1 order by k1, e1; Empty set mysql> select k1, e1 from example1 lateral view explode_json_array_int('{"a": 3}') tmp1 as e1 order by k1, e1; Empty set mysql> select k1,...
Proposed changes change explode-json-array-xx func signature from string to json type to improve function behavior Issue Number: close #xxx
importorg.apache.spark.sql.SparkSessionvalspark=SparkSession.builder().appName("JSON to Array Explode Example").getOrCreate()valdata=Seq(("Alice",30,"""["reading", "painting", "traveling"]"""),("Bob",25,"""["swimming", "cooking"]"""))valdf=spark.createDataFrame(data).toDF("name...
MaxCompute JSON_EXPLODE函数支持将JSON数组或JSON对象中的每个元素拆解(展开)成多行记录,本文为您介绍JSON_EXPLODE函数的使用详情以及示例。
# 文件名crt_book_info_json.sqlcreatetablemyhive.json_test(id int comment 'id',str string comment '书籍信息')rowformat delimited fields terminated by''lines terminated by'\n';导入数据 1 {"name":"三国演义","price":"19.9","comment":["good","nice","ok"],"rating":{"customer01":"5...
from_json 函数返回具有 jsonStr和schema的结构值。语法: from_json(jsonStr, schema [, options]) 参数: jsonStr:指定 json 文档的 STRING 表达式。 schema:schema_of_json 函数的 STRING 表达式或调用。 opt…
hive 解析 jsonArray,且jsonArray数组中的个数未知【json_tuple,lateral view,explode】,例如:一个JSONArray为:[{"id":"1","name":"zhangsan"},{"id":"2","name":"lisi"},{"id":"3","name":"wangwu"},...]用get_json_object()处理这种并不是很友好:我们可以这样:SEL
$json_data = '{"apple": 1, "banana": 2, "orange": 3}'; $array = json_decode($json_data, true); print_r($array); 复制代码 使用ast_parse_code() 函数: ast_parse_code() 函数可以将 PHP 代码解析为抽象语法树(AST),然后您可以遍历和处理这个树结构。这对于处理复杂的 PHP 代码逻辑非常...
JSONSerde 总结 Hive函数高阶 UDTF之explode函数 explode语法功能 对于UDTF表生成函数,很多人难以理解什么叫做输入一行,输出多行。 为什么叫做表生成?能够产生表吗?下面我们就来学习Hive当做内置的一个非常著名的UDTF函数,名字叫做explode函数,中文戏称之为“爆炸函数”,可以炸开数据。 explode函数接收map或者array类型的...