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• 为我sql JSON通往反面阵列的道路提供校正辛?
原标题:Correct syntax for mysql JSON path to traverse arrays?

我的问题是,在我sql s JSON数据类型搜索时,通过json阵列的内容进行搜索。

DB Structure

因此,如果在我sql的桌子上有两行,并有一个叫foo

第一行:

{
  "items": [
    {"type": "bar"}
  ]
}

第二行:

{
  "items": [
    {"type": "baz"}
  ]
}

Things that work

我会说:

select `foo`->"$.items[0].type" from `jsontest`

回复2个结果:barbaz

我会说:

select `id` from `jsontest` where `foo`->"$.items[0].type" = "bar"

页: 1

My Problem

mysql docs State, 你可以使用[*> ,“评估”JSON阵列中所有要素的价值”。

然而,以下疑问是零件:

select `id` from `jsontest` where `foo`->"$.items[*].type" = "bar"

我的询问有什么错误?

问题回答

提出以下问题:

select id, `foo`->"$.items[*].type[0]" from `jsontest`;

你的回程价值被显示为“[禁运]”,即JSON阵列。

select * from `jsontest` 
where `foo`->"$.items[*].type" = JSON_ARRAY( bar );

无论如何,以下询问也应奏效:

select id from `jsontest` where JSON_SEARCH(`foo`,  all , bar ) is not null;

我想你想要:

SELECT `id` FROM `jsontest` WHERE JSON_CONTAINS(`foo`->"$.items[*].type",  "bar" ,  $ )




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