[jira] [Issue Comment Deleted] (CALCITE-2791) Add the JSON_TYPE function

["Forward Xu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Forward Xu updated CALCITE-2791:
--------------------------------
    Comment: was deleted

(was: hi [~zhztheplayer] [~julianhyde] Thank you very much. I will revise it as soon as possible.

best

qianjin)

> Add the JSON_TYPE function
> --------------------------
>
>                 Key: CALCITE-2791
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2791
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Forward Xu
>            Assignee: Julian Hyde
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The data in json can be =, <, <=, >, >=, <>,! =, and <=>. But the data types in json can be diverse, so when you compare different types, you have a priority, and the high priority is greater than the low priority (you can view the types with the JSON_TYPE() function). The priorities are as follows:
>  BOOLEAN,ARRAY,OBJECT,STRING,INTEGE,DOUBLE,NULL
> Example Data:
> {"a":[10,true]}
> SELECT JSON_TYPE(v) AS c1,
> JSON_TYPE(a) AS c2,
> JSON_TYPE(b) AS c3,
> JSON_TYPE(c) AS c4 FROM (VALUES ('\{"a": [10, true]}','[10, true]', '10', 'true')) AS t(v, a, b, c) 
> limit 10;
> c1 c2 c3 c4
>  ======= ======= ======= =======
>  OBJECT ARRAY INTEGER BOOLEAN



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)