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https://issues.apache.org/jira/browse/CALCITE-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Forward Xu updated CALCITE-2791:
--------------------------------
Description:
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
was:
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(v.a) AS c2,
JSON_TYPE(v.a[0]) AS c3,
JSON_TYPE(v.a[1]) AS c4
FROM VALUES ('
{"a": [10, true]}
') AS t(v);
c1 c2 c3 c4
======= ======= ======= =======
OBJECT ARRAY INTEGER BOOLEAN
> 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
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