[doc]support to json function #2548
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yiguolei
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Jun 23, 2025
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| | Parameter | Description | | ||
| |-----------|-------------| | ||
| | value | The value to be converted to JSONB type. Can be one of the types compatible with JSON mapping. | |
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这里得说清楚value的类型是啥？得有一个白名单。
另外，这里可能别用表格了，表格比如要列举的value的类型可能就不好写。
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理论上这个函数不会直接返回一个 json 的null。
不过可以返回一个json的array，array里面有null。
null这个是参考pg的行为。
输入一个sql的null，返回的也是一个sql的null。
https://dbfiddle.uk/rY6jDsEA
yiguolei
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Jun 23, 2025
docs/sql-manual/sql-functions/scalar-functions/json-functions/to-json.md
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yiguolei
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docs/sql-manual/sql-functions/scalar-functions/json-functions/to-json.md
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yiguolei
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Jun 23, 2025
yiguolei
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Jun 24, 2025
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