samuelcolvin commented on issue #10180:
URL: https://github.com/apache/datafusion/issues/10180#issuecomment-2072538449
@jayzhan211 that doesn't work since the argument types don't tell you want
type will be returned.
e.g.:
* if the value in column `foo` is `{"x": "abc"}`, then `json_get(foo, 'x')`
will return a string
* but if the value in column `foo` is `{"x": 123}`, then `json_get(foo,
'x')` will return an integer
However I think I have a work around, I'm requiring a cast, so you have to
do `json_get(foo, 'x')::string` or `json_get(foo, 'x')::int`, then I'm using a
`FunctionRewrite` to rewrite the function from `json_get` to `json_get_str` or
`json_get_int`.
With that the only remaining issue is making the error less ugly and more
informative.
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