Re: Cast jsonb to numeric, int, float, bool

Aleksander Alekseev <a(dot)alekseev(at)postgrespro(dot)ru> writes:

> Hello Teodor,
>
>> > Agree, something like "could not convert jsonb value to boolean type. jsonb
>> > value must be scalar boolean type"?
>>
>> I checked what error messages are used currently:
>>
>> ```
>> # select 123::int4::jsonb;
>> ERROR: cannot cast type integer to jsonb
>> LINE 1: select 123::int4::jsonb;
>> ```
>>
>> I suggest to follow the same template, i.e. "cannot cast type jsonb to
>> bool", etc.
>
> On second thought this message is misleading. We can cat jsonb to bool,
> the problem is that the document is not a bool value.

How about "cannot cast jsonb $json_type to $sql_type" where $json_type
is the type inside the jsonb (e.g. string, number, boolean, array,
object)?

- ilmari
--
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