On 7/6/23 04:19, gzh wrote:
>
> Hi,
>
>
> I upgraded the version of PostgreSQL from 12.6 to 12.13,
>
> when I execute the sql below , the to_char function caused the following
> error.
>
>
> ---------------SQL------------------
>
> select TO_CHAR('1000000');
>
Isn't '1000000' already a character string?
How do you convert a character string to a character string?
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Born in Arizona, moved to Babylonia.