On 02.12.21 22:22, Tom Lane wrote:
> My first thought about fixing point 1 was to put "char" into some
> other typcategory, but that turns out to break some of psql's
> catalog queries, with results like:
>
> regression=# \dp
> ERROR: operator is not unique: unknown || "char"
> LINE 16: E' (' || polcmd || E'):'
> ^
> HINT: Could not choose a best candidate operator. You might need to add explicit type casts.
Could we add explicit casts (like polcmd::text) here? Or would it break
too much?