Horton

Re: Dubious usage of TYPCATEGORY_STRING

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2021-12-07T15:59:45Z
Lists: pgsql-hackers 
On Thu, Dec 2, 2021 at 4:22 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> An example of the reasons not to treat these types as being
> general-purpose strings can be seen at [1], where the "char"
> type has acquired some never-intended cast behaviors.  Taking
> that to an extreme, we currently accept
>
> regression=# select '(1,2)'::point::"char";
>  char
> ------
>  (
> (1 row)

What's wrong with that?

-- 
Robert Haas
EDB: http://www.enterprisedb.com

Commits

  1. Create a new type category for "internal use" types.