Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Is there a reason we don't use pg_type.typcategory to detect arrays in
> > Postgres 8.4? Right now I see this in pg_dump.c:
>
> typcategory is user-assignable and thus not too reliable; furthermore
> it wouldn't prove that the type is the array type for its typelem.
> (Consider things like point and name --- there can be multiple types
> with the same typelem, but only one is the real array type for that
> typelem.) The typelem back-link check is much safer.
Thanks; I will use the pg_dump code in pg_migrator then.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
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