Re: Fixes for missing schema qualifications

Noah Misch wrote:
> On Fri, Mar 09, 2018 at 04:55:38PM +0900, Michael Paquier wrote:
> > --- a/src/backend/catalog/information_schema.sql
> > +++ b/src/backend/catalog/information_schema.sql
> > @@ -186,7 +186,7 @@ CREATE FUNCTION _pg_interval_type(typid oid, mod int4) RETURNS text
> >      AS
> >  $$SELECT
> >    CASE WHEN $1 IN (1186) /* interval */
> > -           THEN upper(substring(format_type($1, $2) from 'interval[()0-9]* #"%#"' for '#'))
> > +           THEN pg_catalog.upper(substring(pg_catalog.format_type($1, $2) from 'interval[()0-9]* #"%#"' for '#'))
> >         ELSE null
> >    END$$;

> This qualifies some functions, but it leaves plenty of unqualified operators.

... and substring() ...

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