| From: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
|---|---|
| To: | Marcos Pegoraro <marcos(at)f10(dot)com(dot)br> |
| Cc: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Jaime Casanova <jcasanov(at)systemguards(dot)com(dot)ec>, Erik Rijkers <er(at)xs4all(dot)nl>, Gilles Darold <gilles(at)darold(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: Schema variables - new implementation for Postgres 15 |
| Date: | 2022-01-14 11:06:51 |
| Message-ID: | 20220114110651.7hc4naaimaqyy67h@jrouhaud |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi,
On Fri, Jan 14, 2022 at 07:49:09AM -0300, Marcos Pegoraro wrote:
> >
> > For example, if I define a variable called "relkind", then psql's \sv
> > meta-command is broken because the query it performs can't distinguish
> > between the column and the variable.
> >
> If variables use : as prefix you´ll never have these conflicts.
>
> select relkind from pg_class where relkind = :relkind
This is already used by psql client side variables, so this is not an option.
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