| From: | Marcos Pegoraro <marcos(at)f10(dot)com(dot)br> |
|---|---|
| To: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> |
| Cc: | 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 10:49:09 |
| Message-ID: | CAB-JLwaZV-tMdq=5T3JnjDsOMGecAAH_k9_T9SFep=LwcD4A+Q@mail.gmail.com |
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| Lists: | pgsql-hackers |
>
> 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
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