| From: | Matt Miller <mattm(at)epx(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | josh(at)agliodbs(dot)com, pgsql-hackers(at)postgresql(dot)org, Tony Caduto <tony_caduto(at)amsoftwaredesign(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
| Subject: | Re: 8.1 and syntax checking at create time |
| Date: | 2005-08-31 19:43:45 |
| Message-ID: | 1125517425.3640.34.camel@dbamm01-linux |
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| Thread: | |
| Lists: | pgsql-hackers |
On Wed, 2005-08-31 at 15:29 -0400, Tom Lane wrote:
> Matt Miller <mattm(at)epx(dot)com> writes:
> > I don't remember the last time I intended to write code that referenced
> > something that did not exist in the database.
>
> Almost every day, people try to write stuff like
>
> CREATE TEMP TABLE foo ... ;
> INSERT INTO foo ... ;
> etc etc
> DROP TABLE foo ;
Point taken.
PL/SQL requires all DDL to be dynamic SQL. For example:
execute immediate 'drop table foo';
The stuff inside the string is pretty-much ignored at compile time.
Maybe, then, my idealized PL/pgSQL compiler always allows DDL to
reference any object, but DML is checked against the catalog.
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