Re: An interisting conundrum where tables have a column called "found"

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От Christoph Haller
Тема Re: An interisting conundrum where tables have a column called "found"
Дата
Msg-id 200310281321.OAA10057@rodos
обсуждение исходный текст
Ответ на An interisting conundrum where tables have a column called "found"  (endoid <endoid@endoid.net>)
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> 
> I am putting together a DB that records information about a set of web
> sites and how they link to one another. As one site refers to another, I
> monitor the first site and then record when I find the referred site.
> 
> [snip]
> 
> I also have a function called add_site that adds the newly found site.
> 
> So far so good.
> To test my code I wrote the INSERT statement by hand:
> insert into sa_site (site_id, found, host_uri) values
> (nextval('sa_site_id_seq'), 'now', 'www.endoid.net');
> 
> and everything worked fine when called from psql.
> 
> Then I added the code to my add_site function and got the following
> error:
> ensa1.1=> select add_site('www.endoid.net', 4, null );
> WARNING:  Error occurred while executing PL/pgSQL function add_site
> WARNING:  line 26 at SQL statement
> ERROR:  parser: parse error at or near "$1" at character 43
> 
> I looked and looked but couldn't find anything that could explain the
> error. Then, being somewhat used to Oracle I tried renaming the "found"
> column to "found_on". Oracle occasionally has discrepencies in its rules
> for the naming of objects, so I thought that something *similar* might
> be happening with PG. Anyways this change did work in my PL/pgSQL
> function.
> 
> Could you guys figure out where a general description of "please don't
> use keywords as column names even if you're allowed to at create time
> because something somewhere will throw an unintellligable error" should
> live on the site?
> 
There is a SQL Key Words section, and I remember when porting to 
postgres I saw complaints about a column named 'offset'. 
So I assume there is a key word checking function already in operation. 
Maybe it simply needs an update. 
Regards, Christoph 



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