Re: pg14 psql broke \d datname.nspname.relname

> On Apr 7, 2022, at 3:37 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> 
>> 
>> I don't know whether that's a bug fix for the existing code or some
>> new bit of functionality that \dconfig requires and nothing else
>> needs.
> 
> Well, \dconfig needs it because it would like foo.bar to get processed
> as just a name.  But I think it's a bug fix because as things stood,
> if the caller doesn't provide a schemavar and the pattern contains a
> dot, the code just silently throws away the dot and all to the left.
> That doesn't seem very sane, even if it is a longstanding behavior.

The patch submitted changes processSQLNamePattern() to return a dot count by reference.  It's up to the caller to decide whether to raise an error.  If you pass in no schemavar, and you get back dotcnt=2, you know it parsed it as a two part pattern, and you can pg_fatal(...) or ereport(ERROR, ...) or whatever.

It looks like I'll need to post a new version of the patch with an argument telling the function to ignore dots, but I'm not prepared to say that for sure. 

—
Mark Dilger
EnterpriseDB: http://www.enterprisedb.com
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