Re: Planner debug views

Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Qingqing Zhou wrote:
>> The file name is not random, it is fixed so we can create foreign table
>> once and use it afterwards - I actually want to push them into
>> system_views.sql.

> Got that.  That seems fragile and not very convenient; I don't think
> forcing retries until no concurrent writers were using the same file is
> convenient at all.  When you need this facility the most, which is
> during slow planner runs, it is more likely that somebody else will
> overwrite your file.

FWIW, I would be very much against anything that requires going through
the filesystem for this.  That will create security/privilege issues that
we should not want to introduce, quite aside from the usability problems
Alvaro points out.
        regards, tom lane