Re: Deparsing DDL command strings - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Deparsing DDL command strings
Date
Msg-id 8552.1349447095@sss.pgh.pa.us
Whole thread Raw
In response to Re: Deparsing DDL command strings  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: Deparsing DDL command strings  (Andres Freund <andres@2ndquadrant.com>)
List pgsql-hackers
Andres Freund <andres@2ndquadrant.com> writes:
> On Friday, October 05, 2012 04:03:03 PM Tom Lane wrote:
>> Why don't you just pass the original query string, instead of writing
>> a mass of maintenance-requiring new code to reproduce it?

> Its not easy to know which tables are referenced in e.g. an ALTER TABLE 
> statement if the original statement didn't schema qualify everything.

What he's talking about is deparsing the raw grammar output, which by
definition contains no more information than is in the query string.
Deparsing post-parse-analysis trees is a different problem (for which
code already exists, unlike the raw-tree case).
        regards, tom lane



pgsql-hackers by date:

Previous
From: Andres Freund
Date:
Subject: Re: Deparsing DDL command strings
Next
From: Alvaro Herrera
Date:
Subject: Re: ALTER command reworks