Re: proposal: possibility to read dumped table's name from file

Daniel Gustafsson <daniel@yesql.se>

From: Daniel Gustafsson <daniel@yesql.se>
To: "Gregory Stark (as CFM)" <stark.cfm@gmail.com>
Cc: Julien Rouhaud <rjuju123@gmail.com>, Pavel Stehule <pavel.stehule@gmail.com>, Justin Pryzby <pryzby@telsasoft.com>, Andres Freund <andres@anarazel.de>, Andrew Dunstan <andrew@dunslane.net>, John Naylor <john.naylor@enterprisedb.com>, Erik Rijkers <er@xs4all.nl>, Tom Lane <tgl@sss.pgh.pa.us>, Alvaro Herrera <alvherre@2ndquadrant.com>, Tomas Vondra <tomas.vondra@enterprisedb.com>, Dean Rasheed <dean.a.rasheed@gmail.com>, Stephen Frost <sfrost@snowman.net>, Surafel Temesgen <surafel3000@gmail.com>, vignesh C <vignesh21@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2023-03-06T21:20:32Z
Lists: pgsql-hackers
> On 6 Mar 2023, at 21:45, Gregory Stark (as CFM) <stark.cfm@gmail.com> wrote:
> 
> So.... This patch has been through a lot of commitfests. And it really
> doesn't seem that hard to resolve -- Pavel has seemingly been willing
> to go along whichever way the wind has been blowing but honestly it
> kind of seems like he's just gotten drive-by suggestions and he's put
> a lot of work into trying to satisfy them.

Agreed.

> He implemented --include-tables-from-file=... etc. Then he implemented
> a hand-written parser for a DSL to select objects, then he implemented
> a bison parser, then he went back to the hand-written parser.

Well, kind of.  I was trying to take the patch to the finishing line but was
uncomfortable with the hand written parser so I implemented a parser in Bison
to replace it with.  Not that hand-written parsers are bad per se (or that my
bison parser was perfect), but reading quoted identifiers across line
boundaries tend to require a fair amount of handwritten code.  Pavel did not
object to this version, but it was objected to by two other committers.

At this point [0] I stepped down from trying to finish it as the approach I was
comfortable didn't gain traction (which is totally fine).

Downthread from this the patch got a lot of reviews from Julien with the old
parser back in place.

> Can we get some consensus on whether the DSL looks right

I would consider this pretty settled.

> and whether the hand-written parser is sensible.

This is the part where a committer who wants to pursue the hand-written parser
need to step up. With the amount of review received it's hopefully pretty close.

--
Daniel Gustafsson

[0] 098531E1-FBA9-4B7D-884E-0A4363EEE6DF@yesql.se




Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Fix array subscript warnings

  2. Read include/exclude commands for dump/restore from file

  3. Allow records to span multiple lines in pg_hba.conf and pg_ident.conf.