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help / color / mirror / Atom feedFrom: Peter Smith <[email protected]>
To: Nisha Moond <[email protected]>
Cc: shveta malik <[email protected]>
Cc: Amit Kapila <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: Support EXCEPT for TABLES IN SCHEMA publications
Date: Mon, 1 Jun 2026 17:24:07 +1000
Message-ID: <CAHut+PtkCS3TuVusC1yf0ZCcAci0NwAj3EwzNXXtnubeTn1+aQ@mail.gmail.com> (raw)
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Hi Nisha.
Review comments for v8-0001 and v8-0002.
======
git apply gives warnings.
1.
git apply ../patches_misc/v8-0001-Support-EXCEPT-clause-for-schema-level-publicatio.patch
../patches_misc/v8-0001-Support-EXCEPT-clause-for-schema-level-publicatio.patch:176:
space before tab in indent.
errmsg("relation \"%s\" is
already member of publication \"%s\"",
warning: 1 line adds whitespace errors.
======
src/bin/psql/tab-complete.in.c
On Sat, May 30, 2026 at 2:32 PM Nisha Moond <[email protected]> wrote:
>
...
> > 9.
> > BTW, the current code is not able to handle multiple schemas.
> >
> > So, this works:
> > test_pub=# CREATE PUBLICATION pub1 for TABLES IN SCHEMA myschema <TAB>
> > EXCEPT ( TABLE WITH (
> >
> > but, this doesn't do anything:
> > test_pub=# CREATE PUBLICATION pub1 for TABLES IN SCHEMA public, myschema <TAB>
> >
>
> I think the above preserves the existing behavior. Currently, we do
> not suggest "WITH (" after the second schema onwards. To support this
> properly, we would also need to handle "WITH (" suggestions for
> subsequent schema entries.
>
> I’ve created a top-up patch (patch-002) for this. I can merge it if we
> want to change the current behavior. Let me know your thoughts.
2.
Some scenarios are improved, but others do not work (either newly
broken or maybe they have been?).
TBH, I am unsure if the added complexity of patch 0002 was worth it. I
am going to pass on this for now and wait for other opinions.
e.g.
Good: (suggests schemas to use)
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA
CURRENT_SCHEMA information_schema myschema public
Bad: (does not suggest more schema to use)
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA public, <TAB HERE>
Good: (completes names of known schema)
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA my <TAB HERE>
becomes
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA myschema
Bad: (does not complete names of known schema)
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA public, my <TAB HERE>
Good: (suggest EXCEPT with single schema)
test_pub=# CREATE PUBLICATION pub1 FOR TABLES IN SCHEMA myschema
EXCEPT ( TABLE WITH (
Good: (suggest EXCEPT with multi schema)
test_pub=# CREATE PUBLICATION pub1 for TABLES IN SCHEMA public, myschema
EXCEPT ( TABLE WITH (
Bad: (doesn't work if the FOR TABLE precedes TABLES IN SCHEMA)
test_pub=# CREATE PUBLICATION pub1 FOR TABLE mytab, TABLES IN <TAB HERE>
======
Kind Regards,
Peter Smith.
Fujitsu Australia
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Subject: Re: Support EXCEPT for TABLES IN SCHEMA publications
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