pgsql: Fix duplicate primary keys in partitions

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Fix duplicate primary keys in partitions
Date: 2018-10-04 14:50:10
Message-ID: E1g84x8-0005zx-9E@gemulon.postgresql.org
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Fix duplicate primary keys in partitions

When using the CREATE TABLE .. PARTITION OF syntax, it's possible to
cause a partition to get two primary keys if the parent already has one.
Tighten the check to disallow that.

Reported-by: Rajkumar Raghuwanshi
Author: Amul Sul
Discussion: https://postgr.es/m/CAKcux6=OnSV3-qd8Gb6W=KPPwcCz6Fe_O_MQYjTa24__Xn8XxA@mail.gmail.com

Branch
------
REL_11_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/ff347f8aff04865680c19ffc818460bb2afaad5b

Modified Files
--------------
src/backend/catalog/index.c | 10 +++++-----
src/test/regress/expected/indexing.out | 18 +++++++++++++++++-
src/test/regress/sql/indexing.sql | 9 ++++++++-
3 files changed, 30 insertions(+), 7 deletions(-)

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