pgsql: Enforce cube dimension limit in all cube construction functions

From: Alexander Korotkov <akorotkov(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Enforce cube dimension limit in all cube construction functions
Date: 2018-08-31 17:24:33
Message-ID: E1fvn9t-0000OC-R9@gemulon.postgresql.org
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Enforce cube dimension limit in all cube construction functions

contrib/cube has a limit to 100 dimensions for cube datatype. However, it's
not enforced everywhere, and one can actually construct cube with more than
100 dimensions having then trouble with dump/restore. This commit add checks
for dimensions limit in all functions responsible for cube construction.
Backpatch to all supported versions.

Reported-by: Andrew Gierth
Discussion: https://postgr.es/m/87va7uybt4.fsf%40news-spur.riddles.org.uk
Author: Andrey Borodin with small additions by me
Review: Tom Lane
Backpatch-through: 9.3

Branch
------
REL_11_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/36343e59b51165da542943d2043878737fbe910b

Modified Files
--------------
contrib/cube/cube.c | 34 ++++++++++++++++++++++++++++++++++
contrib/cube/expected/cube.out | 40 ++++++++++++++++++++++++++++++++++++++++
contrib/cube/sql/cube.sql | 20 +++++++++++++++++++-
3 files changed, 93 insertions(+), 1 deletion(-)

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