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Remove support for upgrading extensions from "unpackaged" state.

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Andres Freund pointed out that allowing non-superusers to run
"CREATE EXTENSION ... FROM unpackaged" has security risks, since
the unpackaged-to-1.0 scripts don't try to verify that the existing
objects they're modifying are what they expect.  Just attaching such
objects to an extension doesn't seem too dangerous, but some of them
do more than that.

We could have resolved this, perhaps, by still requiring superuser
privilege to use the FROM option.  However, it's fair to ask just what
we're accomplishing by continuing to lug the unpackaged-to-1.0 scripts
forward.  None of them have received any real testing since 9.1 days,
so they may not even work anymore (even assuming that one could still
load the previous "loose" object definitions into a v13 database).
And an installation that's trying to go from pre-9.1 to v13 or later
in one jump is going to have worse compatibility problems than whether
there's a trivial way to convert their contrib modules into extension
style.

Hence, let's just drop both those scripts and the core-code support
for "CREATE EXTENSION ... FROM".

Discussion: https://postgr.es/m/20200213233015.r6rnubcvl4egdh5r@alap3.anarazel.de
This commit is contained in:
Tom Lane
2020-02-19 16:59:14 -05:00
parent 2f9c46a32b
commit 70a7732007
84 changed files with 55 additions and 2428 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
contrib/seg/Makefile
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@ -8,7 +8,7 @@ OBJS = \
EXTENSION = seg
DATA = seg--1.1.sql seg--1.1--1.2.sql seg--1.2--1.3.sql \
seg--1.0--1.1.sql seg--unpackaged--1.0.sql
seg--1.0--1.1.sql
PGFILEDESC = "seg - line segment data type"
HEADERS = segdata.h

54
contrib/seg/seg--unpackaged--1.0.sql
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@ -1,54 +0,0 @@
/* contrib/seg/seg--unpackaged--1.0.sql */
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION seg FROM unpackaged" to load this file. \quit
ALTER EXTENSION seg ADD type seg;
ALTER EXTENSION seg ADD function seg_in(cstring);
ALTER EXTENSION seg ADD function seg_out(seg);
ALTER EXTENSION seg ADD function seg_over_left(seg,seg);
ALTER EXTENSION seg ADD function seg_over_right(seg,seg);
ALTER EXTENSION seg ADD function seg_left(seg,seg);
ALTER EXTENSION seg ADD function seg_right(seg,seg);
ALTER EXTENSION seg ADD function seg_lt(seg,seg);
ALTER EXTENSION seg ADD function seg_le(seg,seg);
ALTER EXTENSION seg ADD function seg_gt(seg,seg);
ALTER EXTENSION seg ADD function seg_ge(seg,seg);
ALTER EXTENSION seg ADD function seg_contains(seg,seg);
ALTER EXTENSION seg ADD function seg_contained(seg,seg);
ALTER EXTENSION seg ADD function seg_overlap(seg,seg);
ALTER EXTENSION seg ADD function seg_same(seg,seg);
ALTER EXTENSION seg ADD function seg_different(seg,seg);
ALTER EXTENSION seg ADD function seg_cmp(seg,seg);
ALTER EXTENSION seg ADD function seg_union(seg,seg);
ALTER EXTENSION seg ADD function seg_inter(seg,seg);
ALTER EXTENSION seg ADD function seg_size(seg);
ALTER EXTENSION seg ADD function seg_center(seg);
ALTER EXTENSION seg ADD function seg_upper(seg);
ALTER EXTENSION seg ADD function seg_lower(seg);
ALTER EXTENSION seg ADD operator >(seg,seg);
ALTER EXTENSION seg ADD operator >=(seg,seg);
ALTER EXTENSION seg ADD operator <(seg,seg);
ALTER EXTENSION seg ADD operator <=(seg,seg);
ALTER EXTENSION seg ADD operator >>(seg,seg);
ALTER EXTENSION seg ADD operator <<(seg,seg);
ALTER EXTENSION seg ADD operator &<(seg,seg);
ALTER EXTENSION seg ADD operator &&(seg,seg);
ALTER EXTENSION seg ADD operator &>(seg,seg);
ALTER EXTENSION seg ADD operator <>(seg,seg);
ALTER EXTENSION seg ADD operator =(seg,seg);
ALTER EXTENSION seg ADD operator <@(seg,seg);
ALTER EXTENSION seg ADD operator @>(seg,seg);
ALTER EXTENSION seg ADD operator ~(seg,seg);
ALTER EXTENSION seg ADD operator @(seg,seg);
ALTER EXTENSION seg ADD function gseg_consistent(internal,seg,integer,oid,internal);
ALTER EXTENSION seg ADD function gseg_compress(internal);
ALTER EXTENSION seg ADD function gseg_decompress(internal);
ALTER EXTENSION seg ADD function gseg_penalty(internal,internal,internal);
ALTER EXTENSION seg ADD function gseg_picksplit(internal,internal);
ALTER EXTENSION seg ADD function gseg_union(internal,internal);
ALTER EXTENSION seg ADD function gseg_same(seg,seg,internal);
ALTER EXTENSION seg ADD operator family seg_ops using btree;
ALTER EXTENSION seg ADD operator class seg_ops using btree;
ALTER EXTENSION seg ADD operator family gist_seg_ops using gist;
ALTER EXTENSION seg ADD operator class gist_seg_ops using gist;