postgresql/contrib
Michael Paquier a3ab7a707d Fix corner case with 16kB-long decompression in pgcrypto, take 2
A compressed stream may end with an empty packet.  In this case
decompression finishes before reading the empty packet and the
remaining stream packet causes a failure in reading the following
data.  This commit makes sure to consume such extra data, avoiding a
failure when decompression the data.  This corner case was reproducible
easily with a data length of 16kB, and existed since e94dd6a.  A cheap
regression test is added to cover this case based on a random,
incompressible string.

The first attempt of this patch has allowed to find an older failure
within the compression logic of pgcrypto, fixed by b9b6105.  This
involved SLES 15 with z390 where a custom flavor of libz gets used.
Bonus thanks to Mark Wong for providing access to the specific
environment.

Reported-by: Frank Gagnepain
Author: Kyotaro Horiguchi, Michael Paquier
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/16476-692ef7b84e5fb893@postgresql.org
Backpatch-through: 9.5
2020-07-27 15:58:32 +09:00
..
adminpack Read until EOF vice stat-reported size in read_binary_file 2020-07-04 06:26:53 -04:00
amcheck Fix amcheck for page checks concurrent to replay of btree page deletion 2020-05-14 12:44:44 +03:00
auth_delay Update copyrights for 2020 2020-01-01 12:21:45 -05:00
auto_explain Add the option to report WAL usage in EXPLAIN and auto_explain. 2020-04-06 08:02:15 +05:30
bloom tap tests: replace 'master' with 'primary'. 2020-07-08 12:39:56 -07:00
bool_plperl Create contrib/bool_plperl to provide a bool transform for PL/Perl[U]. 2020-03-06 17:11:23 -05:00
btree_gin Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
btree_gist Update btree_gist extension for parallel query 2020-07-20 13:59:50 +03:00
citext Add current substring regular expression syntax 2020-06-29 11:05:00 +02:00
cube Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
dblink Initialize dblink remoteConn struct in all cases 2020-05-28 13:44:54 -04:00
dict_int Preserve integer and float values accurately in (de)serialize_deflist. 2020-03-10 12:30:02 -04:00
dict_xsyn Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
earthdistance Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
file_fdw Remove utils/acl.h from catalog/objectaddress.h 2020-03-10 10:27:00 +01:00
fuzzystrmatch Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
hstore Avoid using %c printf format for potentially non-ASCII characters. 2020-06-29 11:41:19 -04:00
hstore_plperl Mark some contrib modules as "trusted". 2020-02-13 15:02:35 -05:00
hstore_plpython Split all OBJS style lines in makefiles into one-line-per-entry style. 2019-11-05 14:41:07 -08:00
intagg Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
intarray Initial pgindent and pgperltidy run for v13. 2020-05-14 13:06:50 -04:00
isn Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
jsonb_plperl Support infinity and -infinity in the numeric data type. 2020-07-22 19:19:44 -04:00
jsonb_plpython Support infinity and -infinity in the numeric data type. 2020-07-22 19:19:44 -04:00
lo Fix bogus CALLED_AS_TRIGGER() defenses. 2020-04-03 11:24:56 -04:00
ltree Use query collation, not column's collation, while examining statistics. 2020-06-05 16:18:50 -04:00
ltree_plpython Improve error messages in ltree_in and lquery_in. 2020-03-31 11:14:42 -04:00
oid2name Add PostgreSQL home page to --help output 2020-02-28 13:12:21 +01:00
pageinspect Avoid using %c printf format for potentially non-ASCII characters. 2020-06-29 11:41:19 -04:00
passwordcheck Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_buffercache Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
pg_freespacemap Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
pg_prewarm code: replace 'master' with 'leader' where appropriate. 2020-07-08 12:58:32 -07:00
pg_standby pg_standby: Don't use HAVE_WORKING_LINK 2020-03-03 08:54:44 +01:00
pg_stat_statements doc: Spell checking 2020-07-05 15:37:57 +02:00
pg_trgm Spelling adjustments 2020-06-09 10:41:41 +02:00
pg_visibility pgstattuple: Have pgstattuple_approx accept TOAST tables 2020-06-30 00:56:43 +02:00
pgcrypto Fix corner case with 16kB-long decompression in pgcrypto, take 2 2020-07-27 15:58:32 +09:00
pgrowlocks Avoid holding a directory FD open across assorted SRF calls. 2020-03-16 21:05:52 -04:00
pgstattuple pgstattuple: Have pgstattuple_approx accept TOAST tables 2020-06-30 00:56:43 +02:00
postgres_fdw Revert "Use CP_SMALL_TLIST for hash aggregate" 2020-07-12 22:59:32 -07:00
seg Use perl warnings pragma consistently 2020-04-13 11:55:45 -04:00
sepgsql Fix compilation failure with sepgsql 2020-07-15 09:42:21 +09:00
spi Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
sslinfo Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
start-scripts Remove contrib/start-scripts/osx/. 2017-11-17 12:53:20 -05:00
tablefunc Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
tcn Mark some contrib modules as "trusted". 2020-02-13 15:02:35 -05:00
test_decoding Replace superuser check by ACLs for replication origin functions 2020-06-14 12:40:37 +09:00
tsm_system_rows Mark some contrib modules as "trusted". 2020-02-13 15:02:35 -05:00
tsm_system_time Mark some contrib modules as "trusted". 2020-02-13 15:02:35 -05:00
unaccent Update Unicode data to Unicode 13.0.0 and CLDR 37 2020-04-24 09:52:59 +02:00
uuid-ossp Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
vacuumlo Add PostgreSQL home page to --help output 2020-02-28 13:12:21 +01:00
xml2 Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
Makefile Create contrib/bool_plperl to provide a bool transform for PL/Perl[U]. 2020-03-06 17:11:23 -05:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00

README

The PostgreSQL contrib tree
---------------------------

This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree.  This does not preclude their
usefulness.

User documentation for each module appears in the main SGML
documentation.

When building from the source distribution, these modules are not
built automatically, unless you build the "world" target.  You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.

Some directories supply new user-defined functions, operators, or
types.  To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command.  In a fresh database,
you can simply do

    CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this
procedure.