postgres/contrib
Alvaro Herrera f5f9a760a3 Relax overly strict assertion
Ever since its birth, ReorderBufferBuildTupleCidHash() has contained an
assertion that a catalog tuple cannot change Cmax after acquiring one.  But
that's wrong: if a subtransaction executes DDL that affects that catalog
tuple, and later aborts and another DDL affects the same tuple, it will
change Cmax.  Relax the assertion to merely verify that the Cmax remains
valid and monotonically increasing, instead.

Add a test that tickles the relevant code.

Diagnosed by, and initial patch submitted by: Arseny Sher
Co-authored-by: Arseny Sher
Discussion: https://postgr.es/m/874l9p8hyw.fsf@ars-thinkpad
2019-02-12 18:42:37 -03:00
..
adminpack adminpack: Revoke EXECUTE on pg_logfile_rotate() 2018-05-07 10:10:41 -04:00
amcheck Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
auth_delay Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
auto_explain Allow auto_explain.log_min_duration to go up to INT_MAX. 2018-02-23 14:39:18 -05:00
bloom Avoid using potentially-under-aligned page buffers. 2018-09-01 15:27:13 -04:00
btree_gin Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
btree_gist Improve stability of recently-added regression test case. 2018-10-16 12:01:19 -04:00
chkpass Further cleanup from the strong-random patch. 2016-12-12 11:55:32 +02:00
citext Fix hashjoin costing mistake introduced with inner_unique optimization. 2018-07-14 11:59:12 -04:00
cube Enforce cube dimension limit in all cube construction functions 2018-08-31 20:23:32 +03:00
dblink Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
dict_int Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
dict_xsyn Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
earthdistance Fix earthdistance test suite function name typo. 2018-07-29 12:02:10 -07:00
file_fdw Ensure that foreign scans with lateral refs are planned correctly. 2019-02-07 13:11:14 -05:00
fuzzystrmatch Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
hstore Fix hstore hash function for empty hstores upgraded from 8.4. 2018-11-24 21:17:09 +00:00
hstore_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
hstore_plpython Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
intagg Schema-qualify some references to regprocedure. 2016-06-10 10:41:58 -04:00
intarray Avoid crashes in contrib/intarray gist__int_ops (bug #15518) 2018-11-24 08:39:42 +00:00
isn Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
lo Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
ltree Allow btree comparison functions to return INT_MIN. 2018-10-05 16:01:29 -04:00
ltree_plpython Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
oid2name Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
pageinspect Fix tuple_data_split() to not open a relation without any lock. 2018-10-01 11:51:07 -04:00
passwordcheck Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
pg_buffercache Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
pg_freespacemap Default monitoring roles 2017-03-30 14:18:53 -04:00
pg_prewarm Avoid using potentially-under-aligned page buffers. 2018-09-01 15:27:13 -04:00
pg_standby Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
pg_stat_statements Revoke pg_stat_statements_reset() permissions 2018-09-25 09:56:57 +09:00
pg_trgm Rework word_similarity documentation, make it close to actual algorithm. 2018-03-21 14:37:18 +03:00
pg_visibility Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
pgcrypto Fix misc typos in comments. 2019-01-23 13:50:50 +02:00
pgrowlocks Teach pgrowlocks to check relkind before scanning 2017-06-21 23:19:13 -04:00
pgstattuple pgstatindex: Insert some casts to prevent overflow. 2017-08-10 11:48:42 -04:00
postgres_fdw Ensure that foreign scans with lateral refs are planned correctly. 2019-02-07 13:11:14 -05:00
seg Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
sepgsql Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
spi Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
sslinfo Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
start-scripts Provide modern examples of how to auto-start Postgres on macOS. 2017-11-17 12:47:11 -05:00
tablefunc Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
tcn Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
test_decoding Relax overly strict assertion 2019-02-12 18:42:37 -03:00
tsm_system_rows Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
tsm_system_time Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
unaccent Make contrib/unaccent's unaccent() function work when not in search path. 2018-09-06 10:49:45 -04:00
uuid-ossp Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
vacuumlo Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
xml2 Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00
Makefile Add amcheck extension to contrib. 2017-03-09 16:33:02 -08:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00

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.