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Etsuro Fujita 5c47049180 postgres_fdw: Fix incorrect handling of row movement for remote partitions. 
Commit 3d956d9562 added support for update row movement in postgres_fdw.
This patch fixes the following issues introduced by that commit:

* When a remote partition chosen to insert routed rows into was also an
  UPDATE subplan target rel that would be updated later, the UPDATE that
  used a direct modification plan modified those routed rows incorrectly
  because those routed rows were visible to the later UPDATE command.
  The right fix for this would be to have some way in postgres_fdw in
  which the later UPDATE command ignores those routed rows, but it seems
  hard to do so with the current infrastructure.  For now throw an error
  in that case.

* When a remote partition chosen to insert routed rows into was also an
  UPDATE subplan target rel, fmstate created for the UPDATE that used a
  non-direct modification plan was mistakenly overridden by another
  fmstate created for inserting those routed rows into the partition.
  This caused 1) server crash when the partition would be updated later,
  and 2) resource leak when the partition had been already updated.  To
  avoid that, adjust the treatment of the fmstate for the inserting.  As
  for #1, since we would also have the incorrectness issue as mentioned
  above, error out in that case as well.

Update the docs to mention that postgres_fdw currently does not handle
the case where a remote partition chosen to insert a routed row into is
also an UPDATE subplan target rel that will be updated later.

Author: Amit Langote and Etsuro Fujita
Reviewed-by: Amit Langote
Backpatch-through: 11 where row movement in postgres_fdw was added
Discussion: https://postgr.es/m/21e7eaa4-0d4d-20c2-a1f7-c7e96f4ce440@lab.ntt.co.jp
2019-04-24 18:31:50 +09:00
..
adminpack Update copyright for 2019 2019-01-02 12:44:25 -05:00
amcheck Add test coverage for rootdescend verification. 2019-04-04 17:25:35 -07:00
auth_delay Update copyright for 2019 2019-01-02 12:44:25 -05:00
auto_explain Add SETTINGS option to EXPLAIN, to print modified settings. 2019-04-04 00:04:31 +02:00
bloom Report progress of CREATE INDEX operations 2019-04-02 15:18:08 -03:00
btree_gin Provide separate header file for built-in float types 2018-07-29 03:30:48 +02:00
btree_gist Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
citext Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
cube Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
dblink Initialize structure at declaration 2019-03-25 09:36:58 +01:00
dict_int Update copyright for 2019 2019-01-02 12:44:25 -05:00
dict_xsyn Update copyright for 2019 2019-01-02 12:44:25 -05:00
earthdistance Fix earthdistance test suite function name typo. 2018-07-29 12:02:07 -07:00
file_fdw file_fdw: Fix for generated columns 2019-04-04 09:24:48 +02:00
fuzzystrmatch Update copyright for 2019 2019-01-02 12:44:25 -05:00
hstore Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
hstore_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
hstore_plpython Avoid Python memory leaks in hstore_plpython and jsonb_plpython. 2019-04-06 17:54:29 -04:00
intagg
intarray Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
isn Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
jsonb_plpython Avoid Python memory leaks in hstore_plpython and jsonb_plpython. 2019-04-06 17:54:29 -04:00
lo lo: Add test suite 2017-09-14 22:22:59 -04:00
ltree Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
ltree_plpython Fix out-of-tree build for transform modules. 2018-09-16 18:46:45 +01:00
oid2name Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00
pageinspect Only allow heap in a number of contrib modules. 2019-04-01 14:57:21 -07:00
passwordcheck Update copyright for 2019 2019-01-02 12:44:25 -05:00
pg_buffercache Remove WITH OIDS support, change oid catalog column visibility. 2018-11-20 16:00:17 -08:00
pg_freespacemap Replace heapam.h includes with {table, relation}.h where applicable. 2019-01-21 10:51:37 -08:00
pg_prewarm Don't auto-restart per-database autoprewarm workers. 2019-03-18 15:22:42 -04:00
pg_standby Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00
pg_stat_statements Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
pg_trgm Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
pg_visibility Move remaining code from tqual.[ch] to heapam.h / heapam_visibility.c. 2019-01-21 17:07:10 -08:00
pgcrypto Suppress another case of MSVC warning 4146. 2019-02-16 15:28:27 -08:00
pgrowlocks Only allow heap in a number of contrib modules. 2019-04-01 14:57:21 -07:00
pgstattuple Only allow heap in a number of contrib modules. 2019-04-01 14:57:21 -07:00
postgres_fdw postgres_fdw: Fix incorrect handling of row movement for remote partitions. 2019-04-24 18:31:50 +09:00
seg Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
sepgsql Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
spi Fix more strcmp() calls using boolean-like comparisons for result checks 2019-04-12 10:16:49 +09:00
sslinfo Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
start-scripts Remove contrib/start-scripts/osx/. 2017-11-17 12:53:20 -05:00
tablefunc Switch some palloc/memset calls to palloc0 2019-03-27 12:02:50 +09:00
tcn Update copyright for 2019 2019-01-02 12:44:25 -05:00
test_decoding Add facility to copy replication slots 2019-04-05 18:05:18 -03:00
tsm_system_rows tableam: sample scan. 2019-03-31 18:37:57 -07:00
tsm_system_time tableam: sample scan. 2019-03-31 18:37:57 -07:00
unaccent Add combining characters to unaccent.rules. 2019-02-01 15:23:01 +01:00
uuid-ossp Update copyright for 2019 2019-01-02 12:44:25 -05:00
vacuumlo Avoid double-free in vacuumlo error path. 2019-03-24 15:13:20 -04:00
xml2 Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
contrib-global.mk
Makefile Transforms for jsonb to PL/Perl 2018-04-03 09:47:18 -04:00
README

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.