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Tom Lane 2d00190495 Rationalize common/relpath.[hc]. 
Commit a730183926 created rather a mess by
putting dependencies on backend-only include files into include/common.
We really shouldn't do that.  To clean it up:

* Move TABLESPACE_VERSION_DIRECTORY back to its longtime home in
catalog/catalog.h.  We won't consider this symbol part of the FE/BE API.

* Push enum ForkNumber from relfilenode.h into relpath.h.  We'll consider
relpath.h as the source of truth for fork numbers, since relpath.c was
already partially serving that function, and anyway relfilenode.h was
kind of a random place for that enum.

* So, relfilenode.h now includes relpath.h rather than vice-versa.  This
direction of dependency is fine.  (That allows most, but not quite all,
of the existing explicit #includes of relpath.h to go away again.)

* Push forkname_to_number from catalog.c to relpath.c, just to centralize
fork number stuff a bit better.

* Push GetDatabasePath from catalog.c to relpath.c; it was rather odd
that the previous commit didn't keep this together with relpath().

* To avoid needing relfilenode.h in common/, redefine the underlying
function (now called GetRelationPath) as taking separate OID arguments,
and make the APIs using RelFileNode or RelFileNodeBackend into macro
wrappers.  (The macros have a potential multiple-eval risk, but none of
the existing call sites have an issue with that; one of them had such a
risk already anyway.)

* Fix failure to follow the directions when "init" fork type was added;
specifically, the errhint in forkname_to_number wasn't updated, and neither
was the SGML documentation for pg_relation_size().

* Fix tablespace-path-too-long check in CreateTableSpace() to account for
fork-name component of maximum-length pathnames.  This requires putting
FORKNAMECHARS into a header file, but it was rather useless (and
actually unreferenced) where it was.

The last couple of items are potentially back-patchable bug fixes,
if anyone is sufficiently excited about them; but personally I'm not.

Per a gripe from Christoph Berg about how include/common wasn't
self-contained.
 		2014-04-30 17:30:50 -04:00
..
adminpack Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
auth_delay Limit values of archive_timeout, post_auth_delay, auth_delay.milliseconds. 2012-11-18 17:15:06 -05:00
auto_explain auto_explain: Add logging of trigger execution 2014-03-04 15:31:18 -03:00
btree_gin Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
btree_gist Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
chkpass Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
citext Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
cube Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
dblink Update copyright for 2014 2014-01-07 16:05:30 -05:00
dict_int Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
dict_xsyn Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
dummy_seclabel Update copyright for 2014 2014-01-07 16:05:30 -05:00
earthdistance Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
file_fdw copy: update docs for FORCE_NULL and FORCE_NOT_NULL combination 2014-04-22 16:06:37 -04:00
fuzzystrmatch Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
hstore Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
intagg Throw a useful error message if an extension script file is fed to psql. 2011-10-12 15:45:03 -04:00
intarray Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
isn Fix calculation of ISMN check digit. 2014-01-13 15:43:29 +02:00
lo Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
ltree Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
oid2name Centralize getopt-related declarations in a new header file pg_getopt.h. 2014-02-15 14:31:30 -05:00
pageinspect Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
passwordcheck Update copyright for 2014 2014-01-07 16:05:30 -05:00
pg_archivecleanup Remove MinGW readdir/errno bug workaround fixed on 2003-10-10 2014-03-21 13:47:37 -04:00
pg_buffercache Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pg_freespacemap Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pg_prewarm Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pg_standby Remove MinGW readdir/errno bug workaround fixed on 2003-10-10 2014-03-21 13:47:37 -04:00
pg_stat_statements pg_stat_statements forgot to let previous occupant of hook get control too. 2014-04-21 13:28:07 -04:00
pg_test_fsync pg_test_fsync: add C comment about direct I/O and write size failure 2014-02-12 15:38:29 -05:00
pg_test_timing Remove undocumented -h (help) option 2013-07-01 12:40:33 -04:00
pg_trgm Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pg_upgrade Add missing SYSTEMQUOTEs 2014-04-30 10:35:52 +03:00
pg_upgrade_support Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pg_xlogdump Rationalize common/relpath.[hc]. 2014-04-30 17:30:50 -04:00
pgbench pgbench: Fix help message 2014-02-27 21:52:21 -05:00
pgcrypto Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pgrowlocks Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
pgstattuple Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
postgres_fdw Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
seg Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
sepgsql Fix typo in comment. 2014-04-01 09:27:37 +03:00
spi Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
sslinfo Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
start-scripts Remove dead URL mention in OSX startup script 2013-09-04 17:04:33 -04:00
tablefunc Update copyright for 2014 2014-01-07 16:05:30 -05:00
tcn Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
test_decoding contrib/test_decoding: fix regression test for psql oid display changes 2014-04-15 14:45:10 -04:00
test_parser Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
test_shm_mq Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
tsearch2 Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
unaccent Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
uuid-ossp Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
vacuumlo Centralize getopt-related declarations in a new header file pg_getopt.h. 2014-02-15 14:31:30 -05:00
worker_spi Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
xml2 Create function prototype as part of PG_FUNCTION_INFO_V1 macro 2014-04-18 00:03:19 -04:00
Makefile Introduce logical decoding. 2014-03-03 16:32:18 -05:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00
contrib-global.mk Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00

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.