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postgresql/src/include/utils
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Jeff Davis 2d819a08a1 Introduce "builtin" collation provider. 
New provider for collations, like "libc" or "icu", but without any
external dependency.

Initially, the only locale supported by the builtin provider is "C",
which is identical to the libc provider's "C" locale. The libc
provider's "C" locale has always been treated as a special case that
uses an internal implementation, without using libc at all -- so the
new builtin provider uses the same implementation.

The builtin provider's locale is independent of the server environment
variables LC_COLLATE and LC_CTYPE. Using the builtin provider, the
database collation locale can be "C" while LC_COLLATE and LC_CTYPE are
set to "en_US", which is impossible with the libc provider.

By offering a new builtin provider, it clarifies that the semantics of
a collation using this provider will never depend on libc, and makes
it easier to document the behavior.

Discussion: https://postgr.es/m/ab925f69-5f9d-f85e-b87c-bd2a44798659@joeconway.com
Discussion: https://postgr.es/m/dd9261f4-7a98-4565-93ec-336c1c110d90@manitou-mail.org
Discussion: https://postgr.es/m/ff4c2f2f9c8fc7ca27c1c24ae37ecaeaeaff6b53.camel%40j-davis.com
Reviewed-by: Daniel Vérité, Peter Eisentraut, Jeremy Schneider
 		2024-03-13 23:33:44 -07:00
..
.gitignore Generate automatically code and documentation related to wait events 2023-07-05 10:53:11 +09:00
acl.h Reintroduce MAINTAIN privilege and pg_maintain predefined role. 2024-03-13 14:49:26 -05:00
aclchk_internal.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
array.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
arrayaccess.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
ascii.h Move is_valid_ascii() to ascii.h. 2024-01-29 12:08:57 -06:00
attoptcache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
backend_progress.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
backend_status.h Replace BackendIds with 0-based ProcNumbers 2024-03-03 19:38:22 +02:00
builtins.h Adjust populate_record_field() to handle errors softly 2024-01-24 15:04:33 +09:00
bytea.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
cash.h Convert *GetDatum() and DatumGet*() macros to inline functions 2022-09-27 20:50:21 +02:00
catcache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
combocid.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
conffiles.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
date.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
datetime.h Support TZ and OF format codes in to_timestamp(). 2024-01-25 17:47:08 -05:00
datum.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
dsa.h Add template for adaptive radix tree 2024-03-07 12:40:11 +07:00
dynahash.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
elog.h Remove obsolete check in SIGTERM handler for the startup process. 2024-02-14 17:09:31 -06:00
evtcache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
expandeddatum.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
expandedrecord.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
float.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
fmgrtab.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
formatting.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
freepage.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
geo_decls.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
guc.h Fix buildfarm failures from 2af07e2f74. 2024-03-04 19:42:16 -08:00
guc_hooks.h Introduce a new GUC 'standby_slot_names'. 2024-03-08 08:10:45 +05:30
guc_tables.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
help_config.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
hsearch.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
index_selfuncs.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
inet.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
injection_point.h Add backend support for injection points 2024-01-22 10:15:50 +09:00
inval.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
json.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
jsonb.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
jsonfuncs.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
jsonpath.h Implement various jsonpath methods 2024-01-25 10:15:43 -05:00
logtape.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
lsyscache.h Revert "Fix parallel-safety check of expressions and predicate for index builds" 2024-03-07 08:30:35 +09:00
memdebug.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
memutils.h Avoid recursion in MemoryContext functions 2024-03-08 13:18:30 +02:00
memutils_internal.h Adjust memory allocation functions to allow sibling calls 2024-02-27 16:39:42 +13:00
memutils_memorychunk.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
meson.build Update copyright for 2024 2024-01-03 20:49:05 -05:00
multirangetypes.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
numeric.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
palloc.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
partcache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
pg_crc.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
pg_locale.h Introduce "builtin" collation provider. 2024-03-13 23:33:44 -07:00
pg_lsn.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
pg_rusage.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
pgstat_internal.h Rename SLRU elements in view pg_stat_slru 2024-02-28 09:39:52 +01:00
pidfile.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
plancache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
portal.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
ps_status.h Speedup and increase usability of set proc title functions 2023-02-20 16:18:27 +13:00
queryenvironment.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
rangetypes.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
regproc.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
rel.h Admit deferrable PKs into rd_pkindex, but flag them as such 2024-03-08 16:32:29 +01:00
relcache.h Give SMgrRelation pointers a well-defined lifetime. 2024-01-31 12:31:02 +02:00
relfilenumbermap.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
relmapper.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
relptr.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
reltrigger.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
resowner.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
resowner_private.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
rls.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
ruleutils.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
sampling.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
selfuncs.h Teach estimate_array_length() to use statistics where available. 2024-01-04 18:36:19 -05:00
sharedtuplestore.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
snapmgr.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
snapshot.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
sortsupport.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
spccache.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
syscache.h Generate syscache info from catalog files 2024-01-23 07:31:06 +01:00
timeout.h Introduce transaction_timeout 2024-02-15 23:56:12 +02:00
timestamp.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
tuplesort.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
tuplestore.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
typcache.h Add planner support functions for range operators <@ and @>. 2024-01-20 13:57:54 -05:00
tzparser.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
usercontext.h Perform logical replication actions as the table owner. 2023-04-04 11:25:23 -04:00
uuid.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
varbit.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
varlena.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
wait_event.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
xid8.h Update copyright for 2024 2024-01-03 20:49:05 -05:00
xml.h Update copyright for 2024 2024-01-03 20:49:05 -05:00