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Tom Lane 845cfe012f Mark factorial operator, and postfix operators in general, as deprecated. 
Per discussion, we're planning to remove parser support for postfix
operators in order to simplify the grammar.  So it behooves us to
put out a deprecation notice at least one release before that.

There is only one built-in postfix operator, ! for factorial.
Label it deprecated in the docs and in pg_description, and adjust
some examples that formerly relied on it.  (The sister prefix
operator !! is also deprecated.  We don't really have to remove
that one, but since we're suggesting that people use factorial()
instead, it seems better to remove both operators.)

Also state in the CREATE OPERATOR ref page that postfix operators
in general are going away.

Although this changes the initial contents of pg_description,
I did not force a catversion bump; it doesn't seem essential.

In v13, also back-patch 4c5cf5431, so that there's someplace for
the <link>s to point to.

Mark Dilger and John Naylor, with some adjustments by me

Discussion: https://postgr.es/m/BE2DF53D-251A-4E26-972F-930E523580E9@enterprisedb.com
2020-08-30 14:37:24 -04:00
..
access Rename wal_keep_segments to wal_keep_size. 2020-07-20 13:33:45 +09:00
bootstrap Update copyrights for 2020 2020-01-01 12:21:45 -05:00
catalog Mark factorial operator, and postfix operators in general, as deprecated. 2020-08-30 14:37:24 -04:00
commands Rename SLRU structures and associated LWLocks. 2020-05-15 14:28:25 -04:00
common Move connect.h from fe_utils to src/include/common. 2020-08-10 09:22:58 -07:00
datatype Update copyrights for 2020 2020-01-01 12:21:45 -05:00
executor Add hash_mem_multiplier GUC. 2020-07-29 14:14:57 -07:00
fe_utils Move connect.h from fe_utils to src/include/common. 2020-08-10 09:22:58 -07:00
foreign Update copyrights for 2020 2020-01-01 12:21:45 -05:00
jit Fix a few typos in JIT comments and README 2020-08-21 09:34:47 +12:00
lib Initial pgindent and pgperltidy run for v13. 2020-05-14 13:06:50 -04:00
libpq Fix postmaster's behavior during smart shutdown. 2020-08-14 13:26:57 -04:00
mb Allow Unicode escapes in any server encoding, not only UTF-8. 2020-03-06 14:17:43 -05:00
nodes Fix handling of CREATE TABLE LIKE with inheritance. 2020-08-21 15:00:48 -04:00
optimizer Be more careful about the shape of hashable subplan clauses. 2020-08-14 22:14:03 -04:00
parser Fix handling of CREATE TABLE LIKE with inheritance. 2020-08-21 15:00:48 -04:00
partitioning Allow partitionwise joins in more cases. 2020-04-08 10:25:00 +09:00
port Avoid need for valgrind suppressions for pg_atomic_init_u64 on some platforms. 2020-06-08 20:02:49 -07:00
portability Update copyrights for 2020 2020-01-01 12:21:45 -05:00
postmaster Trigger autovacuum based on number of INSERTs 2020-03-28 19:20:12 +13:00
regex Assume that we have <wchar.h>. 2020-02-21 14:30:47 -05:00
replication Revert "Track statistics for spilling of changes from ReorderBuffer". 2020-07-13 08:46:56 +05:30
rewrite Update copyrights for 2020 2020-01-01 12:21:45 -05:00
snowball Update copyrights for 2020 2020-01-01 12:21:45 -05:00
statistics Initial pgindent and pgperltidy run for v13. 2020-05-14 13:06:50 -04:00
storage Prevent concurrent SimpleLruTruncate() for any given SLRU. 2020-08-15 10:15:56 -07:00
tcop Allow the planner-related functions and hook to accept the query string. 2020-03-30 13:51:05 +09:00
tsearch Replace TS_execute's TS_EXEC_CALC_NOT flag with TS_EXEC_SKIP_NOT. 2020-07-24 15:43:56 -04:00
utils Use int64 instead of long in incremental sort code 2020-08-02 14:23:57 +12:00
.gitignore Refactor dlopen() support 2018-09-06 11:33:04 +02:00
c.h Enable Unix-domain sockets support on Windows 2020-03-28 15:01:01 +01:00
fmgr.h Fix minor violations of FunctionCallInvoke usage protocol. 2020-04-21 14:23:53 -04:00
funcapi.h Avoid holding a directory FD open across assorted SRF calls. 2020-03-16 21:05:52 -04:00
getaddrinfo.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
getopt_long.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
Makefile Get rid of jsonpath_gram.h and jsonpath_scanner.h 2019-03-20 11:13:34 +03:00
miscadmin.h Add hash_mem_multiplier GUC. 2020-07-29 14:14:57 -07:00
pg_config.h.in Enable Unix-domain sockets support on Windows 2020-03-28 15:01:01 +01:00
pg_config_ext.h.in Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
pg_config_manual.h Remove ACLDEBUG #define and associated code. 2020-04-23 15:38:04 -04:00
pg_getopt.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_trace.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pgstat.h Mop-up for wait event naming issues. 2020-05-16 21:00:11 -04:00
pgtar.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pgtime.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
port.h Initial pgindent and pgperltidy run for v13. 2020-05-14 13:06:50 -04:00
postgres.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
postgres_ext.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
postgres_fe.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
rusagestub.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
windowapi.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00