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Michael Paquier f02259fe93 Allow concurrent-safe open() and fopen() in frontend code for Windows 
PostgreSQL uses a custom wrapper for open() and fopen() which is
concurrent-safe, allowing multiple processes to open and work on the
same file.  This has a couple of advantages:
- pg_test_fsync does not handle O_DSYNC correctly otherwise, leading to
false claims that disks are unsafe.
- TAP tests can run into race conditions when a postmaster and pg_ctl
open postmaster.pid, fixing some random failures in the buildfam.

pg_upgrade is one frontend tool using workarounds to bypass file locking
issues with the log files it generates, however the interactions with
pg_ctl are proving to be tedious to get rid of, so this is left for
later.

Author: Laurenz Albe
Reviewed-by: Michael Paquier, Kuntal Ghosh
Discussion: https://postgr.es/m/1527846213.2475.31.camel@cybertec.at
Discussion: https://postgr.es/m/16922.1520722108@sss.pgh.pa.us
2018-09-17 20:38:42 +09:00
..
access Fix the overrun in hash index metapage for smaller block sizes. 2018-09-06 10:07:18 +05:30
bootstrap Rationalize handling of array type names in bootstrap data. 2018-04-17 18:29:11 -04:00
catalog Make argument names of pg_get_object_address consistent, and fix docs. 2018-09-05 13:47:29 -04:00
commands Fully enforce uniqueness of constraint names. 2018-09-04 13:45:35 -04:00
common Remove support for tls-unique channel binding. 2018-08-05 13:44:26 +03:00
datatype Update copyright for 2018 2018-01-02 23:30:12 -05:00
executor Fix failure with initplans used conditionally during EvalPlanQual rechecks. 2018-09-15 13:42:34 -04:00
fe_utils Ensure schema qualification in pg_restore DISABLE/ENABLE TRIGGER commands. 2018-08-17 17:12:21 -04:00
foreign Allow insert and update tuple routing and COPY for foreign tables. 2018-04-06 19:22:03 -04:00
jit LLVMJIT: LLVMGetHostCPUFeatures now is upstream, use LLMV version if available. 2018-08-24 10:21:48 -07:00
lib Fix a boatload of typos in C comments. 2018-04-01 15:01:28 -04:00
libpq Remove duplicate function declarations. 2018-08-14 14:25:14 -04:00
mb Fix a boatload of typos in C comments. 2018-04-01 15:01:28 -04:00
nodes Disable support for partitionwise joins in problematic cases. 2018-08-31 20:47:17 +09:00
optimizer Don't allow LIMIT/OFFSET clause within sub-selects to be pushed to workers. 2018-09-14 09:51:47 +05:30
parser Fix INSERT ON CONFLICT UPDATE through a view that isn't just SELECT *. 2018-08-04 19:38:58 -04:00
partitioning Fix run-time partition pruning for appends with multiple source rels. 2018-08-01 19:42:53 -04:00
port Fix misc typos, mostly in comments. 2018-07-18 16:17:42 +03:00
portability Update copyright for 2018 2018-01-02 23:30:12 -05:00
postmaster Add comment explaining BGWORKER_BYPASS_ALLOWCONN 2018-04-23 10:31:22 +02:00
regex Update copyright for 2018 2018-01-02 23:30:12 -05:00
replication Fix memory leak in TRUNCATE decoding 2018-09-03 02:29:51 +02:00
rewrite Revert MERGE patch 2018-04-12 11:22:56 +01:00
snowball Update copyright for 2018 2018-01-02 23:30:12 -05:00
statistics Update copyright for 2018 2018-01-02 23:30:12 -05:00
storage Fix longstanding recursion hazard in sinval message processing. 2018-09-07 18:04:55 -04:00
tcop Post-feature-freeze pgindent run. 2018-04-26 14:47:16 -04:00
tsearch Post-feature-freeze pgindent run. 2018-04-26 14:47:16 -04:00
utils Further fixes for quoted-list GUC values in pg_dump and ruleutils.c. 2018-07-31 13:00:08 -04:00
.gitignore Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
c.h Avoid using potentially-under-aligned page buffers. 2018-09-01 15:27:13 -04:00
fmgr.h Add expression compilation support to LLVM JIT provider. 2018-03-22 14:45:59 -07:00
funcapi.h Support INOUT arguments in procedures 2018-03-14 12:07:28 -04:00
getaddrinfo.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
getopt_long.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
Makefile Rearrange makefile rules for running Gen_fmgrtab.pl. 2018-05-03 17:54:18 -04:00
miscadmin.h Allow group access on PGDATA 2018-04-07 17:45:39 -04:00
pg_config.h.in LLVMJIT: LLVMGetHostCPUFeatures now is upstream, use LLMV version if available. 2018-08-24 10:21:48 -07:00
pg_config.h.win32 LLVMJIT: LLVMGetHostCPUFeatures now is upstream, use LLMV version if available. 2018-08-24 10:21:48 -07:00
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_ext.h.win32 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 Update copyright for 2018 2018-01-02 23:30:12 -05:00
pg_getopt.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
pg_trace.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
pgstat.h Revert "Allow on-line enabling and disabling of data checksums" 2018-04-09 19:03:42 +02:00
pgtar.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
pgtime.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
port.h Allow concurrent-safe open() and fopen() in frontend code for Windows 2018-09-17 20:38:42 +09:00
postgres.h Detoast plpgsql variables if they might live across a transaction boundary. 2018-05-16 14:56:52 -04:00
postgres_ext.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
postgres_fe.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
rusagestub.h Update copyright for 2018 2018-01-02 23:30:12 -05:00
windowapi.h Update copyright for 2018 2018-01-02 23:30:12 -05:00