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Amit Kapila ead49ebc07 Fix parallel operations that prevent oldest xmin from advancing. 
While determining xid horizons, we skip over backends that are running
Vacuum. We also ignore Create Index Concurrently, or Reindex Concurrently
for the purposes of computing Xmin for Vacuum. But we were not setting the
flags corresponding to these operations when they are performed in
parallel which was preventing Xid horizon from advancing.

The optimization related to skipping Create Index Concurrently, or Reindex
Concurrently operations was implemented in PG-14 but the fix is the same
for the Parallel Vacuum as well so back-patched till PG-13.

Author: Masahiko Sawada
Reviewed-by: Amit Kapila
Backpatch-through: 13
Discussion: https://postgr.es/m/CAD21AoCLQqgM1sXh9BrDFq0uzd3RBFKi=Vfo6cjjKODm0Onr5w@mail.gmail.com
2021-11-19 09:14:09 +05:30
..
access Fix CREATE INDEX CONCURRENTLY for the newest prepared transactions. 2021-10-23 18:36:42 -07:00
bootstrap Update copyright for 2021 2021-01-02 13:06:25 -05:00
catalog Fix WAL replay in presence of an incomplete record 2021-09-29 11:41:01 -03:00
commands Don't overlook indexes during parallel VACUUM. 2021-11-02 12:06:16 -07:00
common Revert refactoring of hex code to src/common/ 2021-08-19 09:20:19 +09:00
datatype Update copyright for 2021 2021-01-02 13:06:25 -05:00
executor Fix checking of query type in plpgsql's RETURN QUERY command. 2021-10-03 13:21:20 -04:00
fe_utils psql: Refine lexing of BEGIN...END blocks in CREATE FUNCTION statements 2021-04-16 12:20:23 +02:00
foreign Initial pgindent and pgperltidy run for v14. 2021-05-12 13:14:10 -04:00
jit jit: Do not try to shut down LLVM state in case of LLVM triggered errors. 2021-09-13 18:15:28 -07:00
lib Fix frontend version of sh_error() in simplehash.h. 2021-10-22 16:43:38 -04:00
libpq Reject extraneous data after SSL or GSS encryption handshake. 2021-11-08 11:01:43 -05:00
mb Fix incautious handling of possibly-miscoded strings in client code. 2021-06-07 14:15:25 -04:00
nodes Avoid O(N^2) behavior in SyncPostCheckpoint(). 2021-11-02 11:31:54 -04:00
optimizer Change the name of the Result Cache node to Memoize 2021-07-14 12:45:00 +12:00
parser Disable anonymous record hash support except in special cases 2021-09-08 09:55:18 +02:00
partitioning Fix relcache inconsistency hazard in partition detach 2021-04-22 15:13:25 -04:00
port Get rid of artificial restriction on hash table sizes on Windows. 2021-07-25 14:02:27 -04:00
portability Fix another portability bug in recent pgbench commit. 2021-03-10 23:20:41 +13:00
postmaster Remove temporary files after backend crash 2021-03-18 17:38:28 +01:00
regex Improve memory management in regex compiler. 2021-02-26 13:52:10 -05:00
replication Reset properly snapshot export state during transaction abort 2021-10-18 11:56:48 +09:00
rewrite Adjust locations which have an incorrect copyright year 2021-06-04 12:19:50 +12:00
snowball Update snowball 2021-02-19 08:10:15 +01:00
statistics Extended statistics on expressions 2021-03-27 00:01:11 +01:00
storage Fix parallel operations that prevent oldest xmin from advancing. 2021-11-19 09:14:09 +05:30
tcop Centralize the logic for protective copying of utility statements. 2021-06-18 11:22:58 -04:00
tsearch Don't leak compiled regex(es) when an ispell cache entry is dropped. 2021-03-18 22:22:47 -04:00
utils Revert "Remove unused wait events." 2021-10-26 08:19:33 +05:30
.gitignore Refactor dlopen() support 2018-09-06 11:33:04 +02:00
c.h Work around issues in MinGW-64's setjmp/longjmp support. 2021-03-15 12:34:17 -04:00
fmgr.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
funcapi.h Reconsider the handling of procedure OUT parameters. 2021-06-10 17:11:36 -04:00
getaddrinfo.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
getopt_long.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
Makefile Build in some knowledge about foreign-key relationships in the catalogs. 2021-02-02 17:11:55 -05:00
miscadmin.h Get rid of artificial restriction on hash table sizes on Windows. 2021-07-25 14:02:27 -04:00
pg_config.h.in Probe for preadv/pwritev in a more macOS-friendly way. 2021-07-12 19:17:35 -04:00
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 Rename debug_invalidate_system_caches_always to debug_discard_caches. 2021-07-13 15:01:01 -04:00
pg_getopt.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
pg_trace.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
pgstat.h Fix performance regression from session statistics. 2021-09-16 02:10:57 -07:00
pgtar.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
pgtime.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
port.h Move bsearch_arg to src/port 2021-03-23 00:11:22 +01:00
postgres.h Fix misleading comments about TOAST access macros. 2021-09-08 14:11:35 -04:00
postgres_ext.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
postgres_fe.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
rusagestub.h Update copyright for 2021 2021-01-02 13:06:25 -05:00
windowapi.h Update copyright for 2021 2021-01-02 13:06:25 -05:00