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Alexander Korotkov 0f5ca02f53 Implement waiting for given lsn at transaction start 
This commit adds following optional clause to BEGIN and START TRANSACTION
commands.

  WAIT FOR LSN lsn [ TIMEOUT timeout ]

New clause pospones transaction start till given lsn is applied on standby.
This clause allows user be sure, that changes previously made on primary would
be visible on standby.

New shared memory struct is used to track awaited lsn per backend.  Recovery
process wakes up backend once required lsn is applied.

Author: Ivan Kartyshov, Anna Akenteva
Reviewed-by: Craig Ringer, Thomas Munro, Robert Haas, Kyotaro Horiguchi
Reviewed-by: Masahiko Sawada, Ants Aasma, Dmitry Ivanov, Simon Riggs
Reviewed-by: Amit Kapila, Alexander Korotkov
Discussion: https://postgr.es/m/0240c26c-9f84-30ea-fca9-93ab2df5f305%40postgrespro.ru
2020-04-07 23:51:10 +03:00
..
.gitignore Revert "Add gitignore entries for jsonpath_gram.h" 2019-03-23 00:19:34 +01:00
acl.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
aclchk_internal.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
array.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
arrayaccess.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
ascii.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
attoptcache.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
builtins.h Adjust bytea get_bit/set_bit to use int8 not int4 for bit numbering. 2020-04-07 15:57:58 -04:00
bytea.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
cash.h Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
catcache.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
combocid.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
date.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
datetime.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
datum.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
dsa.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
dynahash.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
elog.h Go back to returning int from ereport auxiliary functions. 2020-03-25 11:57:36 -04:00
evtcache.h Fix up recent breakage of headerscheck and cpluspluscheck. 2020-03-21 18:28:44 -04:00
expandeddatum.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
expandedrecord.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
float.h Avoid a performance regression in float overflow/underflow detection. 2020-02-13 13:37:43 -05:00
fmgrtab.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
formatting.h Allow to_date/to_timestamp to recognize non-English month/day names. 2020-03-03 11:06:47 -05:00
freepage.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
geo_decls.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
guc.h Improve user control over truncation of logged bind-parameter values. 2020-04-02 15:04:51 -04:00
guc_tables.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
help_config.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
hsearch.h Put all the prototypes for hashfn.c into the same header file. 2020-02-24 17:22:45 +05:30
index_selfuncs.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
inet.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
int8.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
inval.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
json.h Adjust src/include/utils/jsonapi.h so it's not backend-only. 2020-01-24 09:58:37 -08:00
jsonb.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
jsonfuncs.h Move jsonapi.c and jsonapi.h to src/common. 2020-01-29 10:22:51 -05:00
jsonpath.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
logtape.h Introduce LogicalTapeSetExtend(). 2020-03-09 10:40:02 -07:00
lsyscache.h Preserve clustered index after rewrites with ALTER TABLE 2020-04-06 11:03:49 +09:00
memdebug.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
memutils.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
numeric.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
palloc.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
partcache.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_crc.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_locale.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_lsn.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pg_rusage.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
pidfile.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
plancache.h Rearrange validity checks for plpgsql "simple" expressions. 2020-03-27 14:47:34 -04:00
portal.h Represent command completion tags as structs 2020-03-02 18:19:51 -03:00
ps_status.h Refactor ps_status.c API 2020-03-11 16:38:31 +01:00
queryenvironment.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
rangetypes.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
regproc.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
rel.h Skip WAL for new relfilenodes, under wal_level=minimal. 2020-04-04 12:25:34 -07:00
relcache.h Skip WAL for new relfilenodes, under wal_level=minimal. 2020-04-04 12:25:34 -07:00
relfilenodemap.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
relmapper.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
relptr.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
reltrigger.h Enable BEFORE row-level triggers for partitioned tables 2020-03-18 18:58:05 -03:00
resowner.h Improve performance of "simple expressions" in PL/pgSQL. 2020-03-26 18:58:57 -04:00
resowner_private.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
rls.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
ruleutils.h Implement operator class parameters 2020-03-30 19:17:23 +03:00
sampling.h Report progress of ANALYZE commands 2020-01-15 11:14:39 -03:00
selfuncs.h Improve selectivity estimation for assorted match-style operators. 2020-04-01 10:32:33 -04:00
sharedtuplestore.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
snapmgr.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
snapshot.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
sortsupport.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
spccache.h Introduce a maintenance_io_concurrency setting. 2020-03-16 17:14:26 +13:00
syscache.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
timeout.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
timestamp.h Implement waiting for given lsn at transaction start 2020-04-07 23:51:10 +03:00
tuplesort.h Fix representation of SORT_TYPE_STILL_IN_PROGRESS. 2020-04-06 22:22:13 -04:00
tuplestore.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
typcache.h Allow ALTER TYPE to change some properties of a base type. 2020-03-06 12:19:29 -05:00
tzparser.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
uuid.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
varbit.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
varlena.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00
xid8.h Add SQL type xid8 to expose FullTransactionId to users. 2020-04-07 12:03:59 +12:00
xml.h Update copyrights for 2020 2020-01-01 12:21:45 -05:00