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postgresql/src/include/utils
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Alvaro Herrera 07cefdfb7a Fix snapshot management, take two. 
Partially revert the previous patch I installed and replace it with a more
general fix: any time a snapshot is pushed as Active, we need to ensure that it
will not be modified in the future.  This means that if the same snapshot is
used as CurrentSnapshot, it needs to be copied separately.  This affects
serializable transactions only, because CurrentSnapshot has already been copied
by RegisterSnapshot and so PushActiveSnapshot does not think it needs another
copy.  However, CommandCounterIncrement would modify CurrentSnapshot, whereas
ActiveSnapshots must not have their command counters incremented.

I say "partially" because the regression test I added for the previous bug
has been kept.

(This restores 8.3 behavior, because before snapmgr.c existed, any snapshot set
as Active was copied.)

Per bug report from Stuart Bishop in
6bc73d4c0910042358k3d1adff3qa36f8df75198ecea@mail.gmail.com
2009-10-07 16:27:18 +00:00
..
acl.h Create an ALTER DEFAULT PRIVILEGES command, which allows users to adjust 2009-10-05 19:24:49 +00:00
array.h Remove SQL-compatibility function cardinality(). It is not exactly clear 2009-04-09 17:39:50 +00:00
ascii.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
builtins.h Fix/improve bytea and boolean support in PL/Python 2009-09-09 19:00:09 +00:00
bytea.h Support hex-string input and output for type BYTEA. 2009-08-04 16:08:37 +00:00
cash.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
catcache.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
combocid.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
date.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
datetime.h Tigthen binary receive functions so that they reject values that the text 2009-09-04 11:20:23 +00:00
datum.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
dynahash.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
dynamic_loader.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
elog.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
errcodes.h Add new SQL:2008 error codes for invalid LIMIT and OFFSET values. Remove 2009-03-04 10:55:00 +00:00
fmgrtab.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
formatting.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
geo_decls.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
guc.h Fix a couple of issues in recent patch to print updates to postgresql.conf 2009-10-03 18:04:57 +00:00
guc_tables.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
help_config.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
hsearch.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
inet.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
int8.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
inval.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
logtape.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
lsyscache.h Extend EXPLAIN to support output in XML or JSON format. 2009-08-10 05:46:50 +00:00
memutils.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
nabstime.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
numeric.h Support EEEE (scientific notation) in to_char(). 2009-08-10 18:29:27 +00:00
palloc.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
pg_crc.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
pg_locale.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
pg_lzcompress.h This patch addresses some issues in TOAST compression strategy that 2008-03-07 23:20:21 +00:00
pg_rusage.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
plancache.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
portal.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
ps_status.h Add GUC update_process_title to control whether 'ps' display is updated 2006-06-27 22:16:44 +00:00
rel.h Add system catalog columns pg_constraint.conindid and pg_trigger.tgconstrindid. 2009-07-28 02:56:31 +00:00
relcache.h Allow backends to start up without use of the flat-file copy of pg_database. 2009-08-12 20:53:31 +00:00
resowner.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
selfuncs.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
snapmgr.h Fix snapshot management, take two. 2009-10-07 16:27:18 +00:00
snapshot.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
syscache.h Create an ALTER DEFAULT PRIVILEGES command, which allows users to adjust 2009-10-05 19:24:49 +00:00
timestamp.h Fix overflow for INTERVAL 'x ms' where x is more than a couple million, 2009-08-18 21:23:14 +00:00
tqual.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
tuplesort.h Extend EXPLAIN to support output in XML or JSON format. 2009-08-10 05:46:50 +00:00
tuplestore.h 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list 2009-06-11 14:49:15 +00:00
typcache.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
tzparser.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
uuid.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
varbit.h Update copyright for 2009. 2009-01-01 17:24:05 +00:00
xml.h Extend EXPLAIN to support output in XML or JSON format. 2009-08-10 05:46:50 +00:00