Tom Lane 7c31874945 Avoid getting more than AccessShareLock when deparsing a query. ... In make_ruledef and get_query_def, we have long used AcquireRewriteLocks to ensure that the querytree we are about to deparse is up-to-date and the schemas of the underlying relations aren't changing. Howwever, that function thinks the query is about to be executed, so it acquires locks that are stronger than necessary for the purpose of deparsing. Thus for example, if pg_dump asks to deparse a rule that includes "INSERT INTO t", we'd acquire RowExclusiveLock on t. That results in interference with concurrent transactions that might for example ask for ShareLock on t. Since pg_dump is documented as being purely read-only, this is unexpected. (Worse, it used to actually be read-only; this behavior dates back only to 8.1, cf commit ba4200246.) Fix this by adding a parameter to AcquireRewriteLocks to tell it whether we want the "real" execution locks or only AccessShareLock. Report, diagnosis, and patch by Dean Rasheed. Back-patch to all supported branches.		2014-03-06 19:31:05 -05:00
..
access	Do wal_level and hot standby checks when doing crash-then-archive recovery.	2014-03-05 14:48:14 +02:00
bootstrap	Avoid repeated name lookups during table and index DDL.	2014-02-17 09:33:31 -05:00
catalog	Constructors for interval, timestamp, timestamptz	2014-03-04 15:09:43 -03:00
commands	Avoid getting more than AccessShareLock when deparsing a query.	2014-03-06 19:31:05 -05:00
executor	Don't reject ROW_MARK_REFERENCE rowmarks for materialized views.	2014-03-06 11:37:02 -05:00
foreign	Update copyright for 2014	2014-01-07 16:05:30 -05:00
lib	Update copyright for 2014	2014-01-07 16:05:30 -05:00
libpq	Another round of Coverity fixes	2014-03-03 03:18:51 -05:00
main	Fix possible crashes due to using elog/ereport too early in startup.	2014-01-11 16:36:07 -05:00
nodes	Avoid repeated name lookups during table and index DDL.	2014-02-17 09:33:31 -05:00
optimizer	Fix bogus handling of "postponed" lateral quals.	2014-01-30 14:51:16 -05:00
parser	Provide a FORCE NULL option to COPY in CSV mode.	2014-03-04 17:31:59 -05:00
po	Translation updates	2013-12-02 00:17:07 -05:00
port	Rename huge_tlb_pages to huge_pages, and improve docs.	2014-03-03 20:52:48 +02:00
postmaster	Remove the correct pgstat file on DROP DATABASE	2014-03-05 13:03:29 -03:00
regex	Allow regex operations to be terminated early by query cancel requests.	2014-03-01 15:20:56 -05:00
replication	Send keepalives from walsender even when busy sending WAL.	2014-03-06 21:38:51 +02:00
rewrite	Avoid getting more than AccessShareLock when deparsing a query.	2014-03-06 19:31:05 -05:00
snowball	Prefer pg_any_to_server/pg_server_to_any over pg_do_encoding_conversion.	2014-02-23 16:59:05 -05:00
storage	Fix some typos introduced by the logical decoding patch.	2014-03-05 13:00:22 -05:00
tcop	Introduce logical decoding.	2014-03-03 16:32:18 -05:00
tsearch	Another round of Coverity fixes	2014-03-03 03:18:51 -05:00
utils	Avoid getting more than AccessShareLock when deparsing a query.	2014-03-06 19:31:05 -05:00
.gitignore	Add gitignore for mingw/cygwin build outputs	2011-06-09 18:11:47 +02:00
common.mk	Remove maintainer-check target, fold into normal build	2013-10-10 20:11:56 -04:00
Makefile	Get rid of use of dlltool in Mingw builds.	2014-02-11 12:56:20 -05:00
nls.mk	Add libpgcommon to backend gettext source files	2013-10-19 13:49:05 -04:00