895a94de6d
but no database changes have been made since the last CommandCounterIncrement. This should result in a significant improvement in the number of "commands" that can typically be performed within a transaction before hitting the 2^32 CommandId size limit. In particular this buys back (and more) the possible adverse consequences of my previous patch to fix plan caching behavior. The implementation requires tracking whether the current CommandCounter value has been "used" to mark any tuples. CommandCounter values stored into snapshots are presumed not to be used for this purpose. This requires some small executor changes, since the executor used to conflate the curcid of the snapshot it was using with the command ID to mark output tuples with. Separating these concepts allows some small simplifications in executor APIs. Something for the TODO list: look into having CommandCounterIncrement not do AcceptInvalidationMessages. It seems fairly bogus to be doing it there, but exactly where to do it instead isn't clear, and I'm disinclined to mess with asynchronous behavior during late beta. |
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.. | ||
adminpack | ||
btree_gist | ||
chkpass | ||
cube | ||
dblink | ||
dict_int | ||
dict_xsyn | ||
earthdistance | ||
fuzzystrmatch | ||
hstore | ||
intagg | ||
intarray | ||
isn | ||
lo | ||
ltree | ||
oid2name | ||
pageinspect | ||
pg_buffercache | ||
pg_freespacemap | ||
pg_standby | ||
pg_trgm | ||
pgbench | ||
pgcrypto | ||
pgrowlocks | ||
pgstattuple | ||
seg | ||
spi | ||
sslinfo | ||
start-scripts | ||
tablefunc | ||
test_parser | ||
tsearch2 | ||
uuid-ossp | ||
vacuumlo | ||
xml2 | ||
contrib-global.mk | ||
Makefile | ||
README |
The PostgreSQL contrib tree --------------------------- This subtree contains porting tools, analysis utilities, and plug-in features that are not part of the core PostgreSQL system, mainly because they address a limited audience or are too experimental to be part of the main source tree. This does not preclude their usefulness. User documentation for each module appears in the main SGML documentation. Most items can be built with `gmake all' and installed with `gmake install' in the usual fashion, after you have run the `configure' script in the top-level directory. Some directories supply new user-defined functions, operators, or types. In these cases, after you have installed the files you need to register the new entities in the database system by running the commands in the supplied .sql file. For example, $ psql -d dbname -f module.sql See the PostgreSQL documentation for more information about this procedure. Index: ------ adminpack - File and log manipulation routines, used by pgAdmin by Dave Page <dpage@vale-housing.co.uk> btree_gist - Support for emulating BTREE indexing in GiST by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru> chkpass - An auto-encrypted password datatype by D'Arcy J.M. Cain <darcy@druid.net> cube - Multidimensional-cube datatype (GiST indexing example) by Gene Selkov, Jr. <selkovjr@mcs.anl.gov> dblink - Allows remote query execution by Joe Conway <mail@joeconway.com> dict_int - Text search dictionary template for integers by Sergey Karpov <karpov@sao.ru> dict_xsyn - Text search dictionary template for extended synonym processing by Sergey Karpov <karpov@sao.ru> earthdistance - Operator for computing earth distance between two points by Hal Snyder <hal@vailsys.com> fuzzystrmatch - Levenshtein, metaphone, and soundex fuzzy string matching by Joe Conway <mail@joeconway.com>, Joel Burton <jburton@scw.org> hstore - Module for storing (key, value) pairs by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru> intagg - Integer aggregator by mlw <markw@mohawksoft.com> intarray - Index support for arrays of int4, using GiST by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su> isn - PostgreSQL type extensions for ISBN, ISSN, ISMN, EAN13 product numbers by Germ<72>n M<>ndez Bravo (Kronuz) <kronuz@hotmail.com> lo - Large Object maintenance by Peter Mount <peter@retep.org.uk> ltree - Tree-like data structures by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su> oid2name - Maps numeric files to table names by B Palmer <bpalmer@crimelabs.net> pageinspect - Allows inspection of database pages Heikki Linnakangas <heikki@enterprisedb.com> pg_buffercache - Real time queries on the shared buffer cache by Mark Kirkwood <markir@paradise.net.nz> pg_freespacemap - Displays the contents of the free space map (FSM) by Mark Kirkwood <markir@paradise.net.nz> pg_standby - Sample archive_command for warm standby operation by Simon Riggs <simon@2ndquadrant.com> pg_trgm - Functions for determining the similarity of text based on trigram matching. by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru> pgbench - TPC-B like benchmarking tool by Tatsuo Ishii <ishii@sraoss.co.jp> pgcrypto - Cryptographic functions by Marko Kreen <marko@l-t.ee> pgrowlocks - A function to return row locking information by Tatsuo Ishii <ishii@sraoss.co.jp> pgstattuple - Functions to return statistics about "dead" tuples and free space within a table by Tatsuo Ishii <ishii@sraoss.co.jp> seg - Confidence-interval datatype (GiST indexing example) by Gene Selkov, Jr. <selkovjr@mcs.anl.gov> spi - Various trigger functions, examples for using SPI. sslinfo - Functions to get information about SSL certificates by Victor Wagner <vitus@cryptocom.ru> start-scripts - Scripts for starting the server at boot time on various platforms. tablefunc - Examples of functions returning tables by Joe Conway <mail@joeconway.com> test_parser - Sample text search parser by Sergey Karpov <karpov@sao.ru> tsearch2 - Compatibility package for the pre-8.3 implementation of text search. Pavel Stehule <pavel.stehule@gmail.com>, based on code originally by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su>. uuid-ossp - UUID generation functions by Peter Eisentraut <peter_e@gmx.net> vacuumlo - Remove orphaned large objects by Peter T Mount <peter@retep.org.uk> xml2 - Storing XML in PostgreSQL by John Gray <jgray@azuli.co.uk>