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path: root/src/backend/utils/adt/pgstatfuncs.c
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* Move Timestamp/Interval typedefs and basic macros into datatype/timestamp.h.Tom Lane2011-09-09
| | | | | | | | | | | As per my recent proposal, this refactors things so that these typedefs and macros are available in a header that can be included in frontend-ish code. I also changed various headers that were undesirably including utils/timestamp.h to include datatype/timestamp.h instead. Unsurprisingly, this showed that half the system was getting utils/timestamp.h by way of xlog.h. No actual code changes here, just header refactoring.
* Use clearer notation for getnameinfo() return handlingPeter Eisentraut2011-08-09
| | | | | | | | | | | | | | Writing if (getnameinfo(...)) handle_error(); reads quite strangely, so use something like if (getnameinfo(...) != 0) handle_error(); instead.
* Mark pg_stat_reset_shared as strictMagnus Hagander2011-07-03
| | | | | | | | | | This is the proper fix for bug #6082 about pg_stat_reset_shared(NULL) causing a crash, and it reverts commit 79aa44536f3980d324f486504cde643ce23bf5c6 on head. The workaround of throwing an error from inside the function is left on backbranches (including 9.1) since this change requires a new initdb.
* Protect pg_stat_reset_shared() against NULL inputMagnus Hagander2011-06-29
| | | | Per bug #6082, reported by Steve Haslam
* Add C comment mentioning pg_stat_activity.procpid should have beenBruce Momjian2011-06-11
| | | | called 'pid'.
* pgindent run before PG 9.1 beta 1.Bruce Momjian2011-04-10
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* Clean up cruft around collation initialization for tupdescs and scankeys.Tom Lane2011-03-26
| | | | | I found actual bugs in GiST and plpgsql; the rest of this is cosmetic but meant to decrease the odds of future bugs of omission.
* Add client_hostname field to pg_stat_activity.Robert Haas2011-02-17
| | | | Peter Eisentraut, reviewed by Steve Singer, Alvaro Herrera, and me.
* Track last time for statistics reset on databases and bgwriterMagnus Hagander2011-02-10
| | | | | | | | Tracks one counter for each database, which is reset whenever the statistics for any individual object inside the database is reset, and one counter for the background writer. Tomas Vondra, reviewed by Greg Smith
* Add views and functions to monitor hot standby query conflictsMagnus Hagander2011-01-03
| | | | | Add the view pg_stat_database_conflicts and a column to pg_stat_database, and the underlying functions to provide the information.
* Stamp copyrights for year 2011.Bruce Momjian2011-01-01
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* Add new buffers_backend_fsync field to pg_stat_bgwriter.Robert Haas2010-11-15
| | | | | | | | | | | | This new field counts the number of times that a backend which writes a buffer out to the OS must also fsync() it. This happens when the bgwriter fsync request queue is full, and is generally detrimental to performance, so it's good to know when it's happening. Along the way, log a new message at level DEBUG1 whenever we fail to hand off an fsync, so that the problem can also be seen in examination of log files (if the logging level is cranked up high enough). Greg Smith, with minor tweaks by me.
* Remove cvs keywords from all files.Magnus Hagander2010-09-20
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* Add vacuum and analyze counters to pg_stat_*_tables views.Magnus Hagander2010-08-21
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* Add stats functions and views to provide access to a transaction's ownTom Lane2010-08-08
| | | | | | | | statistics counts. These numbers are being accumulated but haven't yet been transmitted to the collector (and won't be, until the transaction ends). For some purposes, though, it's handy to be able to look at them. Joel Jacobson, reviewed by Itagaki Takahiro
* pgindent run for 9.0Bruce Momjian2010-02-26
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* Add functions to reset the statistics counter for a single table/index orMagnus Hagander2010-01-28
| | | | a single function.
* Add pg_stat_reset_shared('bgwriter') to reset the cluster-wide sharedMagnus Hagander2010-01-19
| | | | | | statistics of the bgwriter. Greg Smith
* Update copyright for the year 2010.Bruce Momjian2010-01-02
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* Make pg_stat_activity.application_name visible to all users, rather thanTom Lane2009-11-29
| | | | | being hidden when current_query is. Relocate it to a column position more consistent with that behavior. Per discussion.
* Add support for an application_name parameter, which is displayed inTom Lane2009-11-28
| | | | | | pg_stat_activity and recorded in log entries. Dave Page, reviewed by Andres Freund
* 8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef listBruce Momjian2009-06-11
| | | | provided by Andrew.
* Update copyright for 2009.Bruce Momjian2009-01-01
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* Add support for tracking call counts and elapsed runtime for user-definedTom Lane2008-05-15
| | | | | | | | | | functions. Note that because this patch changes FmgrInfo, any external C functions you might be testing with 8.4 will need to be recompiled. Patch by Martin Pihlak, some editorialization by me (principally, removing tracking of getrusage() numbers)
* Restructure some header files a bit, in particular heapam.h, by removing someAlvaro Herrera2008-05-12
| | | | | | | | | | | | unnecessary #include lines in it. Also, move some tuple routine prototypes and macros to htup.h, which allows removal of heapam.h inclusion from some .c files. For this to work, a new header file access/sysattr.h needed to be created, initially containing attribute numbers of system columns, for pg_dump usage. While at it, make contrib ltree, intarray and hstore header files more consistent with our header style.
* Make the pg_stat_activity view call a SRF (pg_stat_get_activity())Magnus Hagander2008-05-07
| | | | | | | instead of calling a bunch of individual functions. This function can also be called directly, taking a PID as an argument, to return only the data for a single PID.
* Simplify and standardize conversions between TEXT datums and ordinary CTom Lane2008-03-25
| | | | | | | | | | | | | | | | | | | | strings. This patch introduces four support functions cstring_to_text, cstring_to_text_with_len, text_to_cstring, and text_to_cstring_buffer, and two macros CStringGetTextDatum and TextDatumGetCString. A number of existing macros that provided variants on these themes were removed. Most of the places that need to make such conversions now require just one function or macro call, in place of the multiple notational layers that used to be needed. There are no longer any direct calls of textout or textin, and we got most of the places that were using handmade conversions via memcpy (there may be a few still lurking, though). This commit doesn't make any serious effort to eliminate transient memory leaks caused by detoasting toasted text objects before they reach text_to_cstring. We changed PG_GETARG_TEXT_P to PG_GETARG_TEXT_PP in a few places where it was easy, but much more could be done. Brendan Jurd and Tom Lane
* Update copyrights in source tree to 2008.Bruce Momjian2008-01-01
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* pgindent run for 8.3.Bruce Momjian2007-11-15
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* Just-in-time background writing strategy. This code avoids re-scanningTom Lane2007-09-25
| | | | | | | | | | | buffers that cannot possibly need to be cleaned, and estimates how many buffers it should try to clean based on moving averages of recent allocation requests and density of reusable buffers. The patch also adds a couple more columns to pg_stat_bgwriter to help measure the effectiveness of the bgwriter. Greg Smith, building on his own work and ideas from several other people, in particular a much older patch from Itagaki Takahiro.
* HOT updates. When we update a tuple without changing any of its indexedTom Lane2007-09-20
| | | | | | | | | | | | columns, and the new version can be stored on the same heap page, we no longer generate extra index entries for the new version. Instead, index searches follow the HOT-chain links to ensure they find the correct tuple version. In addition, this patch introduces the ability to "prune" dead tuples on a per-page basis, without having to do a complete VACUUM pass to recover space. VACUUM is still needed to clean up dead index entries, however. Pavan Deolasee, with help from a bunch of other people.
* Rename recently-added pg_stat_activity column from txn_start to xact_start,Tom Lane2007-09-11
| | | | for consistency with other column names such as in pg_stat_database.
* Implement "distributed" checkpoints in which the checkpoint I/O is spreadTom Lane2007-06-28
| | | | | | | | | | | | | over a fairly long period of time, rather than being spat out in a burst. This happens only for background checkpoints carried out by the bgwriter; other cases, such as a shutdown checkpoint, are still done at full speed. Remove the "all buffers" scan in the bgwriter, and associated stats infrastructure, since this seems no longer very useful when the checkpoint itself is properly throttled. Original patch by Itagaki Takahiro, reworked by Heikki Linnakangas, and some minor API editorialization by me.
* Temporary fix for the problem that pg_stat_activity, inet_client_addr(),Tom Lane2007-05-17
| | | | | | | | | | | | | | and inet_server_addr() fail if the client connected over a "scoped" IPv6 address. In this case getnameinfo() will return a string ending with a poorly-standardized "%something" zone specifier, which these functions try to feed to network_in(), which won't take it. So that we don't lose functionality altogether, suppress the zone specifier before giving the string to network_in(). Per report from Brian Hirt. TODO: probably someday the inet type should support scoped IPv6 addresses, and then this patch should be reverted. Backpatch to 8.2 ... is it worth going further?
* Add some instrumentation to the bgwriter, through the stats collector.Magnus Hagander2007-03-30
| | | | New view pg_stat_bgwriter, and the functions required to build it.
* Add new columns for tuple statistics on a database level toMagnus Hagander2007-03-16
| | | | pg_stat_database.
* Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len).Tom Lane2007-02-27
| | | | | | | | | | | Get rid of VARATT_SIZE and VARATT_DATA, which were simply redundant with VARSIZE and VARDATA, and as a consequence almost no code was using the longer names. Rename the length fields of struct varlena and various derived structures to catch anyplace that was accessing them directly; and clean up various places so caught. In itself this patch doesn't change any behavior at all, but it is necessary infrastructure if we hope to play any games with the representation of varlena headers. Greg Stark and Tom Lane
* Add a function pg_stat_clear_snapshot() that discards any statistics snapshotTom Lane2007-02-07
| | | | | | | | | | | | already collected in the current transaction; this allows plpgsql functions to watch for stats updates even though they are confined to a single transaction. Use this instead of the previous kluge involving pg_stat_file() to wait for the stats collector to update in the stats regression test. Internally, decouple storage of stats snapshots from transaction boundaries; they'll now stick around until someone calls pgstat_clear_snapshot --- which xact.c still does at transaction end, to maintain the previous behavior. This makes the logic a lot cleaner, at the price of a couple dozen cycles per transaction exit.
* Update CVS HEAD for 2007 copyright. Back branches are typically notBruce Momjian2007-01-05
| | | | back-stamped for this.
* Add n_live_tuples and n_dead_tuples to pg_stat_all_tables.Bruce Momjian2007-01-02
| | | | | | | | | The purpose is to allow autovacuum-esq conditional vacuuming and clustering using SQL to discover the required stats. No documentation updates required. Catalog version updated. Glen Parker
* Add a txn_start column to pg_stat_activity. This makes it easier toNeil Conway2006-12-06
| | | | | | | | identify long-running transactions. Since we already need to record the transaction-start time (e.g. for now()), we don't need any additional system calls to report this information. Catversion bumped, initdb required.
* pgindent run for 8.2.Bruce Momjian2006-10-04
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* Add a 'waiting' column to pg_stat_activity to carry the same informationTom Lane2006-08-19
| | | | | | | that ps_status provides by appending 'waiting' to the PS display. This completes the project of making it feasible to turn off process title updates and instead rely on pg_stat_activity. Per my suggestion a few weeks ago.
* Remove 576 references of include files that were not needed.Bruce Momjian2006-07-14
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* Alphabetically order reference to include files, "N" - "S".Bruce Momjian2006-07-11
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* Take the statistics collector out of the loop for monitoring backends'Tom Lane2006-06-19
| | | | | | | current commands; instead, store current-status information in shared memory. This substantially reduces the overhead of stats_command_string and also ensures that pg_stat_activity is fully up to date at all times. Per my recent proposal.
* Add last-vacuum/analyze-time columns to the stats collector, both manual andAlvaro Herrera2006-05-19
| | | | | | | | | issued by autovacuum. Add accessor functions to them, and use those in the pg_stat_*_tables system views. Catalog version bumped due to changes in the pgstat views and the pgstat file. Patch from Larry Rosenman, minor improvements by me.
* Have autovacuum report its activities to the stat collector.Alvaro Herrera2006-05-19
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* Update copyright for 2006. Update scripts.Bruce Momjian2006-03-05
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* Clean up libpq's pollution of application namespace by renaming theTom Lane2005-10-17
| | | | | | exported routines of ip.c, md5.c, and fe-auth.c to begin with 'pg_'. Also get rid of the vestigial fe_setauthsvc/fe_getauthsvc routines altogether.
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