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* Minor coding cleanups.Tom Lane2001-01-14
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* Add more critical-section calls: all code sections that hold spinlocksTom Lane2001-01-12
| | | | | | | | | | | are now critical sections, so as to ensure die() won't interrupt us while we are munging shared-memory data structures. Avoid insecure intermediate states in some code that proc_exit will call, like palloc/pfree. Rename START/END_CRIT_CODE to START/END_CRIT_SECTION, since that seems to be what people tend to call them anyway, and make them be called with () like a function call, in hopes of not confusing pg_indent. I doubt that this is sufficient to make SIGTERM safe anywhere; there's just too much code that could get invoked during proc_exit().
* Clean up backend-exit-time cleanup behavior. Use on_shmem_exit callbacksTom Lane2000-12-18
| | | | | | to ensure that we have released buffer refcounts and so forth, rather than putting ad-hoc operations before (some of the calls to) proc_exit. Add commentary to discourage future hackers from repeating that mistake.
* BugfixJan Wieck2000-12-14
| | | | | | | | Trying to connect to template0 left a global referenced buffer because the scan of pg_database wasn't ended properly before elog(FATAL). Jan
* No more #ifdef XLOG.Vadim B. Mikheev2000-11-30
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* Significant cleanups in SysV IPC handling (shared mem and semaphores).Tom Lane2000-11-28
| | | | | | | | | | | IPC key assignment will now work correctly even when multiple postmasters are using same logical port number (which is possible given -k switch). There is only one shared-mem segment per postmaster now, not 3. Rip out broken code for non-TAS case in bufmgr and xlog, substitute a complete S_LOCK emulation using semaphores in spin.c. TAS and non-TAS logic is now exactly the same. When deadlock is detected, "Deadlock detected" is now the elog(ERROR) message, rather than a NOTICE that comes out before an unhelpful ERROR.
* Change SearchSysCache coding conventions so that a reference count isTom Lane2000-11-16
| | | | | | | maintained for each cache entry. A cache entry will not be freed until the matching ReleaseSysCache call has been executed. This eliminates worries about cache entries getting dropped while still in use. See my posting to pg-hackers of even date for more info.
* Extend CREATE DATABASE to allow selection of a template database to beTom Lane2000-11-14
| | | | | | | | | | cloned, rather than always cloning template1. Modify initdb to generate two identical databases rather than one, template0 and template1. Connections to template0 are disallowed, so that it will always remain in its virgin as-initdb'd state. pg_dumpall now dumps databases with restore commands that say CREATE DATABASE foo WITH TEMPLATE = template0. This allows proper behavior when there is user-added data in template1. initdb forced!
* Keep track of the last active slot in the shared ProcState array, soTom Lane2000-11-12
| | | | | | | | | that search loops only have to scan that far and not through all maxBackends entries. This eliminates a performance penalty for setting maxBackends much higher than the average number of active backends. Also, eliminate no-longer-used 'backend tag' concept. Remove setting of environment variables at backend start (except for CYR_RECODE), since none of them are being examined by the backend any longer.
* WALVadim B. Mikheev2000-10-28
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* New file naming. Database OID is used as "tablespace" id andVadim B. Mikheev2000-10-16
| | | | | relation OID is used as file node on creation but may be changed later if required. Regression Tests Approved (c) -:)))
* Banish caddr_t (mostly), use Datum where appropriate.Peter Eisentraut2000-10-02
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* Implement differentiation between CURRENT_USER and SESSION_USER as per SQL.Peter Eisentraut2000-09-19
| | | | | | There is still no effective difference but it will kick in once setuid functions exist (not included here). Make old getpgusername() alias for current_user.
* Code cleanup of user name and user id handling in the backend. The currentPeter Eisentraut2000-09-06
| | | | | | | | | | | user is now defined in terms of the user id, the user name is only computed upon request (for display purposes). This is kind of the opposite of the previous state, which would maintain the user name and compute the user id for permission checks. Besides perhaps saving a few cycles (integer vs string), this now creates a single point of attack for changing the user id during a connection, for purposes of "setuid" functions, etc.
* Toast all the system-table columns that seem to need it. It turns outTom Lane2000-08-06
| | | | | | | | | | | | | | | | that giving pg_proc a toast table required solving the same problems we'd have to solve for pg_class --- pg_proc is one of the relations that gets bootstrapped in relcache.c. Solution is to go back at the end of initialization and read in the *real* pg_class row to replace the phony entry created by formrdesc(). This should work as long as there's no need to touch any toasted values during initialization, which seems a reasonable assumption. Although I did not add a toast-table for every single system table with a varlena attribute, I believe that it would work to just do ALTER TABLE pg_class CREATE TOAST TABLE. So anyone who's really intent on having several thousand ACL entries for a rel could do it. NOTE: I didn't force initdb, but you must do one to see the effects of this patch.
* Remove long-dead support for invoking queries from dynamically loadedTom Lane2000-07-08
| | | | | | backend functions via backend PQexec(). The SPI interface has long been our only documented way to do this, and the backend pqexec/portal code is unused and suffering bit-rot. I'm putting it out of its misery.
* Remove unused variable. (Hey Peter, you use gcc, why didn't youTom Lane2000-07-03
| | | | notice this warning?)
* Version number now set in configure, available through Makefile.globalPeter Eisentraut2000-07-02
| | | | | | | | | | and config.h. Adjusted all referring code. Scrapped pg_version and changed initdb accordingly. Integrated src/utils/version.c into src/backend/utils/init/miscinit.c. Changed all callers. Set version number to `7.1devel'. (Non-numeric version suffixes now allowed.)
* First phase of memory management rewrite (see backend/utils/mmgr/READMETom Lane2000-06-28
| | | | | | | | | | | | | for details). It doesn't really do that much yet, since there are no short-term memory contexts in the executor, but the infrastructure is in place and long-term contexts are handled reasonably. A few long- standing bugs have been fixed, such as 'VACUUM; anything' in a single query string crashing. Also, out-of-memory is now considered a recoverable ERROR, not FATAL. Eliminate a large amount of crufty, now-dead code in and around memory management. Fix problem with holding off SIGTRAP, SIGSEGV, etc in postmaster and backend startup.
* Remove unused include files. Do not touch /port or includes used by defines.Bruce Momjian2000-05-30
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* First round of changes for new fmgr interface. fmgr itself and theTom Lane2000-05-28
| | | | | | | key call sites are changed, but most called functions are still oldstyle. An exception is that the PL managers are updated (so, for example, NULL handling now behaves as expected in plperl and plpgsql functions). NOTE initdb is forced due to added column in pg_proc.
* Ye-old pgindent run. Same 4-space tabs.Bruce Momjian2000-04-12
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* Add:Bruce Momjian2000-01-26
| | | | | | * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
* Fixed everything in and surrounding createdb and dropdb to make it morePeter Eisentraut2000-01-13
| | | | error-proof. Rearranged some old code and removed dead sections.
* to live in a transaction before access to dbHiroshi Inoue1999-12-22
| | | | during backend startup.
* Repair problem exposed by Jan's new parallel-regression-test scaffold:Tom Lane1999-11-21
| | | | | | | inval.c thought it could safely use the catcache to look up the OIDs of system relations. Not good, considering that inval.c could be called during catcache loading, if a shared-inval message arrives. Rip out the lookup logic and instead use the known OIDs from pg_class.h.
* Standardize on MAXPGPATH as the size of a file pathname buffer,Tom Lane1999-10-25
| | | | | | | eliminating some wildly inconsistent coding in various parts of the system. I set MAXPGPATH = 1024 in config.h.in. If anyone is really convinced that there ought to be a configure-time test to set the value, go right ahead ... but I think it's a waste of time.
* XLOG (also known as WAL -:)) Bootstrap/Startup/Shutdown.Vadim B. Mikheev1999-10-06
| | | | | First step in cleaning up backend initialization code. Fix for FATAL: now FATAL is ERROR + exit.
* Make tree compilable (+WAL).Vadim B. Mikheev1999-09-28
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* Several changes here, not very related but touching some of the same files.Tom Lane1999-09-24
| | | | | | | | | | | | | | | | | | | | | * Buffer refcount cleanup (per my "progress report" to pghackers, 9/22). * Add links to backend PROC structs to sinval's array of per-backend info, and use these links for routines that need to check the state of all backends (rather than the slow, complicated search of the ShmemIndex hashtable that was used before). Add databaseOID to PROC structs. * Use this to implement an interlock that prevents DESTROY DATABASE of a database containing running backends. (It's a little tricky to prevent a concurrently-starting backend from getting in there, since the new backend is not able to lock anything at the time it tries to look up its database in pg_database. My solution is to recheck that the DB is OK at the end of InitPostgres. It may not be a 100% solution, but it's a lot better than no interlock at all...) * In ALTER TABLE RENAME, flush buffers for the relation before doing the rename of the physical files, to ensure we don't get failures later from mdblindwrt(). * Update TRUNCATE patch so that it actually compiles against current sources :-(. You should do "make clean all" after pulling these changes.
* Move some system includes into c.h, and remove duplicates.Bruce Momjian1999-07-17
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* Fix for multi-byte includes.Bruce Momjian1999-07-17
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* More cleanupBruce Momjian1999-07-16
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* Final cleanupBruce Momjian1999-07-16
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* Update #include cleanupsBruce Momjian1999-07-16
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* Change #include's to use <> and "" as appropriate.Bruce Momjian1999-07-15
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* Remove unused #includes in *.c files.Bruce Momjian1999-07-15
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* Clean up #include in /include directory. Add scripts for checking includes.Bruce Momjian1999-07-15
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* pgindent run over code.Bruce Momjian1999-05-25
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* comments cleanup.Bruce Momjian1999-02-22
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* Allow maximum number of backends to be set at configure timeTom Lane1999-02-19
| | | | | | | | | (--with-maxbackends). Add a postmaster switch (-N backends) that allows the limit to be reduced at postmaster start time. (You can't increase it, sorry to say, because there are still some fixed-size arrays.) Grab the number of semaphores indicated by min(MAXBACKENDS, -N) at postmaster startup, so that this particular form of bogus configuration is exposed immediately rather than under heavy load.
* Change my-function-name-- to my_function_name, and optimizer renames.Bruce Momjian1999-02-13
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* Apply Win32 patch from Horak Daniel.Bruce Momjian1999-01-17
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* OK, folks, here is the pgindent output.Bruce Momjian1998-09-01
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* o note that now pg_database has a new attribuite "encoding" evenBruce Momjian1998-08-24
| | | | | | | | | | | | | | | | | | | | | | if MULTIBYTE is not enabled. So be sure to run initdb. o these patches are made against the latest source tree (after Bruce's massive patch, I think) BTW, I noticed that after running regression, the oid field of pg_type seems disappeared. regression=> select oid from pg_type; ERROR: attribute 'oid' not found this happens after the constraints test. This occures with/without my patches. strange... o pg_database_mb.h, pg_class_mb.h, pg_attribute_mb.h are no longer used, and shoud be removed. o GetDatabaseInfo() in utils/misc/database.c removed (actually in #ifdef 0). seems nobody uses. t-ishii@sra.co.jp
* Change owner from oid to int4 type.Bruce Momjian1998-08-11
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* From: t-ishii@sra.co.jpMarc G. Fournier1998-07-26
| | | | | | | | | As Bruce mentioned, this is due to the conflict among changes we made. Included patches should fix the problem(I changed all MB to MULTIBYTE). Please let me know if you have further problem. P.S. I did not include pathces to configure and gram.c to save the file size(configure.in and gram.y modified).
* I really hope that I haven't missed anything in this one...Marc G. Fournier1998-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: t-ishii@sra.co.jp Attached are patches to enhance the multi-byte support. (patches are against 7/18 snapshot) * determine encoding at initdb/createdb rather than compile time Now initdb/createdb has an option to specify the encoding. Also, I modified the syntax of CREATE DATABASE to accept encoding option. See README.mb for more details. For this purpose I have added new column "encoding" to pg_database. Also pg_attribute and pg_class are changed to catch up the modification to pg_database. Actually I haved added pg_database_mb.h, pg_attribute_mb.h and pg_class_mb.h. These are used only when MB is enabled. The reason having separate files is I couldn't find a way to use ifdef or whatever in those files. I have to admit it looks ugly. No way. * support for PGCLIENTENCODING when issuing COPY command commands/copy.c modified. * support for SQL92 syntax "SET NAMES" See gram.y. * support for LATIN2-5 * add UNICODE regression test case * new test suite for MB New directory test/mb added. * clean up source files Basic idea is to have MB's own subdirectory for easier maintenance. These are include/mb and backend/utils/mb.
* Fix for hang after postmaster restart. Add new proc_exit andBruce Momjian1998-06-27
| | | | shmem_exit to replace exitpg().
* Remove un-needed braces around single statements.Bruce Momjian1998-06-15
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