563 Commits (ff89e182d42048380dba32fee1b491893c7b4bec)

Author	SHA1	Message	Date
Tom Lane	e812458b27	Several changes here, not very related but touching some of the same files. ... * 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.	26 years ago
Tom Lane	bd272cace6	Mega-commit to make heap_open/heap_openr/heap_close take an ... additional argument specifying the kind of lock to acquire/release (or 'NoLock' to do no lock processing). Ensure that all relations are locked with some appropriate lock level before being examined --- this ensures that relevant shared-inval messages have been processed and should prevent problems caused by concurrent VACUUM. Fix several bugs having to do with mismatched increment/decrement of relation ref count and mismatched heap_open/close (which amounts to the same thing). A bogus ref count on a relation doesn't matter much *unless* a SI Inval message happens to arrive at the wrong time, which is probably why we got away with this sloppiness for so long. Repair missing grab of AccessExclusiveLock in DROP TABLE, ALTER/RENAME TABLE, etc, as noted by Hiroshi. Recommend 'make clean all' after pulling this update; I modified the Relation struct layout slightly. Will post further discussion to pghackers list shortly.	26 years ago
Bruce Momjian	3406901a29	Move some system includes into c.h, and remove duplicates.	27 years ago
Bruce Momjian	a71802e12e	Final cleanup.	27 years ago
Bruce Momjian	9b645d481c	Update #include cleanups	27 years ago
Bruce Momjian	2e6b1e63a3	Remove unused #includes in *.c files.	27 years ago
Bruce Momjian	4b2c2850bf	Clean up #include in /include directory. Add scripts for checking includes.	27 years ago
Vadim B. Mikheev	49f68a8584	Avoid disk writes for read-only transactions.	27 years ago
Vadim B. Mikheev	3b79cc0c55	Removed bad Assert(!buf->ri_lock) when unlocking exclusively ... locked buffer.	27 years ago
Vadim B. Mikheev	78f7ccc982	1. Fix for elog(ERROR, "EvalPlanQual: t_xmin is uncommitted ?!") ... and possibly for other cases too: DO NOT cache status of transaction in unknown state (i.e. non-committed and non-aborted ones) Example: T1 reads row updated/inserted by running T2 and cache T2 status. T2 commits. Now T1 reads a row updated by T2 and with HEAP_XMAX_COMMITTED in t_infomask (so cached T2 status is not changed). Now T1 EvalPlanQual gets updated row version without HEAP_XMIN_COMMITTED -> TransactionIdDidCommit(t_xmin) and TransactionIdDidAbort(t_xmin) return FALSE and T2 decides that t_xmin is not committed and gets ERROR above. It's too late to find more smart way to handle such cases and so I just changed xact status caching and got rid TransactionIdFlushCache() from code. Changed: transam.c, xact.c, lmgr.c and transam.h - last three just because of TransactionIdFlushCache() is removed. 2. heapam.c: T1 marked a row for update. T2 waits for T1 commit/abort. T1 commits. T3 updates the row before T2 locks row page. Now T2 sees that new row t_xmax is different from xact id (T1) T2 was waiting for. Old code did Assert here. New one goes to HeapTupleSatisfiesUpdate. Obvious changes too. 3. Added Assert to vacuum.c 4. bufmgr.c: break Assert(buf->r_locks == 0 && !buf->ri_lock) into two Asserts.	27 years ago
Tom Lane	dfefad7db0	Missing semicolons in non-HAS_TEST_AND_SET code paths :-(	27 years ago
Bruce Momjian	07842084fe	pgindent run over code.	27 years ago
Bruce Momjian	4853495e03	Change error messages to oids come out as %u and not %d. Change has no ... real affect now.	27 years ago
Vadim B. Mikheev	fdf6be80f9	1. Vacuum is updated for MVCC. ... 2. Much faster btree tuples deletion in the case when first on page index tuple is deleted (no movement to the left page(s)). 3. Remember blkno of new root page in BTPageOpaque of left/right siblings when root page is splitted.	27 years ago
Marc G. Fournier	8c3e8a8a0e	From: Tatsuo Ishii <t-ishii@sra.co.jp> ...	27 years ago
Bruce Momjian	6724a50787	Change my-function-name-- to my_function_name, and optimizer renames.	27 years ago
Bruce Momjian	9322950aa4	Cleanup of source files where 'return' or 'var =' is alone on a line.	27 years ago
Bruce Momjian	4390b0bfbe	Add TEMP tables/indexes. Add COPY pfree(). Other cleanups.	27 years ago
Vadim B. Mikheev	3f7fbf85dc	Initial MVCC code. ... New code for locking buffer' context.	27 years ago
Bruce Momjian	173c555948	Make functions static or ifdef NOT_USED. Prevent pg_version creation.	27 years ago
Bruce Momjian	fa1a8d6a97	OK, folks, here is the pgindent output.	27 years ago
Bruce Momjian	af74855a60	Renaming cleanup, no pgindent yet.	27 years ago
Bruce Momjian	7971539020	heap_fetch requires buffer pointer, must be released; heap_getnext ... no longer returns buffer pointer, can be gotten from scan; descriptor; bootstrap can create multi-key indexes; pg_procname index now is multi-key index; oidint2, oidint4, oidname are gone (must be removed from regression tests); use System Cache rather than sequential scan in many places; heap_modifytuple no longer takes buffer parameter; remove unused buffer parameter in a few other functions; oid8 is not index-able; remove some use of single-character variable names; cleanup Buffer variables usage and scan descriptor looping; cleaned up allocation and freeing of tuples; 18k lines of diff;	27 years ago
Vadim B. Mikheev	0d78e8c112	Lmgr cleanup, new locking modes for LLL.	28 years ago
Bruce Momjian	5aea4062d6	Inline function, rename libpq variablees, change lrel to lockrel.	28 years ago
Bruce Momjian	6bd323c6b3	Remove un-needed braces around single statements.	28 years ago
Bruce Momjian	4cbfeef912	Inline some small functions called for every row.	28 years ago
Bruce Momjian	4b6fcc4459	Remove GetDatabaseName/Path and use globals. Make consts later.	28 years ago
Bruce Momjian	a32450a585	pgindent run before 6.3 release, with Thomas' requested changes.	28 years ago
Bruce Momjian	24cab6bd0d	Goodbye register keyword. Compiler knows better.	28 years ago
Marc G. Fournier	4e9dd95296	From: Peter T Mount <patches@maidast.demon.co.uk> ... [This is a repost - it supercedes the previous one. It fixes the patch so it doesn't bread aix port, plus there's a file missing out of the original post because difforig doesn't pick up new files. It's now attached. peter] This patch brings the JDBC driver up to the current protocol spec. Basically, the backend now tells the driver what authentication scheme to use. The patch also fixes a performance problem with large objects. In the buffer manager, each fastpath call was sending multiple Notifications to the backend (sometimes more data in the form of notifications were being sent than blob data!).	28 years ago
Bruce Momjian	c16ebb0f67	getpid/pid cleanup	28 years ago
Bruce Momjian	679d39b9c8	Goodbye ABORT. Hello ERROR for all errors.	28 years ago
Bruce Momjian	0d9fc5afd6	Change elog(WARN) to elog(ERROR) and elog(ABORT).	28 years ago
Bruce Momjian	3fa2bb316c	Remove archive stuff.	28 years ago
Vadim B. Mikheev	eca199d7b0	Debug stuff added to BlowawayRelationBuffers().	28 years ago
Vadim B. Mikheev	14f81d8d34	Decrement relation reference count incremented in ... RelationIdCacheGetRelation() to flush relations from cache in commit time.	28 years ago
Vadim B. Mikheev	5fb82eb4c7	Blowaway relation buffers from buffer pool before truncation: ... + BlowawayRelationBuffers(relation, blocknumber)	28 years ago
Bruce Momjian	3f365ba0fc	Inline memset() as MemSet().	28 years ago
Bruce Momjian	8cb4154492	Inline frequently called functions.	28 years ago
Bruce Momjian	59f6a57e59	Used modified version of indent that understands over 100 typedefs.	28 years ago
Bruce Momjian	075cede748	Add typdefs to pgindent run.	28 years ago
Bruce Momjian	319dbfa736	Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting.	28 years ago
Bruce Momjian	1ccd423235	Massive commit to run PGINDENT on all *.c and *.h files.	28 years ago
Bruce Momjian	1d8bbfd2e7	Make functions static where possible, enclose unused functions in #ifdef NOT_USED.	28 years ago
Bruce Momjian	b99c63cfc0	Now that names are null terminated, no need to do all that NAMEDATALEN stuff.	28 years ago
Bruce Momjian	022903f22e	Reduce open() calls. Replace fopen() calls with calls to fd.c functions.	28 years ago
Bruce Momjian	ea5b5357cd	Remove more (void) and fix -Wall warnings.	28 years ago
Bruce Momjian	79e78f0b80	Added SCO support, from Daniel Harris.	29 years ago
Bruce Momjian	3ac9d2fff3	Various compile errors concerning overflow due to shifts, unsigned, and bad prototypes, from Solaris, from Diab Jerius	29 years ago