165 Commits (1fe11fad543fcaaf9ae7826f1234530a9d59c1b0)

Author	SHA1	Message	Date
Bruce Momjian	5c25d60244	Add: ... * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.	26 years ago
Peter Eisentraut	fa5400c0a4	added ALTER TABLE DROP COLUMN, early version	26 years ago
Hiroshi Inoue	0f2e7948e2	Improve cache invalidation handling. Eespecially ...	26 years ago
Jan Wieck	e2aef49694	Added empty TOASTER files and corrected some minor glitches ... in regression tests. Jan	26 years ago
Jan Wieck	397e9b32a3	Some changes to prepare for LONG attributes. ... Jan	26 years ago
Bruce Momjian	bb10bf319e	Rename heap_replace to heap_update.	26 years ago
Bruce Momjian	6f9ff92cc0	Tid access method feature from Hiroshi Inoue, Inoue@tpf.co.jp	26 years ago
Bruce Momjian	86ef36c907	New NameStr macro to convert Name to Str. No need for var.data anymore. ... Fewer calls to nameout. Better use of RelationGetRelationName.	27 years ago
Tom Lane	4ce4d7f7d3	Rearrange heap_beginscan to eliminate extra call on ... mdnblocks. Bad enough it does an lseek, but to do it twice for no reason...	27 years ago
Hiroshi Inoue	05d13cad28	The 1st step to implement new type of scan,TidScan. ... Now WHERE restriction on ctid is allowed though it is sequentially scanned.	27 years ago
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.	27 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.	27 years ago
Bruce Momjian	faf7d78174	Install new alignment code to use MAXALIGN rather than DOUBLEALIGN where ... approproate.	27 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	a9591ce66a	Change #include's to use <> and "" as appropriate.	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
Bruce Momjian	0cf1b79528	Cleanup of /include #include's, for 6.6 only.	27 years ago
Bruce Momjian	8aa780bdd3	cleanup	27 years ago
Bruce Momjian	d20abcd8c5	typo fix.	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
Bruce Momjian	07842084fe	pgindent run over code.	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
Bruce Momjian	6724a50787	Change my-function-name-- to my_function_name, and optimizer renames.	27 years ago
Vadim B. Mikheev	e3a1ab764e	READ COMMITTED isolevel is implemented and is default now.	27 years ago
Vadim B. Mikheev	3f7fbf85dc	Initial MVCC code. ... New code for locking buffer' context.	27 years ago
Vadim B. Mikheev	6beba218d7	New HeapTuple structure/interface.	27 years ago
Bruce Momjian	beac8c1c46	Fix for vacuum and cache use. Fix for BSDI 4.0.	28 years ago
Bruce Momjian	173c555948	Make functions static or ifdef NOT_USED. Prevent pg_version creation.	28 years ago
Bruce Momjian	fa1a8d6a97	OK, folks, here is the pgindent output.	28 years ago
Bruce Momjian	af74855a60	Renaming cleanup, no pgindent yet.	28 years ago
Bruce Momjian	4a70002149	fix for index problem.	28 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;	28 years ago
Vadim B. Mikheev	be8300b18f	Use Snapshot in heap access methods.	28 years ago
Bruce Momjian	0da6358f37	Cleanup use of 16 that should be NAMEDATALEN.	28 years ago
Bruce Momjian	fce7556d33	Change error message and remove non-functional update message, from ... Vadim.	28 years ago
Bruce Momjian	6bd323c6b3	Remove un-needed braces around single statements.	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
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	0889dcd6f7	Remove archive stuff.	28 years ago
Bruce Momjian	e9e1ff226f	Remove all time travel stuff. Small parser cleanup.	28 years ago
Vadim B. Mikheev	32cd09ac6d	Good Bye, Time Travel!	29 years ago
Bruce Momjian	8cb4154492	Inline frequently called functions.	29 years ago
Bruce Momjian	59f6a57e59	Used modified version of indent that understands over 100 typedefs.	29 years ago
Bruce Momjian	075cede748	Add typdefs to pgindent run.	29 years ago
Bruce Momjian	319dbfa736	Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting.	29 years ago
Bruce Momjian	1ccd423235	Massive commit to run PGINDENT on all *.c and *.h files.	29 years ago