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2667be5e3fa58c7724efeccfcad22efddcc77ff0
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59 Commits

Author SHA1 Message Date
dan
b978002743 Tests for (and changes to) the code to switch between WAL and rollback modes. 
FossilOrigin-Name: 9f4f933f2c6596064fcfc7fb5add87e8c5b57448
 2010-04-21 18:37:57 +00:00
drh
25a80ad0b1 The btree layer now tracks when a database is empty at the start of a 
transaction and rolls back to that state.

FossilOrigin-Name: 01ef6c1944507c188a83a434ff00e98ad767f744
 2010-03-29 21:13:12 +00:00
drh
dd3cd977cc Experimental changes that cause SQLite to use bytes 28..31 of the database 
header to determine the database size, rather than using the actual database
size.  This allows database space to be preallocated.

FossilOrigin-Name: b844ac6fcb72595a71e5c5283ec461309a87ba79
 2010-03-27 17:12:36 +00:00
drh
5b47efa662 All the secure-delete setting to be changed at run-time using a pragma. 
The SQLITE_SECURE_DELETE compile-time option determines the default setting.

FossilOrigin-Name: f72f8a870a0fc98a9f2b564ffafe7946bbce506e
 2010-02-12 18:18:39 +00:00
drh
c81c11f62c Remove the obsolete "$Id:$" RCS identifier strings from the source code. 
FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
 2009-11-10 01:30:52 +00:00
drh
5bbe548195 Minor updates and corrections to comments in btreeInt.h. No changes to code. 
FossilOrigin-Name: ad949fa1acb4546fe4f2a448025579cc374dd8dd
 2009-10-27 18:06:10 +00:00
drh
ed1f8787aa Fix comment typos in btreeInt.h. 
FossilOrigin-Name: 550566a75fc79e3662431ba493af853b522d8850
 2009-10-16 13:23:33 +00:00
drh
4c301aaca8 Simplifications to btree.c in support of structural testing. Renamed the 
"skip" field of the BtCursor object to "skipNext" to make it easier to
search for places where it is used. (CVS 6896)

FossilOrigin-Name: d3897235d77e48ad09f7edb0a7641458afa0a282
 2009-07-15 17:25:45 +00:00
danielk1977
3054866c7c Restore (btree_set_cache_size) to test3.c. This is used on unix for the tcl "crash tests". Make some functions no longer used outside of btree.c static. (CVS 6869) 
FossilOrigin-Name: 1d96ce8c76e007ca29e7971a6c72b6387fe0fb93
 2009-07-09 05:07:37 +00:00
danielk1977
602b466e99 Cause opening a transaction on a sharable b-tree module automatically obtain a read-lock on page 1. This means there is no way for sqlite3BtreeGetMeta() to fail. (CVS 6836) 
FossilOrigin-Name: e3c055f167f895ae45858de9d9d8a264df2f36b6
 2009-07-02 07:47:33 +00:00
danielk1977
13bd99fa43 Simplify things by rolling the functionality of balance_shallower() into balance_nonroot(). (CVS 6808) 
FossilOrigin-Name: 11750c6aee6aa05b2627ad9dfb2fbcdfe8944168
 2009-06-24 05:40:34 +00:00
drh
27731d7c73 Make sure sqlite3BtreeCreateTable() returns an error code if the largest 
rootpage field is invalid in auto_vacuum mode.  Update file-format comments
to describe all of the "meta" values. (CVS 6797)

FossilOrigin-Name: bda38f5e86db45234c2dbb0f8d1a81f6ff6d04e4
 2009-06-22 12:05:10 +00:00
drh
0d588bbc38 Suppress some -Wextra compiler warnings from GCC. (CVS 6774) 
FossilOrigin-Name: 59ec937ce226bbf6c48c5e0466d3bab48873c9ea
 2009-06-17 13:09:38 +00:00
danielk1977
be2296501c Make sure struct WhereClause is aligned on an 8-byte boundary. Fix for #3613, #3736. (CVS 6364) 
FossilOrigin-Name: 093a0cf4adc8613f744c2ccdef61f0b30a46818c
 2009-03-20 14:18:51 +00:00
danielk1977
bd43455c38 Fix some cases where executing SQL from within a user-function callback could cause problems related to statement-transactions. (CVS 6355) 
FossilOrigin-Name: a60f4191791dd7bb49d5c95b350a9924845b59a8
 2009-03-18 10:33:00 +00:00
drh
7f75122149 Move the rowid cache out of VdbeCursor and into BtCursor. When multiple 
BtCursors are open on the same table, set their rowid cache all at the
same time.  Ticket #3731. (CVS 6354)

FossilOrigin-Name: 189785832a7dc9f4a0a2113d850b92b987e0f9bf
 2009-03-17 22:33:00 +00:00
danielk1977
404ca07578 Add the sqlite3_unlock_notify() API. (CVS 6348) 
FossilOrigin-Name: b649a6cc5bfefddd6a04b1183647d2923e0a0daa
 2009-03-16 13:19:36 +00:00
danielk1977
0410302e58 Commit first version of the 'backup' feature. (CVS 6241) 
FossilOrigin-Name: 663479b417fc06ba1790a544f28694f8797cee57
 2009-02-03 16:51:24 +00:00
danielk1977
bea2a94850 Big change to make pager.c easier to follow. Unused variables removed, comments improved, etc. (CVS 6197) 
FossilOrigin-Name: 12f7346c13c180ed73d7a2e3b590be457360254a
 2009-01-20 17:06:27 +00:00
danielk1977
45d6882fd9 Revert (6187). (CVS 6188) 
FossilOrigin-Name: a353c1ab376b159c4d12532412365318cdbdcc60
 2009-01-16 16:23:38 +00:00
danielk1977
443c0597fe This commit is an error. Reverted by (6188). (CVS 6187) 
FossilOrigin-Name: aa67fd0cdb4f53a0c6e15c001d37554d15006718
 2009-01-16 15:21:05 +00:00
danielk1977
3460d19c85 Fix a problem with savepoint and incremental-vacuum. (CVS 6066) 
FossilOrigin-Name: 08352f9ea9d2a1759320efc46e418079000855cb
 2008-12-27 15:23:13 +00:00
drh
f49661a4eb Add explicit casts to silence nuisance warnings from VC++. (CVS 6004) 
FossilOrigin-Name: da1cbfa766f7f379c01f4ac9c1210462d8d7c590
 2008-12-10 16:45:50 +00:00
danielk1977
1ceedd3736 Simplify the way the pager layer invokes the busy-handler callback. (CVS 5922) 
FossilOrigin-Name: 7bd1ac189906d87ed360875551d50147dd2186f6
 2008-11-19 10:22:33 +00:00
danielk1977
89d4004f03 Changes to btree.c to avoid the unsigned/signed comparison warnings. (CVS 5911) 
FossilOrigin-Name: 24469dbace433ca89e22274f741f382052c5d17d
 2008-11-17 14:20:56 +00:00
drh
f94a173a95 Add some testcase() and assert() macros to btree.c to aid with testing 
recent changes. (CVS 5757)

FossilOrigin-Name: fb461b78dfc2501fafa8bce03da5487fdfdff959
 2008-09-30 17:18:17 +00:00
danielk1977
bf93c56737 Remove the MemPage.idxShift variable. It is no longer required. (CVS 5750) 
FossilOrigin-Name: 7354abd03be756b1d7d0a3d5b8958f5c0c985ff5
 2008-09-29 15:53:25 +00:00
danielk1977
71d5d2cd49 Instead of storing a pointer to the parent page in the MemPage structure, have each B-Tree cursor keep track of the ancestry of the current page. (CVS 5747) 
FossilOrigin-Name: 40425e93421286cca1965d7a5769084526210c7a
 2008-09-29 11:49:47 +00:00
danielk1977
eaa06f6970 Avoid parsing the structure of b-tree pages (in sqlite3BtreeInitPage) more than is necessary. (CVS 5720) 
FossilOrigin-Name: 6b998f3066754e219c266501327e5578c9406b63
 2008-09-18 17:34:44 +00:00
drh
c890fec362 Bring test coverage up to 99%. (CVS 5522) 
FossilOrigin-Name: 2cd6bae80984126023bcf479e5f3db5eaa5c4134
 2008-08-01 20:10:08 +00:00
danielk1977
8c666b1666 Performance improvement: reduce the number of calls to ptrmapPageno() made by ptrmapPut() and ptrmapGet(). (CVS 5437) 
FossilOrigin-Name: d807fb271340901bbf3e06de23d91132422d1408
 2008-07-18 09:34:57 +00:00
drh
1688c86f5a Omit the check for cell-pointer consistency in sqlite3BtreeInitPage() 
for a 2.5% performance gain. (CVS 5433)

FossilOrigin-Name: b88087e69dffb743c5b552703e14a030349cf65b
 2008-07-18 02:44:17 +00:00
drh
44845221ed Simplify the b-tree logic by taking advantage of the fact that all b-trees 
are either intkey+leafdata or zerodata. (CVS 5431)

FossilOrigin-Name: 29d3bfd7c9a68078385354394052612bf812859b
 2008-07-17 18:39:57 +00:00
drh
e8f52c5089 Remove leftover debugging commands (breakpoint and btree_breakpoint) from 
test scripts. (CVS 5400)

FossilOrigin-Name: dcb160249fa2d592ad09b8b0052102dc44a93511
 2008-07-12 14:52:20 +00:00
drh
a34605859d Detect and handles the case where a row is modified or deleted while it 
is being read during SELECT processing. (CVS 5399)

FossilOrigin-Name: c80a5d09935c60a2a50bc262c172a94073355f0d
 2008-07-11 21:02:53 +00:00
drh
93a960a0a8 Remove unused code. Test coverage enhancements. Modify the algorithm used 
to select column names for VIEWs of joins so that the constructed column
names omits the underlying table names. (CVS 5386)

FossilOrigin-Name: 636cd723296a8b1709011fdd99b236ffddf3f1b0
 2008-07-10 00:32:42 +00:00
drh
f089aa459e Completely rework the sqlite3SetString() primitive so that it honors the 
SQLITE_LIMIT_LENGTH and avoids the use of strlen(). (CVS 5374)

FossilOrigin-Name: 8ed04b1e26a55306e4baf3e93fb084514134d603
 2008-07-08 19:34:06 +00:00
drh
e5ae5735c0 Continuing work on the new memory allocation subsystem. 
Added routines for temporary memory allocation.  Right the btree
balance mechanism to only do one temporary allocation at a time. (CVS 5220)

FossilOrigin-Name: 65fe7b62cfe7d11cd667681a64c96fe7b2fe5685
 2008-06-15 02:51:47 +00:00
shane
3f8d5cfcad Consolidated varint macro usage from btreeInt.h, vdbe.c, and vdbeaux.c into sqliteInt.h and made their use consistent. Slight improvements to varint32 macros. (CVS 5045) 
FossilOrigin-Name: 0d04ccd97841bbbda564cc6ae5da057ee3888fa3
 2008-04-24 19:15:09 +00:00
drh
a2c20e433b Make the sqlite3BtreeMoveto routine a no-op if the cursor is already pointing 
at the cell we are trying to move to. (CVS 4938)

FossilOrigin-Name: 9b567ab61e7542141b7bc9c3c053c2d1180da92d
 2008-03-29 16:01:04 +00:00
danielk1977
52ae7246c6 Have each {quote: BtShared} structure hang on to a buffer of just under page-size bytes for temporary use. This reduces the number of calls to malloc(). (CVS 4914) 
FossilOrigin-Name: fe1bc0f3b7cd87cd65f7d03b91095b59788a6f8d
 2008-03-25 14:24:56 +00:00
drh
1e968a0cbf Removed the direct btree tests - part of the ongoing effort to test by 
calling only public interfaces.  Modify the sqlite3VdbeRecordCompare
interface to used a pre-parsed second key - resulting in a 13%
performance improvement on speed1p.test. (CVS 4911)

FossilOrigin-Name: 0e1d84f2f456e7680bb667266745b629ddf3605f
 2008-03-25 00:22:21 +00:00
mlcreech
3a00f907a9 Various renames & cleanups to limit exported symbols on amalgamation build (CVS 4819) 
FossilOrigin-Name: 9c6694bb61a8ecdbfb2d05e5e05a8cc97b792240
 2008-03-04 17:45:01 +00:00
drh
a9121e4c8e Use 16-bit integers for indexing within a page in btree. Tighter 
bounds on the maximum number of cells within one page. (CVS 4796)

FossilOrigin-Name: 8fdbe4abab4e9c292111579b03471f68c1e855fb
 2008-02-19 14:59:35 +00:00
danielk1977
641b0f4ffa Fix for #2854. "BEGIN EXCLUSIVE" excludes other shared cache users from using the database. (CVS 4642) 
FossilOrigin-Name: 2e59b1d07ee422bd799b5b7aeea44ebc998d9481
 2007-12-21 04:47:25 +00:00
drh
e5fe690d75 In shared-cache mode, make sure the busy hander invoked is the 
busy handler associated with the database connection that caused
the lock contention in the first place. (CVS 4598)

FossilOrigin-Name: c9eb65912f61ce0a6b66fe253652a1827e46b12a
 2007-12-07 18:55:28 +00:00
drh
fb98264aab Fix for the sqlite3AbortOtherActiveVdbes() problem. (CVS 4328) 
FossilOrigin-Name: e40d40a5d41c491bef852a92e5846b273b206909
 2007-08-30 01:19:59 +00:00
drh
b1ab8ea7f3 More locking fixes. Now makes it all the way through quick.test. There 
are errors but no assertion faults.  Progress. (CVS 4319)

FossilOrigin-Name: 844d40b8379d3374130e2d94f6e32c2cda34e0ca
 2007-08-29 00:33:07 +00:00
drh
d0679edc7a Clean up the locking in the btree logic. (CVS 4316) 
FossilOrigin-Name: 967ab229af462a8ae663090ea36b4cc10e351653
 2007-08-28 22:24:34 +00:00
drh
97c8ec325d Bring the amalgamation builder up to date with the latest changes. 
Remove some vestigial code. (CVS 4303)

FossilOrigin-Name: 0ae30e5c76d9094307ea086a9993a953631ab9da
 2007-08-27 21:49:34 +00:00