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Code Activity
1,455 Commits 1,607 Branches 185 Tags
ce665cf60e76f16e8ca54d268df717cd3c288bf1
Commit Graph

145 Commits

Author SHA1 Message Date
drh
44ce7e20f8 Remove unused variable. Ticket #355. (CVS 1030) 
FossilOrigin-Name: 5228cecdb84a665b96750fc0dc7c81e3f50a3ce8
 2003-06-17 02:57:17 +00:00
drh
7d02cb73ca Fix a bug in UPDATE OR REPLACE that was introduced by check-in (999). 
Also clean up some compiler warnings for VC++. (CVS 1005)

FossilOrigin-Name: af6f2bdf59fb621ff3e1d061e429f01ebd7d0b42
 2003-06-04 16:24:39 +00:00
drh
8bf8dc9208 Fix problems with TEMP indices that lead to corrupt databases. These 
problems were discovered while working on ticket #317.  No sure yet if
that ticket is fixed. (CVS 981)

FossilOrigin-Name: 01398fb78bab7e5c6f439f2b743f26e82118468a
 2003-05-17 17:35:10 +00:00
drh
2e6d11bc07 Add tests to insure VACUUM works in the presence of I/O errors. Fix some 
problems that came to light by these tests. (CVS 935)

FossilOrigin-Name: 8d3e879349fc9523c72cb46111e0058b57ce9341
 2003-04-25 15:37:57 +00:00
drh
f7c5753174 Make VACUUM work even if multiple processes have the database open at once. (CVS 933) 
FossilOrigin-Name: caa960289f3d1f5e8f35a94e9e4321996c211ed2
 2003-04-25 13:22:51 +00:00
drh
fd9903de51 Explicit casts to squelch bogus warnings for vc++. Ticket #194. (CVS 932) 
FossilOrigin-Name: cb808c14bc14e7bd1cfff134ae5206ace451f2df
 2003-04-25 03:13:25 +00:00
drh
144f9eadf6 Remove some unnecessary code and complication from the btree interface. (CVS 909) 
FossilOrigin-Name: 35cc7c7d37d9ca486e7f300efe80a78a7f1064e2
 2003-04-16 01:28:16 +00:00
paul
b0208ccaa3 Support in-memory databases for temp tables (CVS 903) 
FossilOrigin-Name: 96336bffde6c441af197a521ee9e56fdfd7efff8
 2003-04-13 18:26:49 +00:00
drh
73509eee84 Simplify the BTree interface by shortening names. Added two new methods 
for accessing the current filename and for changing the name of the
database file. (CVS 900)

FossilOrigin-Name: 185d8dc8d0c26cef36aeba6992823e5124af4056
 2003-04-06 20:44:45 +00:00
paul
b95a8864c9 Add infrastructure to suport multiple btree implementations (CVS 894) 
FossilOrigin-Name: 79b3aed2a74a67cbad631c4e2e4a43469d80c162
 2003-04-01 21:16:41 +00:00
drh
1dd8c40e8f Detect when a child node of a btree page has zero entries and report that 
as a case of database corruption. (CVS 887)

FossilOrigin-Name: 66c80ae232a78ecb010280ab1aa684cb78b0662f
 2003-03-30 18:41:22 +00:00
drh
001bbcbb8f Modifications to the VDBE to support more than one database file. (CVS 878) 
FossilOrigin-Name: 875da9eed981bfa27b98e95025f9fdbed74b4098
 2003-03-19 03:14:00 +00:00
drh
973b6e333d Added the new FULL option to the SYNCHRONOUS pragma. Still need to test it. (CVS 863) 
FossilOrigin-Name: 792a9e157dd066fcaffd4f5b373010151fb4ca61
 2003-02-12 14:09:42 +00:00
drh
3a84069da3 Additional testing and bug fixing with the non-callback API. Updated the 
C/C++ interface document to describe the non-callback API. (CVS 855)

FossilOrigin-Name: af1e9299468aa70d7d91e7a5445ba391ccc8ff8b
 2003-01-29 22:58:26 +00:00
drh
d62d3d0d24 Add asserts to btree.c that check for the correct size of various typedefs 
and structures.  Ticket #233. (CVS 845)

FossilOrigin-Name: c7e647d011b086a6e57420850f6bc4f28fcb23ee
 2003-01-24 12:14:20 +00:00
drh
8178a75a11 More optimizations. (CVS 813) 
FossilOrigin-Name: 5809132f5bf40bae2331f887e87fe5baecc15c46
 2003-01-05 21:41:40 +00:00
drh
c3b7057705 Parameterize the number of adjacent pages that participate in the balancing 
algorithm in the BTree.  But leave the setting at the current value of 3. (CVS 812)

FossilOrigin-Name: 6c304024bbd21a1886a57ada795531349aa627d7
 2003-01-04 19:44:07 +00:00
drh
bb49aba82a Another optimization to the btree logic. (CVS 811) 
FossilOrigin-Name: 03d20673616cae0dca524fd04557798a98fb7069
 2003-01-04 18:53:27 +00:00
drh
428ae8cb41 Optimizations to the BTree module for a modest speed improvement. (CVS 810) 
FossilOrigin-Name: 39902a70417475225956704a037493515e9b08b9
 2003-01-04 16:48:09 +00:00
drh
8c1238aebd Code optimizations to help the library run faster. (CVS 808) 
FossilOrigin-Name: db745e87dc26cf1a35cdcec18f4b659742e14120
 2003-01-02 14:43:55 +00:00
drh
1a844c380b Fix a bug in the reverse scan logic that comes up when the table being 
scanned is empty.  Add additional tests for the reverse scan. (CVS 797)

FossilOrigin-Name: 0051c87d5e8d07fae09da2eb7b0d8cbd1bbd3c8e
 2002-12-04 22:29:28 +00:00
drh
2dcc9aa2a8 Add the sqliteBtreePrevious() routine to the BTree module API. This is 
in anticipation of implementing reverse order searching of a table. (CVS 794)

FossilOrigin-Name: 0ad1d93879bee0d34b122591c025192a51b8490f
 2002-12-04 13:40:25 +00:00
drh
da47d7748f Change to the pager to avoid opening journal files unnecessarily. This can 
sometimes results in a significant speed improvement. (CVS 791)

FossilOrigin-Name: fa5c042585c601449ede7319d0c5993cd8ba75a4
 2002-12-02 04:25:19 +00:00
drh
f74b8d9b89 Relax the locking requirements on BTree cursors. Any number of read and 
write cursors can be open at the same time now, but a write cannot occur
as long as one or more read cursors are open.

Before this change, one or more read cursors could be open on a table,
or a single write cursor, but not both.  Both policies have the same
desirable effect: they prevent writes to a table while a sequential scan
of that table is underway.  But the new policy is a little less restrictive.
Both policies prevent an UPDATE from occurring inside a SELECT (which is
what we want) but the new policy allows a SELECT to occur inside an
UPDATE. (CVS 739)

FossilOrigin-Name: 8c2a0836980341faa479cfe6c716409e6057367d
 2002-09-01 23:20:45 +00:00
drh
cb48588297 Fix for ticket #135: Remove unused variables from three files. (CVS 719) 
FossilOrigin-Name: 8cf17f2a24ee9bd5d1ea66484922819626c412dd
 2002-08-15 13:50:48 +00:00
drh
74587e5567 Updates prior to release 2.6.3. (CVS 706) 
FossilOrigin-Name: 34c4149eea7a48927e36867f4e25ff7fac40c66e
 2002-08-13 00:01:16 +00:00
drh
0d316a40cc Fix for ticket #9: Add the ability to read little-endian database files 
from a big-endian machine and vice versa. (CVS 704)

FossilOrigin-Name: ce4b943bf68c160445a58ffccfbabbbd30d9829b
 2002-08-11 20:10:47 +00:00
drh
199e3cf1b6 Change the name of variable "near" to "nearby" since MSVC mistakenly belieaves 
that "near" is a keyword. (CVS 685)

FossilOrigin-Name: 9761a2a0fbfd3e98f719a813bcc544950968aef2
 2002-07-18 11:01:47 +00:00
drh
bea00b9a2b In the BTree subsystem, when using pages from the freelist, attempt to select 
pages close to related pages in order to keep data structures near each other
in the database file.  This improves access speed in some circumstances. (CVS 667)

FossilOrigin-Name: fd7e41f0eed80fb1c7e18eb84834ec3cea74a649
 2002-07-08 10:59:50 +00:00
drh
6b30867ff6 Make the BTree balance() routine a little faster by reusing database 
pages locally rather than freeing and reallocating them. (CVS 666)

FossilOrigin-Name: 3c2dea4310af491d6cb09856d4bc5236d6dc44ac
 2002-07-08 02:16:37 +00:00
drh
193a6b4142 More rollback problems: Fix two more errors introduced by checking (410) that 
can cause database corruption after a ROLLBACK.  Also add new tests to make
sure everything is working this time. (CVS 663)

FossilOrigin-Name: f6e24d5ccbcfcf5863ffbd65860dafa2f5663e99
 2002-07-07 16:52:46 +00:00
drh
0de8c11292 Prepare for the 2.5.5 release. (CVS 661) 
FossilOrigin-Name: 00f83c2576f4a9689720d344788f66219c1f6827
 2002-07-06 16:32:14 +00:00
drh
7aa128dbc5 Fix for ticket #76: Fix a database corruption that might occur when 
dropping tables or indices. (CVS 635)

FossilOrigin-Name: 7936b0325024c81ed8d4bab192d7350d045ec999
 2002-06-21 13:09:16 +00:00
drh
5df72a5ad6 Fix for ticket #62: Do not report an SQLITE_READONLY error until the application 
actually tries to write data into a readonly file.  It is OK to start a
transaction on a read-only file, and doing so will get you a read lock.  This
change allows TEMP tables to be read/write even though the main database is
readonly. (CVS 607)

FossilOrigin-Name: 9ef795d1d756a404d2123ebc19df1985b19c9888
 2002-06-06 23:16:05 +00:00
drh
9adf9ac4e4 Remove all tabs from the beginning of source code lines. Replace tabs with 
the appropriate number of spaces. (CVS 565)

FossilOrigin-Name: 690f9a163173c4c7af7e8e92e942cee4184c7974
 2002-05-15 11:44:13 +00:00
drh
cd61c2816f Added the default_cache_size and default_synchronous pragmas. Added additional 
tests for pragmas.  Added a new speedtest script. (CVS 421)

FossilOrigin-Name: 161c0c5f5db66815e4345c9b5f7a600c03a67475
 2002-03-06 22:01:34 +00:00
drh
4b845d7ef4 Change the pager locking mechanism so that we don't have to write page 1 
to the journal and to the database unless it actually changes. (CVS 419)

FossilOrigin-Name: 480eef1a3a4f049bc0d0cbee32dc8a8d138597c6
 2002-03-05 12:41:19 +00:00
drh
4ff6dfa7de More bugs fixed for views. (CVS 416) 
FossilOrigin-Name: 813077623087ffc6cd506f57cf6d1e3d9239f806
 2002-03-03 23:06:00 +00:00
drh
30e58750c1 Pager optimization: do not write or journal free pages. This results in 
a 2x performance gain for large INSERTs and a 5x performance gain for
large DELETEs. (CVS 410)

FossilOrigin-Name: cf1ebcfb741786f84a596c406f4c492f68cbe881
 2002-03-02 20:41:57 +00:00
drh
f9ffac96a7 Change the btree node balancers to sort nodes into accending order. This 
improves insert and delete speed by 25%. (CVS 409)

FossilOrigin-Name: abbb999d4fc3fe142567b6ede5e625e7bf0da714
 2002-03-02 19:00:31 +00:00
drh
77c679c096 Fix a comment. (CVS 384) 
FossilOrigin-Name: 953928537c350e6c9df157553114c6d9d44712d5
 2002-02-19 22:43:58 +00:00
drh
9562b55115 Optimize simple min() and max() queries. (CVS 382) 
FossilOrigin-Name: cc5abfe392bdb8c3ed00e0610bc2b41851bfc9d7
 2002-02-19 15:00:07 +00:00
drh
aaab5725db Change the name of the sanity_check PRAGMA to "integrity_check" and make 
it available on all compiles. (CVS 381)

FossilOrigin-Name: c6e9048e66c8d8e2d5f6c62aa724eef3e9d9f572
 2002-02-19 13:39:21 +00:00
drh
8c87e6e0ff Reenable testing code even if NDEBUG is defined. (CVS 367) 
FossilOrigin-Name: 0090c279d83ee355fbac8a484401d29bfa50b0dc
 2002-02-03 19:15:02 +00:00
drh
24e97df9c7 Fix a serious bug in INSERT when the source is a SELECT. (CVS 366) 
FossilOrigin-Name: 20ea737536700b016385c70105a2af8b2bffce2b
 2002-02-03 19:06:02 +00:00
drh
1bffb9c84f Put in PRAGMA SANITY_CHECK in place of VACUUM. (CVS 365) 
FossilOrigin-Name: 7c65029e5bf26eb640aef529a7421cd0d6ffd1a9
 2002-02-03 17:37:36 +00:00
drh
1dd397f091 The VACUUM command now does a database sanity check. (CVS 364) 
FossilOrigin-Name: 95d1f8389dd5e168bdf0290169662296b6a0f6d9
 2002-02-03 03:34:07 +00:00
drh
0d65dc0e90 Five-algorithm conflict resolution appears to be working. (CVS 363) 
FossilOrigin-Name: 0115518f8e4591123582e3d2bb67282111ebcf60
 2002-02-03 00:56:09 +00:00
drh
663fc63a77 Get the ABORT conflict resolution algorithm working. (CVS 362) 
FossilOrigin-Name: 9be4d4c6f12056782966396dca0b8e2d384d0cf2
 2002-02-02 18:49:19 +00:00
drh
c6b52df32d An attempt to delete a single row using a WHERE clause that specifies 
the rowid would result in an error if the rowid did not exist.  This
problem has been resolved. (CVS 338)

FossilOrigin-Name: 011be9a9d2632d261489005d97c69b0a0bc5a108
 2002-01-04 03:09:29 +00:00