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Author SHA1 Message Date
drh
8dc8247eab Fix Lemon so that it actually works with -DYYSTACKDEPTH=0. 
FossilOrigin-Name: a9be4c2d56d08fea2cd1aab20b19092a45ef7620
 2016-05-27 04:10:47 +00:00
drh
baf254aef9 Fix the Lemon-generated parser so that it compiles with -DYYSTACKDEPTH=0. 
It does compile now, but there are subtle issues still.

FossilOrigin-Name: 28d439f816d2fa5263e1c4ddecf3bf1ac2dd6549
 2016-05-27 01:07:18 +00:00
drh
eeb9565a3e Add a new OP_SeekRowid opcode, that combines the functions of OP_MustBeInt 
and OP_NotExists.  This makes the code slightly smaller and faster.

FossilOrigin-Name: ffe80a1bfa014943a614fc6993c1749b9bfec4c1
 2016-05-26 20:56:38 +00:00
drh
ce3c5011d9 Add the libvers.c tool in the tool/ subdirectory. 
FossilOrigin-Name: 2a41f098b2f0523b3d7e6eba6ae91cc0d30752df
 2016-05-25 18:53:39 +00:00
drh
756b41ebd4 Enhance Lemon and the parser template so that it can once again build parsers 
that have no unreachable branches.

FossilOrigin-Name: 41fd46e2962ba9a1e1f6867567499d1f6f5b8372
 2016-05-24 18:55:08 +00:00
drh
f34a25a23b Minor change to the walcrash4.test module so that it works when 
SQLITE_DEFAULT_WAL_SYNCHRONOUS is set to something other than 2.

FossilOrigin-Name: 61e239bc4310eff172e1e50d51522ecc75dd997e
 2016-05-24 18:50:41 +00:00
dan
fe912510ea Fix an obscure problem with transactions written in "PRAGMA synchronous=full" mode on systems that do not support POWERSAFE_OVERWRITE causing an xSync() call to be omitted if the last frame written by a transaction is aligned to a sector boundary. This means that if a power failure or OS crash occurs very soon after such a transaction is committed, it may be lost following system recovery. 
FossilOrigin-Name: 37de3eab67f12ae1ce5bc8d5e541c64fc6b1fd80
 2016-05-24 16:20:51 +00:00
drh
abecc0b883 Improvements to the initialization of the push-down automoton for the 
Lemon-generated parser.  Smaller and faster.

FossilOrigin-Name: 3b28b68e232060f8b2fe2fe6fa478280da2006ff
 2016-05-24 00:40:54 +00:00
drh
118ab65859 Use a pointer to the top of the stack rather than an index into the stack 
in the Lemon-generated parser template, for about 6.6% parser performance gain.

FossilOrigin-Name: 3c2a770549d5bb65fcd6cc684e0a0ae6d641ac68
 2016-05-23 21:56:24 +00:00
drh
605123a277 Avoid a minor error message when running RTREE without an sqlite_stat1 table. 
FossilOrigin-Name: 276e92f5b4c1ee49eabb738b24d73d7af90fb13c
 2016-05-23 19:02:58 +00:00
drh
f1e2c8e1ff Fix the rtreeG.test test case. 
FossilOrigin-Name: 9589e9377118efc356c73ea1aab2d7e6c2f7fc36
 2016-05-23 18:27:07 +00:00
drh
e62c2fe179 Fix RTREE so that it does not run queries against the sqlite_stat1 if that 
table does not exist.

FossilOrigin-Name: 48526a2fe5373e3d19e8b813cc8a342d6b7c9c3d
 2016-05-23 18:12:04 +00:00
drh
daa14559d2 Remove an extra "finish_test" from the end of rtreeC.test. 
FossilOrigin-Name: bfbb6dd84b5e1335e1eae857a03fa33a71fd67a5
 2016-05-23 18:06:51 +00:00
dan
5782bc27fa Improve the error messages generated by the rtree module when a constraint fails. 
FossilOrigin-Name: 3ad2531efb64b7c53b777ddf3681203217052b32
 2016-05-23 16:16:13 +00:00
drh
c173ad8011 Lemon enhancement: avoid unnecessary reduce actions that convert one 
non-terminal into another but have no side effects.

FossilOrigin-Name: a86e782ad1aa6f5a8b2c54f9dcf0fa61960843f3
 2016-05-23 16:15:02 +00:00
drh
711c9810dc Fix comment typos and improve clarity of presention in Lemon. The output 
should be identical.

FossilOrigin-Name: b91a5b8297756289d45c8fce0d3399c253517eb0
 2016-05-23 14:24:31 +00:00
drh
6831474341 Update the configure script with additional hints on the location of 
tclConfig.sh, hints needed by the latest versions of Xcode.

FossilOrigin-Name: 90411a28168f6dacf08242a25bed7d6269041417
 2016-05-23 00:10:58 +00:00
drh
dfc2daa7c3 More tweaks to improve the performance of the insert logic, slightly. 
FossilOrigin-Name: dec1307581216e01ad508ffe4455b957e3356654
 2016-05-21 23:25:29 +00:00
drh
8eeb4463d9 Simplify the sqlite3BtreeInsert() interface by gathering the five arguments 
describing the content to be inserted into the new BtreePayload structure, and
thus reducing the number of parameters from eight to four.

FossilOrigin-Name: 55f348cdd24c7812ea4b63345514764b69f64dc8
 2016-05-21 20:03:42 +00:00
drh
16e2b9694a Remove some unused legacy code from the btree insert logic. 
FossilOrigin-Name: 2ce1166717ac3c0cec37b2f6d70d8359fbaefc71
 2016-05-21 19:10:21 +00:00
drh
09a4e92c6d Yet another minor size reduction and performance increase in the b-tree 
insert logic.

FossilOrigin-Name: 1dbaf7a119edc5150a5d4be1b72f652a574e5bc5
 2016-05-21 12:29:04 +00:00
drh
cb89f4aba8 Small size reduction and performance increase in the sqlite3BtreeInsert() 
logic.

FossilOrigin-Name: 656aa1ecf5129ae43c56a990e95038b5d8cbdcee
 2016-05-21 11:23:26 +00:00
drh
ed90a4676e Add the shell-script used for routine performance testing. 
FossilOrigin-Name: 8e366f18f5bbd594390e7b091083e99639de324e
 2016-05-21 00:45:54 +00:00
drh
860a95fd01 Add a simple TCL script for summing cachegrind information for each VDBE 
opcdoe.

FossilOrigin-Name: 96cf821b6a69e2e8df33271b7bb674bd12a1ef7b
 2016-05-20 23:51:14 +00:00
drh
170c276623 Another optimization on the OP_Column opcode. 
FossilOrigin-Name: 1765672c2599eb03d39c52cd2dc32ea1e5ee069e
 2016-05-20 21:40:11 +00:00
mistachkin
2380f3f1d0 Fix typo in comment. 
FossilOrigin-Name: 9db8f2147339ba519c4ec32e34068e9f4a25e099
 2016-05-20 20:58:30 +00:00
drh
a1851efc5d Slight performance improvement in the OP_Column opcode. 
FossilOrigin-Name: 5c157474391f90f24e8867c77fbc6564c7955ecc
 2016-05-20 19:51:28 +00:00
drh
d20b2a4109 Remove the sqlite3PagerClearCache() routine, which does not accomplish anything 
useful.

FossilOrigin-Name: f250166bb3c1b0c58e703b334825cf6210758fda
 2016-05-20 18:09:01 +00:00
drh
f431a87c7c Performance optimization and size reduction on the freeP4() routine. 
FossilOrigin-Name: 4dc56e8684e0c74fb311c7f0ef1c367da8c7bf70
 2016-05-20 15:53:47 +00:00
drh
c0a195b885 Increase the version number to 3.14.0 since we are already making significant 
code changes.

FossilOrigin-Name: 1a0d05765fa2e69ccd4c98782cf9f5c5b2897719
 2016-05-20 15:24:14 +00:00
drh
01c736db40 Use sqlite3VdbeAddOp0() to code OP_Expire, to save a few bytes. 
FossilOrigin-Name: 3d55d24dcb27f07d1e645738ee4707e4df923036
 2016-05-20 15:15:07 +00:00
drh
b982bfea37 Optimizations to link list merge sort code in vdbesort.c, pcache.c, and 
rowset.c.  Resulting binaries are 10 bytes smaller and use 0.03% fewer CPU
cycles.

FossilOrigin-Name: 9033afbb31b28a8ad6856ac1f773d8e83bc9ec1c
 2016-05-20 14:54:54 +00:00
drh
1524c672e9 For queries with both ORDER BY and LIMIT, if the rows of the inner loop are 
emitted in ORDER BY order and the LIMIT has been reached, then optimize by
exiting the inner loop and continuing with the next cycle of the first outer
loop.

FossilOrigin-Name: 559733b09e9630fac9d9318a7ecbaba9134e9160
 2016-05-20 14:11:37 +00:00
drh
6326d9f6f1 Set the NULLEQ flag on the sequence counter comparison in the ORDER BY LIMIT 
optimization, to avoid coverage complaints about not testing the NULL case.

FossilOrigin-Name: ed1b30dc932a7c03e173b130c5f55f9989c7e0b4
 2016-05-20 13:44:58 +00:00
drh
17e0c47368 Autoconf configure.ac adjustment to try to get it to look for both editline 
and readline automatically.

FossilOrigin-Name: 645bd696dfd86d8c93080f6ebfddbc9639ec088b
 2016-05-20 12:22:16 +00:00
drh
73fa4737ce A few simple test cases for the ORDER BY LIMIT optimization. 
FossilOrigin-Name: 08849eab0f6ef29eaf6d2ce9c692de9b953dbd27
 2016-05-20 00:21:42 +00:00
drh
d711e52229 Appears to work now. Needs test cases, more comments, and code optimization. 
FossilOrigin-Name: 990fe50c9182f74c9b54a12602c4c30d891273e6
 2016-05-19 22:40:04 +00:00
drh
a536df4e7f In a query with both ORDER BY and LIMIT, if the inner loop satisfies the 
ORDER BY then try to cut short each invocation of the inner loop once the
LIMIT has been satisfied.  This check-in is a partial implementation only.

FossilOrigin-Name: 852d1eda6ecca1171f6ed800b06f5b4854672002
 2016-05-19 22:13:37 +00:00
drh
bc5eac00c2 Fixup comments on wctrlFlags value definitions. 
FossilOrigin-Name: 58b516e8c0b00a41bc0364eab267bc2ecb9efeff
 2016-05-19 19:31:30 +00:00
drh
ce943bc834 Clean up the WHERE_* macros used for the wctrlFlags parameter on the 
sqlite3WhereBegin() interface, freeing up some bits to be used for other things.

FossilOrigin-Name: d01305841da94b2d47e32744802f69525bf590df
 2016-05-19 18:56:33 +00:00
drh
a43a02e42e Optimization marks in vdbe.c. No logic changes. 
FossilOrigin-Name: cf2737415aff7de7e133da174b645324c99d5758
 2016-05-19 17:51:19 +00:00
drh
0eda6cd80d Performance improvement in the OP_Column opcode. 
FossilOrigin-Name: 4737cadc414c5f6d256fcceacb19d80d66a8c8e7
 2016-05-19 16:58:42 +00:00
dan
21690ff7fc Add test cases to test some fts3/4 edge case behaviour surrounding the '*' character. 
FossilOrigin-Name: 1f577e1f08159aeaaf19a7020d9004dd6103d57b
 2016-05-19 16:21:30 +00:00
drh
4ca239fd55 Small size reduction and performance improvement in the OP_Column opcode. 
FossilOrigin-Name: 0d7730611be974162d9a064a041957d04d55b6d3
 2016-05-19 11:12:43 +00:00
drh
3847636701 Add the "scrub" utility program that simultaneously backs-up a live database 
and erases all deleted content.

FossilOrigin-Name: c981ab2a4771f8c5e95e2e85e37a02a4bd0e36ee
 2016-05-18 21:03:27 +00:00
drh
15efecef6c Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. 
FossilOrigin-Name: 915416d15f43c4e1d3afa8121bb6fa09f9f67e30
 2016-05-18 21:01:27 +00:00
drh
55bcaf6829 Version 3.13.0 
FossilOrigin-Name: fc49f556e48970561d7ab6a2f24fdd7d9eb81ff2
 2016-05-18 10:57:30 +00:00
drh
0d2c3a0e11 Enhance the scrub utility program so that it does a FULL checkpoint prior to 
starting the backup, to ensure that the database file content matches what needs
to be backed up without having to look at the WAL file.

FossilOrigin-Name: ab1c5ce50f139070d7a322f43132a93c8af2ed68
 2016-05-17 21:17:51 +00:00
drh
8884d99926 Merge the latest changes from trunk. 
FossilOrigin-Name: 5021dfe1f3f723a5938d547a0308f1d63103702d
 2016-05-17 17:11:21 +00:00
dan
ee7de914d4 Do not run snapshot_fault.test as part of the inmemory_journal permutation. 
FossilOrigin-Name: 995c084bde44e678facc5f5d95a2335ce61e57b0
 2016-05-16 14:35:15 +00:00