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12084 Commits

Author SHA1 Message Date
dan
5810d0315b Add tests to verify the fix for bug [4ef7e3cfca]. 
FossilOrigin-Name: 62410bb8a7b33efcd13bce8fd75b83523922adb8
 2014-03-04 11:35:20 +00:00
mistachkin
9d42cc994c Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. 
FossilOrigin-Name: 5bcd0b1ca5d73ffbe7978ee9d73fe5e769e3d3a2
 2014-03-04 11:29:42 +00:00
mistachkin
ffe6bc2b93 Fix harmless compiler warning. 
FossilOrigin-Name: 8d18a803bdeab290a6e9ff26911897f5f8683876
 2014-03-04 11:16:20 +00:00
drh
d34ab07507 Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. 
Create fast-track special case routines to handle the common cases more
quickly.  This gives a significant performance boost.

FossilOrigin-Name: 3325ad5bdc2f81f63b556d6f4d0589d89b142b2b
 2014-03-04 04:12:56 +00:00
drh
f926d1ea47 Fix more instances of assuming 'char' is signed. And, make sure to never shift 
a signed integer.

FossilOrigin-Name: f10130ede433a19b3945753f23962871c8d2dcf3
 2014-03-04 04:04:33 +00:00
drh
a9e0aeb552 Do not assume that 'char' is signed. Make it explicit. 
FossilOrigin-Name: 979da752e6f8767a61a8efed824ffad9605d0f4c
 2014-03-04 00:15:16 +00:00
drh
f2c135fabd Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. 
Create a couple of fast-track routines to handle the common cases of a string
with BINARY collation or integer values as the left-most column.  This gives
a significant performance boost in common use.

FossilOrigin-Name: aec5473a750e412eb1e11e17bbafd760db086c86
 2014-03-03 21:59:33 +00:00
drh
13a747e5e4 Fix a couple of harmless compiler warnings. 
FossilOrigin-Name: fcf480cc630976b619aabd5f7fb7b09601a178fb
 2014-03-03 21:46:55 +00:00
dan
9b8afef260 Avoid a buffer overread in vdbeCompareRecordInt() that might occur if the database is corrupt. 
FossilOrigin-Name: 7c0b4381f0e6f33cb13299a915851d9431bf3850
 2014-03-03 20:48:50 +00:00
drh
5668969a69 Fix a typo in a comment. No changes to code. 
FossilOrigin-Name: 1f4991ab1676bf85599fc32068ceeddeb05f648c
 2014-03-03 19:29:28 +00:00
drh
295aedf097 Fix compiler warnings. 
FossilOrigin-Name: ba8993727e5752cbc92c7d78437e9e0510c899f7
 2014-03-03 18:25:24 +00:00
dan
80b2f97234 Merge latest trunk changes. 
FossilOrigin-Name: 1d60356462f111ed147aa865dd17a13511db6ab7
 2014-03-03 17:48:03 +00:00
drh
6295524e3d Change an OP_SCopy into an OP_Copy in a case where the destination might be 
used after the source has changed.

FossilOrigin-Name: c0fa0c0e2de50d7eda19ab8862496b18eff93538
 2014-03-03 17:36:39 +00:00
dan
dea63f24e1 Change the "explain_i" tcl test command so that xterm color codes are only added if the output is actually a terminal. 
FossilOrigin-Name: 559835e54e0715f2b4d207d056199a8268af739e
 2014-03-03 16:48:47 +00:00
drh
fcb44a89f2 Fix a harmless compiler warning. 
FossilOrigin-Name: d7f6837e6997a4d5c0fd2d08b52887d691dd6f97
 2014-03-03 15:13:27 +00:00
dan
900defa07a Merge latest trunk changes. 
FossilOrigin-Name: e00ed717fbe456010ec6c746490d7c3e9d94ec5a
 2014-03-03 14:45:06 +00:00
dan
fbf0f0e1f6 Fix a segfault that can occur following an OOM error. 
FossilOrigin-Name: 7fdd378d54754a3ffdc01c6c0a66cf6d5899a495
 2014-03-03 14:20:30 +00:00
drh
f21fa489b1 Change the MEM_Dyn flag so that it means that Mem.xDel exists and must 
be used to free the string or blob. Add tighter invariant checks on Mem.

FossilOrigin-Name: e3f6c61e0333d4d237dcd2ba2e404f0a91ee5069
 2014-03-03 00:12:39 +00:00
dan
7e065fcf7d Merge trunk changes. 
FossilOrigin-Name: 9c1747b5ded995e77fdab2fa9d334ec3c17c7c14
 2014-03-01 19:45:23 +00:00
dan
3833e934d3 Remove the vdbeRecordCompareLargeHeader function. Fix some other details. 
FossilOrigin-Name: 3861e853105cb8da344c7eebd2e455622b26395e
 2014-03-01 19:44:56 +00:00
drh
c91b2fd310 Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be 
used to free the string or blob.  Add tighter invariant checks on Mem.

FossilOrigin-Name: 44e1c33767cae3bf2cbd2238831fe67197009b43
 2014-03-01 18:13:23 +00:00
drh
75fd054201 Factor the Mem invariant checker into a separate procedure (rather than a 
macro) so that it can be more easily extended.

FossilOrigin-Name: 354699d50e7d251504a7b3d6fbec9e5bcf99557f
 2014-03-01 16:24:44 +00:00
drh
defbd9dade Add extra assert() statements trying to catch a Mem object in an inconsistent 
state.

FossilOrigin-Name: 4aeb3ae435c78070232fef21a147fde4e1c5cd31
 2014-03-01 14:45:18 +00:00
drh
efbf3b1a10 In the command-line shell add the (undocumented and unsupported) ".eqp" 
command and -eqp command-line option, to cause EXPLAIN QUERY PLAN to be
run on each SQL statement as it is evaluated.  Intended use is for analysis
of the query planner.

FossilOrigin-Name: e6ecf7337658624d664e1e71ba3fc527fd6578c1
 2014-02-28 20:47:24 +00:00
drh
07901eb8c3 Provide an #ifdef in shell.c to work around issues when cross-compiling 
from Ubuntu to windows.

FossilOrigin-Name: 0a3579d9b9d2a60bb85a9811bc7936edb88debae
 2014-02-28 19:37:45 +00:00
dan
597515d70c Update some test cases that deal with corrupt databases. 
FossilOrigin-Name: 3a09f5605ac7c6e503eb10acfdc607010414d917
 2014-02-28 18:39:51 +00:00
dan
063d4a041a Minor tweak to vdbeRecordCompareInt(). 
FossilOrigin-Name: 284bde0ee20261737446eb8f5b6b36ad9bc3f355
 2014-02-28 09:48:30 +00:00
dan
a6efad8a97 Merge in latest trunk changes. 
FossilOrigin-Name: 8f30b09518d23c3f6cecd244a66ef918fdb55323
 2014-02-27 20:52:26 +00:00
dan
3b9330f83c Further changes to sqlite3VdbeRecordCompare(). 
FossilOrigin-Name: 570893740067a7caa952f259fa078cdf67017d71
 2014-02-27 20:44:18 +00:00
drh
69b30abd59 A better way of handling the USE_SYSTEM_SQLITE #define in shell.c. 
FossilOrigin-Name: 51ce713c6ee91bdf0126155334dcc800b3daa509
 2014-02-27 15:11:52 +00:00
drh
c718190768 Add #defines to the command-line shell source code (shell.c) so that it 
can be imported directly into other projects (ex: Fossil) and used without 
editing.

FossilOrigin-Name: a6690400235705ecc0d1a60dacff6ad5fb1f944a
 2014-02-27 15:04:13 +00:00
drh
7e4efaecad More efficient removal of duplicates in recursive queries using the UNION 
compound operator.

FossilOrigin-Name: 06c2db875e6cabd81c2a153b2fa4aba03eaed268
 2014-02-26 21:35:31 +00:00
drh
3852b68edd In the command-line shell for CSV import, if the lines are \r\n terminated 
and the last field is blank, make sure an empty string and not a "\r" string
is imported.

FossilOrigin-Name: 9c2e7612cd137895e13ee872e668ce1216719d85
 2014-02-26 13:53:34 +00:00
drh
434a93147c Improved handling of constants and especially constant functions in the 
ORDER BY clause of a query.  Do not optimize out "ORDER BY random()".
Fix for ticket [65bdeb9739605cc2296].

FossilOrigin-Name: dca1945aeb3fb005263f9be00ee8e72b966ae303
 2014-02-26 02:26:09 +00:00
drh
0baa035a1e Do not allow temporary registers to be in use across an OP_Yield within a 
co-routine.  Fix for ticket [8c63ff0eca81a9132d8].

FossilOrigin-Name: 97a8c9733cba97c78e979dfd5c66610c23e90288
 2014-02-25 21:55:16 +00:00
dan
1fed5dab0d Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. 
FossilOrigin-Name: 85206e0bbac29adab52bef795f6d1479f2ae2c0e
 2014-02-25 21:01:25 +00:00
drh
e8c1eba9a9 Also adjust the order of files in the amalgamation to ensure that 
_FILE_OFFSET_BITS is defined before any #include, for QNX.

FossilOrigin-Name: 23001a85cd334090cf6c70d4d7e722a01f4f6899
 2014-02-25 18:12:58 +00:00
drh
5e990bea51 QNX requires that _FILE_OFFSET_BITS be set prior to any system #include. 
FossilOrigin-Name: 953cdd6adadfd46b51ad61d7939cecca154a02cb
 2014-02-25 14:52:01 +00:00
mistachkin
151d05cd39 Fix several small style/consistency issues with the previous check-in. 
FossilOrigin-Name: 2477b3a294beb35f806a38f3ebc008942ba01617
 2014-02-24 21:42:33 +00:00
mistachkin
edb4ece65e Merge updates from trunk. 
FossilOrigin-Name: 854d410ad3a2bb3af5465d933ac9535fe3f22bfe
 2014-02-24 21:23:07 +00:00
mistachkin
1925a2e6f8 Enhance testing support for the Win32 VFS dynamic extension loading facilities. 
FossilOrigin-Name: 53081e7202fb55f792a78e73627466eb0200f11c
 2014-02-24 21:20:25 +00:00
dan
98c91905c9 Close some stray connections in walro.test. 
FossilOrigin-Name: d6746cabaa22429644c956a4b5fd91896376de2d
 2014-02-24 19:49:36 +00:00
drh
9d41bc105d In memsys5, initialize new allocations to non-zero bytes. Change the content 
of freed allocations to prevent use after free.  These changes in SQLITE_DEBUG
only.

FossilOrigin-Name: ba5f0a5599dece6d8f3dfe652800c28875c74a24
 2014-02-24 19:07:51 +00:00
drh
15ab9418d9 Remove an unused variable from the VDBE_PROFILE compile-time option. Keep the 
opcode count in an u32 instead of an int.

FossilOrigin-Name: 4df0ac9023d9261145a4425a508ba009a10276fc
 2014-02-24 14:24:01 +00:00
mistachkin
5b4627e957 Better loadable extension handling in the Win32 VFS when compiled for Cygwin. 
FossilOrigin-Name: 6676475c47558a52cb2632e92a541e13d143b2dc
 2014-02-21 05:44:18 +00:00
drh
4d87aaed56 Fix the text of a comment used to generate VDBE opcode documentation so that 
it omits symbols that can be mistaken for a hyperlink by the parser.

FossilOrigin-Name: b46d4e8923e6e367412bba7aeac07039bbcbabd1
 2014-02-20 19:42:00 +00:00
drh
06280ee582 Fix a harmless shadowed-variable warning. 
FossilOrigin-Name: 824029090d1c4c4c608f67dd197961eba29c039d
 2014-02-20 19:32:38 +00:00
drh
4300c1ae3b Make sure that the difference between two string pointers is passed into 
sqlite3_mprintf() as type "int".

FossilOrigin-Name: d5d973fedcf5a2eea219f10e11ba3dacdd0593f0
 2014-02-20 19:23:15 +00:00
drh
5655c549aa Add the VdbeCoverageNeverTaken() macro, and comments that better describe how 
the VDBE branch coverage measurement works.  Add some tags to provide 100%
VDBE branch coverage.

FossilOrigin-Name: c1e94169dd8eb80b4d18c73be9f81585330d11ad
 2014-02-19 19:14:34 +00:00
drh
3d77dee935 Add the SQLITE_NOTNULL P5 code for comparison operations - really a composite 
of SQLITE_NULLEQ and SQLITE_JUMPIFNULL.  This flag indicates that NULL operands
are not possible and raises and assert() if NULL operands are seen.
Also omit an unnecessary scan of the sqlite_sequence table when writing
into an AUTOINCREMENT table.

FossilOrigin-Name: d2c047f304848e49864ed8c216b48fd671fa3916
 2014-02-19 14:20:49 +00:00
drh
c0bf493ea5 Make sure a multi-row VALUES clause works correctly in a compound SELECT. 
FossilOrigin-Name: 85b355cfb40e8dbeb171980204ffad897184063f
 2014-02-19 01:31:02 +00:00
drh
49d9ba6354 Tweaks in support of VDBE branch test coverage. 
FossilOrigin-Name: b97825646996792d0a67b83f135658027c8569ca
 2014-02-19 00:53:46 +00:00
drh
f4345e40a0 Fix VDBE branch accounting on comparison operators. 
FossilOrigin-Name: b287520c9226f7a9fab98142f5c207bfe959cd7e
 2014-02-18 11:31:59 +00:00
drh
7d1761059b Add VdbeCoverage() and VdbeCoverageIf() macros for improved VDBE coverage 
testing.

FossilOrigin-Name: b92d31a97d5fe4606d9ae1393c7f3e052f46bf5a
 2014-02-18 03:07:12 +00:00
drh
552fd45441 Improvements to "NOT IN (SELECT ...)" processing. Only test for NULL values 
on the RHS on the first iteration, then remember the result.  There has been
logic to do this for year, but it didn't work right and ended up repeating
the NULL test on every iteration.  This inefficiency was found using the
VDBE coverage testing tools.

FossilOrigin-Name: 915f6f1c7aab54583729e60bdc1565f25ecc6f74
 2014-02-18 01:07:38 +00:00
drh
bb13813ed1 Merge in performance enhancements for INSERT operations, especially INSERTs 
on tables that have no affinity columns or that have many indices or INSERTs
with content coming from a SELECT.  Add the SQLITE_TESTCTRL_VDBE_COVERAGE
test control and the SQLITE_VDBE_COVERAGE compile-time option used for measure
coverage of branches in VDBE programs.

FossilOrigin-Name: a72687699ba2af2e7383be7371d4121750c7e34f
 2014-02-17 23:52:13 +00:00
drh
688852ab15 Add logic to do test coverage measurements on the VDBE code. 
FossilOrigin-Name: ce184c7bb16988641d37c908d9b3042456d4be3d
 2014-02-17 22:40:43 +00:00
drh
8be09304b7 Add a test case for OP_SoftNull. 
FossilOrigin-Name: f29d194e03d6bcc78bf883b77e591dbccada02f0
 2014-02-17 15:40:19 +00:00
drh
7591051a73 Merge the VDBE_PROFILE fixes from trunk. 
FossilOrigin-Name: 2914e4191121004a3f564b1fbf1c235dcc595503
 2014-02-17 15:36:39 +00:00
drh
57bf4a8eeb Avoid unnecessary calls to applyAffinity() during INSERT and UPDATE 
operations, especially for table that have indices and tables for which
all columns have affinity "NONE".

FossilOrigin-Name: 35b4d6e938164fabaf30b504c54cfd9a69060cee
 2014-02-17 14:59:22 +00:00
drh
2926f9694f Fix the VDBE_PROFILE logic. Add a script to process the output file. 
FossilOrigin-Name: 7adb3da235c8c162c84f05ef4ccf1cc463805d5f
 2014-02-17 01:13:28 +00:00
mistachkin
65acf373c9 Use the modern MinGW major version macro, not the deprecated one. 
FossilOrigin-Name: 057c16ee9786efcad6372a29b02d743ff3d628ff
 2014-02-16 19:20:00 +00:00
drh
05a86c5c0f Enhance the code generator for INSERT INTO ... SELECT so that the SELECT 
generates output directly in the registers that INSERT INTO will be using,
in many cases, and OP_SCopy operations can thus be avoided.

FossilOrigin-Name: aa2d8b0e8154dd2f5e2c837dc11ab362b083495b
 2014-02-16 01:55:49 +00:00
drh
cfc6ca4179 Seek past NULLs in a top-constrained search. Avoid checking for NULLs in 
the body of the search.

FossilOrigin-Name: e07a32f30862acf3b322d4d8deb015846d6f8f5f
 2014-02-14 23:49:13 +00:00
mistachkin
a7b3b63524 Better support for MinGW 4.x. 
FossilOrigin-Name: e147230767383ed9f64085b613fd18508f74be21
 2014-02-14 23:35:49 +00:00
drh
f78da0e6af Reduce the number of cases where it is necessary to check for NULL after 
the loop terminating condition.

FossilOrigin-Name: 3c1ae447dec8fc2af1c5105134061717594ac0e0
 2014-02-14 20:59:53 +00:00
drh
4a1d365903 Add OP_IdxGT and OP_IdxLE as distinct opcodes. Formerly these operations where 
done using OP_IdxGE and OP_IdxLT with the P5 flag set.  But VDBE code is easier
to read with distinct opcode names.  Also change OP_SeekGe to OP_SeekGE, and
so forth, so that the capitalization is consistent.  The whole point of this
change is to improve the readability of VDBE listings.

FossilOrigin-Name: b6bea903ac8e1717ed50b221d73bd0be061c7663
 2014-02-14 15:13:36 +00:00
mistachkin
2953ba9e20 Revise how the Tcl system encoding is handled by the test suite. 
FossilOrigin-Name: 9e573198e107f1b85ee37c52a10343d38968bda1
 2014-02-14 00:25:03 +00:00
mistachkin
3f40d40ad9 Improvements to the makefile and README for MSVC. 
FossilOrigin-Name: b22b61406899c2694dae984995d2484fdb8122f1
 2014-02-13 21:57:48 +00:00
dan
dd973548f1 Ensure that if the "psow=0" URI option or FCNTL_POWERSAFE_OVERWRITE file-control is used to clear the power-safe overwrite flag, extra padding frames are added to the WAL file. 
FossilOrigin-Name: 48c821fd97a8f03757c90560c37a46bd0843570e
 2014-02-13 19:27:08 +00:00
drh
56e3767eb4 Change README to README.md and expand it. Remove unrelated and obsolete files. 
FossilOrigin-Name: 18d4e258c45c32984b23d97b896a761eeef2dbdf
 2014-02-13 19:10:24 +00:00
dan
e5b6ea797e Avoid passing a flags argument with the internal WAL_SYNC_TRANSACTIONS bit set when calling sqlite3OsSync(). 
FossilOrigin-Name: e3b79e920c298a39613631d689d1a2f182d00496
 2014-02-13 18:46:59 +00:00
drh
962f9669b6 Update the tclconfig files to the latest from http://core.tcl.tk/tclconfig. 
FossilOrigin-Name: b81ba7a4bc7e840fce25fc6801957a64f877ff60
 2014-02-13 13:42:43 +00:00
drh
fe48599294 Minor simplifications to the "zeroPage()" routine in btree.c. 
FossilOrigin-Name: cc8f10bcb206c9def69b06f26decf025b8d9119d
 2014-02-12 23:52:16 +00:00
drh
e0670b6220 Remove the "rowid cache" that sought to remember the largest rowid for a 
table and thereby speed up OP_NewRowid.  That cache was ineffective.
Removing it results in a performance increase of 0.4%, less memory usage,
and a slightly smaller library size.

FossilOrigin-Name: 56bc5ce8958c8e6250531b4052b905d7ac993db3
 2014-02-12 21:31:12 +00:00
drh
784156f84c Make sure "rowid" columns are correctly resolved in joins between normal 
tables and WITHOUT ROWID tables.  Fix for ticket [c34d0557f740c45070].

FossilOrigin-Name: 5d01426ddfb2d47c57f93f71378594e637424be0
 2014-02-12 14:43:52 +00:00
drh
c5185cd845 Increase the version number to 3.8.4 
FossilOrigin-Name: 0a8bcbbd4e11a60923736b2be9b1ce83ea2263fb
 2014-02-11 16:24:34 +00:00
drh
39a3088dc4 Updates to the command-line shell. Simplify the banner message. Add the 
".save" command as an alias for ".backup".  When starting with no arguments,
include a banner message warning that the database is transient and in-memory
and mention the ".open" command.

FossilOrigin-Name: f5ad1e1bf2828c5da70c1ff944d8212036142e6f
 2014-02-11 16:22:18 +00:00
drh
aaa21b41e8 Fixes to the "editline" support in the command-line shell. 
FossilOrigin-Name: 7989ce5f105657060a39be295255da8eff9ed56e
 2014-02-11 14:37:51 +00:00
drh
7c3280649a Make sure that virtual WHERE-clause terms do not get transformed into real 
terms when processing set of OR-connected terms.
Fix for ticket [4c86b126f22ad].

FossilOrigin-Name: c950d6c4117d076f871518e738cdf9e8c46a19fc
 2014-02-11 01:50:29 +00:00
drh
a6e3a8c9d5 Fix a pointless conditional. Add a test case. 
FossilOrigin-Name: 9367632dd7e4fec9197227e35b0627c2e81ebffc
 2014-02-10 21:07:51 +00:00
drh
5c7976fe86 Add the ".save" command as an alias for ".backup". Improvements to the 
way font changes are implemented on the in-memory database warning.

FossilOrigin-Name: fe284afe739c497e153ac2bc0275f7c9e862c824
 2014-02-10 19:59:27 +00:00
drh
ba47ba76a5 On unix, make the "transient in-memory database" text bold, but not red. 
Leave the text read on windows.

FossilOrigin-Name: c9eba2f7be468ae7fc843ffd5b09bd062ee311c3
 2014-02-10 19:36:06 +00:00
drh
1247aa4e4a In the command-line shell, on the banner, warn about the use of a 
transient in-memory database in bold red text.

FossilOrigin-Name: 0fbc0fcec1b3a67065fa0ebb49375bf675789edc
 2014-02-10 19:27:05 +00:00
drh
8af9ad951d Fix the compound-select-to-subquery converter so that it works with the 
new compound-select object linkage introduced as part of the fix
for ticket [31a19d11b97088296].

FossilOrigin-Name: 572d4be4db03ce4afe9ae70f148703c74e0d8de0
 2014-02-10 18:56:05 +00:00
drh
b373591c5e Modify the command-line shell to print a warning when using an in-memory 
database.

FossilOrigin-Name: 90e9deae4a2bf63308a212226314aa7838c161d9
 2014-02-10 16:13:42 +00:00
drh
60830e3c53 Improvements to a "Synopsis:" comment in the VDBE engine. 
FossilOrigin-Name: 0dfa7ee9157ea6b1c745732d6c3fcd066cf4f849
 2014-02-10 15:56:34 +00:00
drh
53a6eb3f3c Faster implementation for sqlite3MulInt64(). 
FossilOrigin-Name: 010c48f671e909cb406f3716102a0032bc72a592
 2014-02-10 12:59:15 +00:00
drh
1b27b8c0a0 Faster and smaller implementation of sqlite3_value_type(). 
FossilOrigin-Name: 5708bc24b8cab623b833121183042b43e5a7021b
 2014-02-10 03:21:57 +00:00
drh
5574e3f456 Add a compound-query test to the speedtest1 test program. 
FossilOrigin-Name: 532995759114ab7a7cba18cc9d8820d78eb1a96e
 2014-02-09 23:59:28 +00:00
drh
d227a291b2 Use the WITH clause to help resolve names for SELECT statements on the left 
of a compound query.  Proposed fix for ticket [31a19d11b97088296a].

FossilOrigin-Name: 67bfd59d9087a987f15f6148efa1ff104983e1fb
 2014-02-09 18:02:09 +00:00
drh
fa46bfbbc5 Add the Mandelbrot Set testcase to the "cte" testset of speedtest1. 
FossilOrigin-Name: 56febbeb575a298ae8839b3a59711150ceb9999d
 2014-02-09 00:52:53 +00:00
drh
c47548057d Add a new "testset" to the speedtest1 program: The sudoku solver. 
FossilOrigin-Name: 4677ef2f8a726573c48ee2e532c00a68308dd7e1
 2014-02-09 00:18:21 +00:00
drh
5f61229504 Do away with the "multi-register pseudo-table" abstration. Instead, just 
use an OP_SCopy to load results directory from the result registers of
the co-routine.

FossilOrigin-Name: 1e64dd782a126f48d78c43a664844a41d0e6334e
 2014-02-08 23:20:32 +00:00
drh
826af37865 Change the OP_Found opcode so that it expands zero-blobs prior to comparing 
them.  Fix for ticket [fccbde530a6583b]

FossilOrigin-Name: e2303d1b0c17b6e7494fb7db8264f4c2ac193723
 2014-02-08 19:12:21 +00:00
drh
c0740cebeb Fix a harmless compiler warning in VS2013. 
FossilOrigin-Name: 83116ee3e0f2b9110c70a4f73a9badc9c2a56f28
 2014-02-08 13:24:04 +00:00
drh
04d0bcd533 Fix a harmless compiler warning in VS2013. 
FossilOrigin-Name: 35f2793db5eb58484554477a23f8320843ebcd71
 2014-02-08 13:22:36 +00:00
drh
725de29a2d Tweaks to the generated VDBE code to make it a little easier to follow. 
FossilOrigin-Name: 129217ee91782ec77ff82661753ae5bee8ca99d0
 2014-02-08 13:12:19 +00:00
drh
e0e261a473 Enable constant expression factoring even if no tables are read and no 
transaction is started.

FossilOrigin-Name: a45b87713c0afca2be2ace9500513620a024c0a2
 2014-02-08 04:24:37 +00:00
drh
aceb31b120 Change the OP_Trace opcode to OP_Init and give it the ability to jump to the 
initialization code at the bottom of the program, thus avoiding the need for
an extra OP_Goto.

FossilOrigin-Name: 192dea97316144f15f6dd0eabff08a0bf9ef203e
 2014-02-08 01:40:27 +00:00