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11,917 Commits 1,608 Branches 185 Tags
fe21a796f7af89c7bf6c588f28a2a2d3f646218f
Commit Graph

683 Commits

Author SHA1 Message Date
drh
729677720d Fix (harmless) duplicate variable declaration. 
FossilOrigin-Name: 94ed9bc4207873e0f3f8114009002f56d5aff359
 2014-01-27 13:58:58 +00:00
drh
693e671936 Fixes for various clang warnings. 
FossilOrigin-Name: 87bf60637e5863c54c5e2d05aaaca0835b7aace8
 2014-01-24 22:58:00 +00:00
drh
61019c7883 Omit OP_Close operations that occur immediately prior to OP_Halt and which 
cannot be jumped over.

FossilOrigin-Name: 874b7e9999811c288ad41d07709f88e458d2d497
 2014-01-04 16:49:02 +00:00
drh
762c1c4071 Avoid unnecessary affinity transformations when building indices using 
data from a table.

FossilOrigin-Name: 10d851353c2abeadbd2852c210a7ff9f7f513e5d
 2014-01-02 19:35:30 +00:00
drh
73d5b8f550 Move elements of the Vdbe object that are only used during statement 
preparation out into the Parse object.

FossilOrigin-Name: c289a253c0c053ac8fc344efe138262c327d8096
 2013-12-23 19:09:07 +00:00
drh
4eded604ea Combine adjacent single-register OP_Copy instructions into a single 
multi-register OP_Copy, where possible.  Fix the Synopsis comment for
multi-register OP_Copy instructions to show the correct register ranges.

FossilOrigin-Name: 2ae22dc0cbed2feca4baf89d02aaace0331971d6
 2013-12-20 15:59:20 +00:00
drh
9ac7962ace Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set. 
FossilOrigin-Name: 4c6a659c432e4f7c0285f58675a67f967b07bb0d
 2013-12-18 15:11:47 +00:00
drh
a3cc007df4 Simplication and optimization of error message handling. 
FossilOrigin-Name: 9d347f547e7ba9590b0c68edf50a14ad94a2bb92
 2013-12-13 16:23:55 +00:00
drh
a9ab481fca Fix harmless compiler warnings. 
FossilOrigin-Name: a7e5fcd66659750eb2f4675082df324e7cf35427
 2013-12-11 11:00:44 +00:00
drh
024045fe6e Avoid unnecessary calls to sqlite3VdbeSerialType() from within 
sqlite3VdbeSerialPut().

FossilOrigin-Name: 079c04a5013074b68f7d90f1ce8bf8e7092ad8a2
 2013-12-10 21:38:08 +00:00
drh
038b7bc4ef Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut() 
helper function.

FossilOrigin-Name: 7277a769694787e0332d1a4efc02041834661e2a
 2013-12-09 23:17:22 +00:00
dan
89bc021850 Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. 
FossilOrigin-Name: 9d8a0e132163f7adeaabbf6baba119e159addd41
 2013-12-03 09:49:52 +00:00
drh
b202366509 Change the name of the CORRUPTIBLE macro to CORRUPT_DB. 
FossilOrigin-Name: f865be10e85a4063394a21827db2d854fc25960c
 2013-11-29 15:39:36 +00:00
drh
09fe614372 Add a new sqlite3_test_control() that indicates that database files are 
always well-formed.  Use this during testing to enable assert() statements
that prove conditions that are always true for well-formed databases.

FossilOrigin-Name: 15e4f63d1f3cbcd0aa789fd3e460cd6e4d3338f9
 2013-11-29 15:06:27 +00:00
dan
0d4a0cdf18 Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. 
FossilOrigin-Name: 0bcf75516f59e49536f9e5c5cd542058ab61e2fc
 2013-11-28 14:14:31 +00:00
drh
0b9dadacd8 Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add 
an assert() to verify that the do-loop really is appropriate.  This gives
about a 10% performance boost in that routine, or a 0.9% boost overall.

FossilOrigin-Name: 011a6be439eb884c944a3318bf631bed3135f8ec
 2013-11-25 22:24:36 +00:00
drh
501932ca68 Changes some offset and amount parameters from "int" to "u32" to avoid 
harmless signed/unsigned comparison warnings.

FossilOrigin-Name: 4e8c5d0795cb7c603182bfa70f3855d654f0997e
 2013-11-21 21:59:53 +00:00
drh
f93cd949a0 Performance optimization to the OP_Next and OP_Prev opcodes. 
FossilOrigin-Name: ecaac28a2e78aca148fc614fe54bf2706aed8be2
 2013-11-21 03:12:25 +00:00
drh
5cc1023e1c Reduce the size of VdbeCursor again, this time without a performance hit. 
FossilOrigin-Name: 933939932c44bccb0958f203a5bd24e683c1cf38
 2013-11-21 01:04:02 +00:00
drh
399af1d2c2 Refactoring the OP_Column opcode for improved performance and 
maintainability.

FossilOrigin-Name: 7c914e3997d2b28164a2fa7eb4398262b6ddb4b2
 2013-11-20 17:25:55 +00:00
drh
c138dafe88 Minor performance improvement to sqlite3SerialTypeGet(). 
FossilOrigin-Name: 17e8524fc05aa1e6074c19a8ccccc5ab5883103a
 2013-11-19 13:55:34 +00:00
drh
84e55a80db Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify 
some of the other debugging logic.

FossilOrigin-Name: 8ce33f4c818e1c785a1c176f6f631b8184e1166b
 2013-11-13 17:58:23 +00:00
drh
5e6790cb15 Minor enhancements to the auxiliary information added to EXPLAIN output with 
SQLITE_EXPLAIN_ENABLE_COMMENTS.

FossilOrigin-Name: 0d1328e33ca761eddcf8a50e8e83c997861e9047
 2013-11-12 20:18:14 +00:00
drh
4308e348d7 Remove unreachable code, replacing it in most cases with assert() or NEVER() 
macros.

FossilOrigin-Name: 924d63b283a3d059838114c95d42c6feaf913529
 2013-11-11 16:55:52 +00:00
drh
2ec2fb2269 Reference count the KeyInfo object. Cache a copy of an appropriate KeyInfo 
for each index in the Index object, and reuse that one copy as much as possible.

FossilOrigin-Name: defd5205a7cc3543cdd18f906f568e943b8b3a2c
 2013-11-06 19:59:23 +00:00
drh
f9c8ce3ced Standardize the error messages generated by constraint failures to a format 
of "$TYPE constraint failed: $DETAIL".  This involves many changes to the
expected output of test cases.

FossilOrigin-Name: 54b221929744b1bcdbcc2030fef2e510618afd41
 2013-11-05 13:33:55 +00:00
drh
313619f572 Fix the Synopsis on OP_Concat. Added test_addop_breakpoint() during 
SQLITE_DEBUG.  Enhanced sqlite3VdbeChangeToNoop() to omit the instruction
if it is the most recent added.  Continue to fix problems with UPDATE
and WITHOUT ROWID.

FossilOrigin-Name: 9b6d9e106aaa3c2efb33d234d26cf08cd3c967b9
 2013-10-31 20:34:06 +00:00
drh
26198bb481 Refactor the INSERT, DELETE, and UPDATE code generators to distinguish between 
the "data cursor" and the "first index cursor", which are no longer consecutive
in the case of a WITHOUT ROWID table.

FossilOrigin-Name: 1adfca6019847d37dee4a297669f29d5ca184066
 2013-10-31 11:15:09 +00:00
drh
72ffd09188 Make sure KeyInfo objects on multi-column indices of WITHOUT ROWID tables 
have the correct nField and nXField values.  Also, add the
SQLITE_ENABLE_MODULE_COMMENT compile-time option and the VdbeModuleComment()
macro and use it to label entry and exit points of some key routines.

FossilOrigin-Name: 6d9af6065fc0da8337aee2297a8da7511eecccf1
 2013-10-30 15:52:32 +00:00
drh
5b843aa032 In the P4 column of the EXPLAIN listing, abbreviate "keyinfo" as just "k" and 
"BINARY" as just "B".

FossilOrigin-Name: 72d45eb79b5d0505050cff57a00d725948b2a0c0
 2013-10-30 13:46:01 +00:00
drh
4af5bee41d Merge EXPLAIN enhancements from trunk. 
FossilOrigin-Name: 2fcac056074f0a23884ab5425003a7ca1d35c2a8
 2013-10-30 02:37:50 +00:00
drh
c7379ce442 Add the SQLITE_ENABLE_EXPLAIN_COMMENTS compile-time option to enable extra 
commentary in the EXPLAIN output.  Formerly, this was only available with
SQLITE_DEBUG.

FossilOrigin-Name: e1a89b56f7173166bb9224e2e360fd67ad3399c3
 2013-10-30 02:28:23 +00:00
drh
f63552b258 Enhanced display of register ranges in the auxiliary comments added to EXPLAIN. 
FossilOrigin-Name: d6b0c39281d0751ecec04d7c19d9d2931d133e8e
 2013-10-30 00:25:03 +00:00
drh
28b87d857b Import the automatic comment generating changes from trunk. 
FossilOrigin-Name: 8bb51da1305d5e35c7b75bbb176c21e04ea2a48a
 2013-10-29 20:47:26 +00:00
drh
81316f8908 Automatically generated comments on many VDBE opcodes when in SQLITE_DEBUG 
most.  Comments derive from the "Synopsis:" field added to each opcode
definition in vdbe.c.

FossilOrigin-Name: 5f310c6a22b8bb5f860296074aee130c14101681
 2013-10-29 20:40:47 +00:00
drh
6f225d0d7f Replace the OP_IsUnique opcode with OP_NoConflict. This code simplification 
might be useful to move onto trunk even if this branch is never merged.

FossilOrigin-Name: e6650e16dd11327afd25961b2feb29ec8778c2ca
 2013-10-26 13:36:51 +00:00
drh
ad124329ab Some inserts and queries working for multi-column primary keys 
and WITHOUT ROWID.

FossilOrigin-Name: b21d831b2aa55507dd9def2acb02cdbffddf10d1
 2013-10-23 13:30:58 +00:00
drh
7fa2092571 Clear the current time value on prepared statements when the prepared statement 
is reset.

FossilOrigin-Name: cebd6fc551d26aea0f28cd7d25338fe0b72aae88
 2013-09-17 23:36:33 +00:00
drh
d36e104112 Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single 
new FuncDef.funcFlags field.

FossilOrigin-Name: 97b10e66e98e84755aa577f8da017bf1aea2056c
 2013-09-06 13:10:12 +00:00
dan
016f7811f2 If a virtual table xSync() returns an error message, copy it into a buffer allocated by sqlite3DbMalloc() before transfering it to Vdbe.zErrMsg. 
FossilOrigin-Name: 854ba3049005adf033e07e6740a36e63f2a56758
 2013-08-21 17:35:48 +00:00
drh
8c8a8c4573 More than double the speed of the resolveP2Values() routine in vdbeaux.c by 
moving from an extended if-else on every opcode to a switch.  Opcodes are
reordered in mkopcodesh.awk to put the switched opcodes close together,
for additional performance and to reduce code footprint.

FossilOrigin-Name: 924f7e4d7a8fa2fe9100836663f3733b6e1a9084
 2013-08-06 07:45:08 +00:00
drh
323df7907e Factor all KeyInfo object allocations into a single function: 
sqlite3KeyInfoAlloc().  Always allocate enough space so that 
sqlite3VdbeRecordCompare() can avoid checking boundaries and hence
run faster.

FossilOrigin-Name: 7301bedd94c8610568349953b18ff3575203e1b2
 2013-08-05 19:11:29 +00:00
drh
af5b2af77d Improve performance of sqlite3VdbeRecordCompare() by using an approximation 
that might give false negatives and only running the more expensive exact 
subexpression if the approximation fails.

FossilOrigin-Name: 28979dcd16f53e0ddca8eed74b668834e2856f03
 2013-08-05 15:32:09 +00:00
drh
e0c7efd9ae Add NEVER() and ALWAYS() macros on some unreachable yet prudent branches. 
FossilOrigin-Name: c5c0a8ab6c222185d5f9d4321e64d9f93cd36b7d
 2013-08-02 20:11:19 +00:00
drh
b47e07f1c1 Add support for partial indices. 
FossilOrigin-Name: 478113f18b1d28606b107b5a0bed04cb90a82cf2
 2013-08-02 16:41:02 +00:00
drh
f5601cac4d Fix a potential buffer overread in sqlite3VdbeRecordCompare() when a 
serial_type specifies a field that starts in bounds but is much too large
for the allocated buffer.  Mostly harmless.  The overread is unlikely to
go more than one or two bytes past the end of the buffer.

FossilOrigin-Name: e436b2f4e5c5e6b2f70e65332c0c7d618e2ef20a
 2013-08-01 20:26:04 +00:00
drh
df003d61ce Make sure signed integer overflow does not cause a segfault while attempting 
to read a corrupt database where the header size varint on a record is larger
than the maximum 32-bit signed integer.

FossilOrigin-Name: c3baca99f4580652afb2c3f73036ab83796a1557
 2013-08-01 19:17:39 +00:00
drh
cf0fd4a5fd Refactor internal function name sqlite3VdbeGetValue() to 
sqlite3VdbeGetBoundValue().

FossilOrigin-Name: 81834c3023876487a1188390aae850cf71683701
 2013-08-01 12:21:58 +00:00
drh
b2b9d3d758 Add the logic to keep partial indices up to date through DML statements and 
when new partial indices are created.  This new logic is untested except to
verify that it does not interfere with full indices.

FossilOrigin-Name: fb9044d15ad4fd6ae4a38858c0c0e6fe9d4faa25
 2013-08-01 01:14:43 +00:00
dan
0c5477997b Ensure that all auxiliary data registered by calls to sqlite3_set_auxdata() is destroyed when the VM is halted. Partial fix for [406d3b2ef9]. 
FossilOrigin-Name: 71effa59c98d167e6e4b269e59ad5f468e664ac1
 2013-07-18 17:12:08 +00:00