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21,092 Commits 1,608 Branches 185 Tags
d901b168b58bb82192bcfc5dcb3b7ae316af1497
Commit Graph

14444 Commits

Author SHA1 Message Date
drh
80159da6c6 In sqlite3BtreeInsert() when replacing a re-existing row, try to overwrite 
the cell directly rather than deallocate and reallocate the cell.

FossilOrigin-Name: 0b86fbca6615ccf1f3a62614db577a8acbec6d9e
 2016-12-09 17:32:51 +00:00
drh
a2ee589c46 Avoid unnecessary zeroing of fields in the MemPage object that are going 
to be reinitialized before use anyhow.  A smaller and faster binary results.

FossilOrigin-Name: 01ada3d1068476f90dcae02cb089001ea4bcc23d
 2016-12-09 16:02:00 +00:00
drh
e0568d6fb8 Fix an obscure problem in range estimation with STAT4. 
FossilOrigin-Name: 1f16c9a76bc48331799f33b30d143c632fe0e7db
 2016-12-09 00:15:17 +00:00
drh
2700acaacd More changes to take advantage of the sqlite3VdbeAppendP4() method. 
FossilOrigin-Name: 83bc5e40af9b20afeed008bf3e2669b7ac9e2dc8
 2016-12-08 01:38:24 +00:00
drh
f14b7fb73b Add the sqlite3VdbeAppendP4() method for adding P4 content to the most recently 
coded instruction.

FossilOrigin-Name: 28883e8f3e92a8015fb5f6c8ae8580833931543d
 2016-12-07 21:35:55 +00:00
drh
861b1307cb The use P4_DYNAMIC in place of the P4_MPRINTF operand type. 
FossilOrigin-Name: 3954f83798ed78527280c9db6360c62a5134b9ec
 2016-12-07 20:22:31 +00:00
drh
bdaa1ee2ee Performance optimization for sqlite3VdbeAddOp4(). 
FossilOrigin-Name: 04716c907bf9fc9b827e18fdc7b4e1069e201536
 2016-12-07 20:09:51 +00:00
drh
4ed8c83cfd Put the SQLITE_UNTESTABLE compile-time option in the correct order for 
PRAGMA compile_options.

FossilOrigin-Name: 24574a15a336ffcb961334f84b56e9ab98490a79
 2016-12-07 17:06:12 +00:00
drh
d12602a9c5 Rename the SQLITE_OMIT_BUILTIN_TEST compile-time option to SQLITE_UNTESTABLE. 
FossilOrigin-Name: f360818737e73ee4f944685a547abc8f14f47819
 2016-12-07 15:49:02 +00:00
dan
44c5604ced Prevent the flattening or where-term push-down optimizations from obscuring 
misuses of SQL row values that can lead to crashes or assert() failures.

FossilOrigin-Name: 433d16ff3adfede3be53d5b0e0512f37e225591b
 2016-12-07 15:38:37 +00:00
drh
9314bd5fe2 Always honor the sqlite3.dbOptFlags bitmask, regardless of compile-time 
options.  Continuing fix for ticket [da78413751863].

FossilOrigin-Name: afab166313e0b8ad530df99887437a362398ed02
 2016-12-07 13:49:11 +00:00
drh
abfd35ea03 Performance improvement and size reduction in the Expr node allocator 
function sqlite3PExpr().

FossilOrigin-Name: 2a81763e68cdf9b8c46389b1e1a87bc2084b53e7
 2016-12-06 22:47:23 +00:00
dan
2b519ab015 Add missing nul-terminator to a Tcl_AppendResult() call in tclsqlite.c. 
FossilOrigin-Name: 0820f8b3dedfc846d187844847dfa8617539fc9a
 2016-12-06 19:33:42 +00:00
drh
e6ad1717da Fix a harmless redundant local variable declaration in the date/time function 
logic.

FossilOrigin-Name: b4bc40d1836d8ed0803b81a734ce48be8e9d434a
 2016-12-05 20:16:04 +00:00
drh
25ef7f55d7 Work around a bug in the definition of "ino_t" on some versions of Android. 
FossilOrigin-Name: 8df492c1711bfea250264fdaa4892e0842705f83
 2016-12-05 20:06:45 +00:00
drh
6d4e9c3d92 Simplify the date/time function logic for improved rebustness and also to 
decrease the size of the binary.

FossilOrigin-Name: 6e144735ed0cd3d4461ae6a4d8034264563e3165
 2016-12-02 19:07:03 +00:00
drh
861a56821b Extend the valid range of 'unixepoch' dates from JulianDay 0 through 9999-12-31. 
FossilOrigin-Name: 768c9859b21a3c88be084d6dd87acab4211b3a87
 2016-12-02 17:08:27 +00:00
dan
edaeba5e64 Avoid clearing the EP_FromJoin flag from terms in ON clauses when flattening 
sub-selects. Possible fix for [2df0107b].

FossilOrigin-Name: a427c4052820d90c3c8c23abf9097f973e564010
 2016-12-01 19:58:01 +00:00
dan
92ddb3bd02 Avoid clearing the EP_FromJoin flag from terms in ON clauses when flattening 
sub-selects. Possible fix for [2df0107b].

FossilOrigin-Name: 8bed4cd549759a93c4a087d8d8c08c0068ba8d59
 2016-12-01 19:38:05 +00:00
drh
698a01ca2f Faster version of patternCompare() that uses new return values rather than 
an extra parameter to communicate wildcard information back up to parent
searches.

FossilOrigin-Name: a1e2b6ce3af690ae91bda3d056357205c4018da7
 2016-12-01 18:49:40 +00:00
dan
1a4a73764c Modify the patternCompare() function (used for GLOB, LIKE) to better handle 
patterns containing multiple wildcard characters ("*", "%").

FossilOrigin-Name: c5e5614d98a752738c081fecdd1e349a1a92b0e5
 2016-12-01 17:34:59 +00:00
drh
c9c81dc6d7 Add the remember(V,PTR) extension function which copies an SQL value into 
an application variable.

FossilOrigin-Name: d2d30914d81022d7d4e1670caf9326524520deaf
 2016-11-30 16:54:52 +00:00
drh
77320ea48d Fix then handling of the (oversized) integer literal -0x8000000000000000. 
FossilOrigin-Name: 3816bb415ecfd4f36430d0fcbc878e382975de60
 2016-11-30 14:47:37 +00:00
drh
ab5be2e651 Change the OP_DecrJumpZero opcode back to its old behavior of always 
decrementing, except top the decrementing when it reaches the largest negative
number.

FossilOrigin-Name: 9d0d8c2e7c529562889de02346733dcb532e9388
 2016-11-30 05:08:59 +00:00
drh
b5489b88b0 More improvements to boundary cases in the date/time functions, flowing out 
of branch coverage testing.

FossilOrigin-Name: 1218005ab7b52ef45db1354d17fdd8a1a1af9854
 2016-11-30 04:07:57 +00:00
drh
64777ba834 Prevent a warning about integer overflow when using a very large negative 
LIMIT.

FossilOrigin-Name: 96106d5620eae51474234f4eec1d2c5bd570d486
 2016-11-30 01:05:41 +00:00
drh
d76a902c87 Further changes to the date/time functions to suppress harmless signed 
integer overflow warnings that could have occurred when doing out-of-range
date calculations which, according to the docs, give undefined results.

FossilOrigin-Name: dc453b3403450b1d8cc53daf0721fed025b9053c
 2016-11-30 00:48:28 +00:00
drh
3edb157e23 The documentation says that the built-in date-time functions give undefined 
results for dates before 0000-01-01 and after 9999-12-31.  Change the
actually implementation so that the answer given is really NULL.  This also
avoids unnecessary hand-wringing over an signed integer overflow that might
otherwise occur when processing out-of-bound dates.

FossilOrigin-Name: d410a839752153c6d8be08f758abfbc16475745a
 2016-11-29 20:39:48 +00:00
drh
bc60368d6f Fix broken hyperlinks to the sqlite3_snapshot objection definition 
in the documentation.  No changes to code.

FossilOrigin-Name: 9021f6875f897d8b609ebcc04162dc6e0b529a4a
 2016-11-28 21:22:26 +00:00
drh
dd5fa17d3c Add the sqlite3_snapshot_recover() interface and related functionality. 
FossilOrigin-Name: b70c85ce6d07b08e13f4ea99edb8f4855a6d7580
 2016-11-26 19:44:40 +00:00
drh
6412a4c8a5 Clarification of the behavior of sqlite3_stmt_readonly() on BEGIN IMMEDIATE 
statements.  The is comment changes only - no changes to code.

FossilOrigin-Name: a4205a83e4ed977a89ecae665604993711f7dd3f
 2016-11-25 20:20:40 +00:00
drh
9057fc7c7f Remove the OP_RowKey opcode. Use OP_RowData in its place. 
FossilOrigin-Name: 6ac7b07a4aff2e1a9031289e3dafdb9ac0071c24
 2016-11-25 19:32:32 +00:00
drh
cb3cabd01b Refactor the sqlite3BtreeKey() and sqlite3BtreeData() internal interfaces 
into sqlite3BtreePayload() and sqlite3BtreePayloadChecked(), respectively.
This is a continuation of the optimization started by check-in
[2d831074cf].  The result is a slightly smaller and faster binary.

FossilOrigin-Name: 49ebc219faea30eaa61def4a3fba2817b9c58a86
 2016-11-25 19:18:28 +00:00
drh
06a09a828a Small performance increase and size reduction in the OP_Column opcode. 
FossilOrigin-Name: a9498407e646305e7b60115d63e85c642bbd1c3f
 2016-11-25 17:03:03 +00:00
drh
e9bb566096 Performance enhancement to sqlite3_snprintf(). 
FossilOrigin-Name: c53dca7fadd81ea340fef776373cbb122c9ccd46
 2016-11-25 15:47:53 +00:00
drh
043e586e29 Performance improvement in sqlite3StrAccumFinish() for the common case where 
no memory allocation is required.

FossilOrigin-Name: b6acf5d4ef016326a079463e70e71c2fc95a352d
 2016-11-25 15:11:26 +00:00
drh
36fd41e52b Add a comment to help clarify the EP_FromJoin hack in exprCodeBetween(). 
FossilOrigin-Name: 6df7c5747e0247b14bf015ef4320ddcf6fccf694
 2016-11-25 14:30:42 +00:00
drh
36f49d0565 Fix the error message for invalid ".mode" arguments in the command-line shell, 
so that it mentions the new "quote" mode.

FossilOrigin-Name: 9a603a18ef626b7d7a24b82eb961d6d8b4926195
 2016-11-23 23:18:45 +00:00
dan
4b72524072 Code constant vector components outside of any loops in CASE and BETWEEN 
expressions. Fix for [1a684656].

FossilOrigin-Name: c08aff13ead3e6a8b92c0f031b08f7e556922e70
 2016-11-23 19:31:18 +00:00
drh
30642cf4d2 Correctly display the names of SQL functions in the VDBE_PROFILE output. 
FossilOrigin-Name: 161192f17273f32f1b3b82d41135aaca047e9a83
 2016-11-23 14:19:11 +00:00
drh
4b4ffadb43 Merge bug fixes and enhancements from trunk. 
FossilOrigin-Name: e2c4bdf54fc1b9605226c7d6c79ef4f8302d6213
 2016-11-22 22:23:56 +00:00
drh
bc88711d08 Enclose the sqlite3WalSnapshotRecover() routine within 
FossilOrigin-Name: e7be3183eb25e0f9f04b9e251ff37fa5e50cc1a7
 2016-11-22 21:11:59 +00:00
drh
65f38d960d Remove unnecessary OP_Close opcodes for a size reduction and performance 
increase.

FossilOrigin-Name: 32be7aae92ee48bf2cd260ea41e79c2bc62738f9
 2016-11-22 01:26:42 +00:00
drh
60ffc80756 Remove unnecessary OP_Close opcodes at the end of INSERT operations, resulting 
in smaller and faster code.

FossilOrigin-Name: abeddb6d5a4040e1d0a87a4f32ad79794ba0842b
 2016-11-21 21:33:46 +00:00
drh
c10b9dac84 Fix harmless compiler warnings. 
FossilOrigin-Name: b3b7b42d9a4a0e7e2be8b2933328a7bec2f49a81
 2016-11-20 17:59:59 +00:00
drh
0f85b2ff09 Prevent a possible use-after-free bug in the query optimizer. 
FossilOrigin-Name: 0a98c8d76ac86412d5eb68de994658c250989349
 2016-11-20 12:00:27 +00:00
dan
93f5113290 Remove the requirement to open the wal file before sqlite3_snapshot_recover() 
is called. Also add some comments to new functions.

FossilOrigin-Name: 28393c413cc4505b94411730e728583c5d4baaae
 2016-11-19 18:31:37 +00:00
dan
6a9e7f16eb Fix a problem causing sqlite3_snapshot_recover() to return 
SQLITE_IOERR_SHORT_READ.

FossilOrigin-Name: 525f75fa9fd4a95acc3fb3b0a01dabe2be39b383
 2016-11-19 16:35:53 +00:00
dan
5b4009f637 Fix a bug in sqlite3_snapshot_recover() that could cause subsequent read 
transactions to use out-of-data cache entries.

FossilOrigin-Name: 9abeb7980a34cec11a3420e14ad98a4ec0d9c599
 2016-11-19 14:53:22 +00:00
dan
1158498dce Add experimental sqlite3_snapshot_recover() API. 
FossilOrigin-Name: 174a6076a8d7bebe5efebf55f3fdc5d87c589cc7
 2016-11-18 20:49:43 +00:00