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Author SHA1 Message Date
drh
dfcdc663f2 Remove an obsolete optimization in pcache that due to more recent changes 
was recently making the code a little slower.

FossilOrigin-Name: c4e7e175eecfd79015f4fae99618dfce6baf97c21bf3c909ea535d4e12dcaaad
 2017-09-01 12:57:33 +00:00
drh
f0dae6d0a2 Small size and performance improvement in pcacheManageDirtyList() by not 
zeroing the PgHdr.pDirtyNext and PgHdr.pDirtyPrev pointers for PgHdr objects
that are not on the dirty list.

FossilOrigin-Name: 919863b14859d958d6c078097faae02070c7bd082e2814cf3f84bd84921e4419
 2017-09-01 12:18:41 +00:00
drh
38688b0b1d Clarify the documentation about "protected" versus "unprotected" sqlite3_value 
objects.  No changes to code.

FossilOrigin-Name: 4094a3410e05597d0adc740d161e0358a3041c5a4e73bde35b1e983594c6879a
 2017-08-31 21:11:52 +00:00
dan
9c1cf3235c Remove unnecessary "__declspec(dllexport)" qualifiers from generated file 
shell.c.

FossilOrigin-Name: bcc20be5b290c563183e82a590cc1fdabadfb13475fd8f6b3d810365cea5d868
 2017-08-30 13:21:17 +00:00
drh
617b7b42e3 Small performance optimization in pcache1. 
FossilOrigin-Name: ffd437da9541f8a2792e3e07c0a43f388f856fdc211fe42755eb51bfa5995d9f
 2017-08-30 04:44:59 +00:00
drh
52fb8e1945 Faster memory allocation from lookaside by not trying to keep track of the 
number of outstanding allocations, and rather computing that value only
when requested.

FossilOrigin-Name: a06263f1efd2d45eac88b8d59e8fe8e458670fa3808c795feaa7f247fc36cbe9
 2017-08-29 20:21:12 +00:00
drh
83bebddbd9 Add the --enable-update-limit option to the ./configure script. 
FossilOrigin-Name: 64a8ae68381b7fbb29b659901ca7ce8d50510e4753758d5761f7e41539288cef
 2017-08-28 17:00:12 +00:00
drh
52df6f5e5c Avoid unnecessary mutexes in the pcache1 implementation in the common case 
where no auxiliary page cache memory is configured.

FossilOrigin-Name: 1ba051e34d7512ab5e8fc969c1b5aaaf827b8e6493ba4235895257aca78b500f
 2017-08-28 16:11:05 +00:00
drh
b2a0f75c06 Remove the rarely-used scratch memory allocator. This makes the code smaller, 
faster, and easier to maintain.  In place of the scratch allocator, add the
SQLITE_CONFIG_SMALL_MALLOC configuration option that provides a hint to SQLite
that large memory allocations should be avoided.

FossilOrigin-Name: 54b000246cfb5c7b8adb61a17357ef5a49adddde9e48e8937834d5ba0beb8a6b
 2017-08-28 15:51:35 +00:00
drh
b3c4523c58 Backport changes to shell.c into shell.c.in. 
FossilOrigin-Name: 2348045fbc3fc99e2b46095cc86db99815cd1f9254d30a3b72c2b15c02076a84
 2017-08-28 14:33:27 +00:00
drh
20554381d9 Fix the ".dump", ".schema", and ".fullschema" commands of the command-line 
shell so that they work even if PRAGMA empty_result_callbacks is enabled.
Fix for ticket [02f0f4c54f281].

FossilOrigin-Name: cf0d3715caac9149e65bb4802fd179d0952cfaf9add17ac243c6ca87cbd6e6b7
 2017-08-28 11:12:57 +00:00
drh
f49759bf03 Fix a few over-length source code lines. No functional changes. 
FossilOrigin-Name: 1783c54ce9dcb4b2c4f2a66f6d3315e646b71b54a8899fc32a7bf0f935a21f7f
 2017-08-25 19:51:51 +00:00
drh
36494b8bc6 Size and performance optimization for sqlite3Init(). 
FossilOrigin-Name: 776d91284a891bec64d6f649ff17de898b6ac6f66dd3d2afccc394a012a40c7d
 2017-08-25 15:43:34 +00:00
drh
83e8ca54d1 Small performance optimization in sqlite3WhereBegin(). 
FossilOrigin-Name: 39f708d1e286931365a8992dbe7f900108ff1dad146032a284ad1dec09b11e06
 2017-08-25 13:34:18 +00:00
drh
6034846eb6 Convert a branch made unreachable by [59560d07] into an assert(). 
FossilOrigin-Name: 2738b8db3caa6ce48d27cb5749d27b79241e6f6682b694886f6ef663e5443583
 2017-08-25 13:02:48 +00:00
drh
95b46c85e2 Improve the internal mechanism used to keep track of what kind of syncing 
to do for WAL transaction commits and checkpoint operations. 
Use the checkpoint-style of syncing to sync the header of a new
or restarted WAL file.

FossilOrigin-Name: e8d23afe8478e42779ec1dd602ca2d77d4f3c26c4d54f52112c5aaa928536538
 2017-08-25 11:44:51 +00:00
dan
1c305122a2 Avoid returning duplicate rows in experimental pragmas "pragma_list", 
"module_list" and "function_list".

FossilOrigin-Name: b79cc8dc88c8ae03daff1290fd650b2b0e6f673ec9d83be6a533a57172930190
 2017-08-25 09:17:14 +00:00
drh
daaae7b9d1 Update the mechanism used to keep track of what kind of syncing to do for 
WAL transaction commits and checkpoint operations.  Use the checkpoint-style
of syncing to sync the header of a new or restarted WAL file.

FossilOrigin-Name: bf65dae8d4297c57ac63228ccf0100f9fabf2fb600438c9f2e10a29c4b118168
 2017-08-25 01:14:43 +00:00
drh
9c6e07d2fa Fix an incorrect hyperlink in a comment. 
FossilOrigin-Name: 25292b9a4eb5efc7db551da0b3c9cfd7e79da1594ee14729de44090e188c2b2a
 2017-08-24 20:54:42 +00:00
drh
09e16491f6 Fixes to documentation about SQLITE_OPEN_URI. 
FossilOrigin-Name: 7ec72314d6b66e4969833194fd032f01963bb861a7bb30d060acdb82dc5d62fe
 2017-08-24 15:43:26 +00:00
drh
526740b1b9 Make sure the sqlite3_result_pointer() interface does not leave a VM register 
in an inconsistent state.  Fix for ticket [7486aa54b968e9b5].  Test cases
are in TH3.

FossilOrigin-Name: d2f9230c5c7ad6166e7d2b649f77960fa58b1cb583e529a43882753ab348413c
 2017-08-24 13:55:46 +00:00
drh
87d63c900d Performance optimization to pageFindSlot() in the b-tree layer. 
FossilOrigin-Name: 59560d079fab4b91ec50855cc60349da178209c38fb6dae674ff874ccfc7f5fa
 2017-08-23 23:09:03 +00:00
drh
5e398e4cbd Size and performance optimization to dropCell() and freeSpace(). 
FossilOrigin-Name: bc1ec123ce05c9d16b0942f870381145dc9725764e47806939ff207a73066f4d
 2017-08-23 20:36:06 +00:00
drh
5e27e1dc49 Smaller and faster implementation of the fillInCell() routine. 
FossilOrigin-Name: 77074990edef6c42bdfe7ccce1affc8ed64a86dde3ad4fa50b60ba0a6d851eea
 2017-08-23 14:45:59 +00:00
drh
489a224bea Update documentation to make it clear that SQLITE_SOURCE_ID and 
sqlite3_sourceid() might changes if the source code is edited.

FossilOrigin-Name: e69c0c8770d3cc2fcdc779c6290caf1575644d457326caa00327b9070251d620
 2017-08-22 21:23:02 +00:00
drh
0a02c72e79 Less dramatic changes to the source-id following an edit. Modify the way 
that the amalgamation is constructed to give it the opportunity to detect
changes and modify the source-id.

FossilOrigin-Name: 564c7340a3368501c3da885afde52123ed7f558801f6190cbe6173dfe9704b70
 2017-08-22 21:07:03 +00:00
drh
48b9a6dd6b Modify the SQLITE_SOURCE_ID if the source code has changed in any way since 
the previous check-in.

FossilOrigin-Name: 515d6a8377cc1dc76d2e78e242fe256cbeef1c1217ec35367648ddeeb17007ec
 2017-08-22 19:54:34 +00:00
drh
c9aed7f891 Trying again to get out-of-tree builds to work correctly. 
FossilOrigin-Name: a1b3337e949fc431e19a3d977d07a312bb253ab7fec6811c0221abd514985d55
 2017-08-22 19:49:34 +00:00
drh
a172254742 Attempting to fix the source-id generator so that it works for out-of-tree 
builds.

FossilOrigin-Name: 5a037ac2da7449be3e26c36910ac5d865d7e74d3c25af0a10578c1f92fe2afea
 2017-08-22 19:43:41 +00:00
drh
f39e0ed4de Add the "mksourceid" program to the build process. That program changes 
the SQLITE_SOURCE_ID if the source tree has been modified in any way.

FossilOrigin-Name: d4c05e04f7e1325a3260808ee17252876f678e78bf0cf6569a18a52ff674bd7a
 2017-08-22 19:19:00 +00:00
drh
2e2338101a Fix error tests in seldom-used compile-time branches of the unix backend. 
FossilOrigin-Name: 885c2b44a44f8d054014e4079b2cac8279c11d13206d5b5215189ef75b9c5254
 2017-08-22 15:21:54 +00:00
drh
b40f06c62d Remove an unnecessary conditional. 
FossilOrigin-Name: 56d19f9fd7b01d4ed5c3e7309977b43fedffee168c9760d3e3b7e885790f781e
 2017-08-21 02:20:57 +00:00
drh
b32c18bf42 Minor optimization to sqlite3VdbeMemSetStr(). 
FossilOrigin-Name: 6538ef7b6b56c7a6629a0bb7418910c64c8b2e73af2296a116c073ecf2e0d429
 2017-08-21 02:05:22 +00:00
drh
c84ddf14c5 Space and size optimization to the printf implementation. 
FossilOrigin-Name: d01d2cffefd1cdb52b386e4983599534c0fbbe6aebda186db53200e4b2283f0a
 2017-08-19 20:38:18 +00:00
drh
251866d07c Another size and performance optimization to readDbPage(). This time we 
eliminate some unnecessary local variables.

FossilOrigin-Name: 745bc8decd18d4dc00589474fd3928a3a9f4156d09e05e6f5b8623de6491795a
 2017-08-18 22:30:20 +00:00
drh
56520ab848 Size and performance optimization the readDbPage() routine in the pager. 
FossilOrigin-Name: ca9e1875c3a893321d70a131fc4ffc76d169ad05e0b48b7006f53b6b467db4be
 2017-08-18 21:14:50 +00:00
drh
c68886bb9e For the unix VFS, avoid an unnecessary stat() system call prior to opening 
any file in the common case where there are no unused file descriptors.

FossilOrigin-Name: 3075cfa07489eaf13cb9a2760e2391e79dd73181fe1730fae7bdcd6ad66d2a1f
 2017-08-18 16:09:52 +00:00
drh
0f3f7664f0 Combine the OP_CreateTable and OP_CreateIndex opcodes of the bytecode engine 
into a single OP_CreateBtree opcode.  This simplifies the implementation and
makes the bytecode programs clearer.

FossilOrigin-Name: eb1202b5e43f1f029ad2bdf845509e7f31361e4dc189943e5e2bd4462e2ef3f3
 2017-08-18 14:34:28 +00:00
dan
62f6f51ae1 Only use indexes on expressions to optimize ORDER BY and GROUP BY if the 
collation sequence matches. Possible fix for [e20dd54a].

FossilOrigin-Name: 37e1900880b70be6802eaf43b0e568fda709a1dd6083d8be11e5a7a7d1fda41a
 2017-08-18 08:29:37 +00:00
drh
ceb4b1dbdd Use the __builtin_clzll() function of gcc to improve the performance and 
reduce the size of the sqlite3LogEst() routine.

FossilOrigin-Name: a42a438cbbd721765ca55e71c464552dbaa494050cf472593599b8c7f0249516
 2017-08-17 20:53:07 +00:00
drh
dceed86d07 Small optimization in the Expr tree walker. 
FossilOrigin-Name: 264a5e1b75ee073bd019483e289c3d8d79abcf5a765435be23ac3c21b1db8246
 2017-08-17 19:23:16 +00:00
drh
6f7fbcf0bb Size optimization in the authorizer error message generation logic. 
FossilOrigin-Name: 0367a4d58682a64d7ed4c5a4b4377899e22432851587c649d419efb6d7bac250
 2017-08-17 18:54:27 +00:00
drh
efaffb64fd In sqlite3ViewGetColumnNames(), return the number of errors, not an error code. 
FossilOrigin-Name: f13682ea2350ba366026a4a58e59591af378c496b92da60803c4c642c3bfc8de
 2017-08-17 18:23:46 +00:00
drh
6362bbe68d The RTREE extension should return SQLITE_CORRUPT_VTAB, not just SQLITE_CORRUPT 
when it encounters incorrectly formatted shadow tables.

FossilOrigin-Name: 0712f057ef3dcd907984dda30f6d961a29b61c1d2b25627028c4e227ec85dbba
 2017-08-17 18:17:24 +00:00
drh
967f8f9e07 Remove an unnecessary branch from the [be436a7f4587ce517ddc] fix. 
FossilOrigin-Name: fb6ca99b88c67414eab425e2b4ddb6a5e2fd48a6b2cd96a34627c86a5b568c9b
 2017-08-17 14:47:56 +00:00
dan
865c3c58ab Add test cases for ticket [be436a7f4587ce517] using virtual table modules fts5 
and rtree.

FossilOrigin-Name: 2101b4208787d297788e05f2bd82d4a9aff26e2237a7016ac857a52fb5252ce0
 2017-08-17 14:12:16 +00:00
drh
dc6b41ed47 Defer schema resets when the query planner is running. 
Proposed fix for ticket [be436a7f4587ce517].

FossilOrigin-Name: a7bc7752ba0266684f5317e424a4ee9add4af002272082183519e708ab9ffc79
 2017-08-17 02:26:35 +00:00
drh
fe0cf7a18c Avoid a test for CURTYPE_BTREE in sqlite3VdbeCursorMoveto() in order to reduce 
the size and improve the performance of OP_Column.

FossilOrigin-Name: f078deb25149b7b1881b7f3374b343d0677e82336d8fdd7f1cdd06d926b5dd57
 2017-08-16 19:20:20 +00:00
drh
1f613c4df3 Remove an unnecessary local variable from OP_Column, for a small size 
reduction and performance increase.

FossilOrigin-Name: 39543903282409ad3f139f8a0bb376661e7595a33af4f647945b1513a028ccb4
 2017-08-16 14:16:19 +00:00
drh
95b225a46d Performance improvement in the OP_Column opcode. 
FossilOrigin-Name: dc98a92f32511ee322b0207bd286e967248a8e59b418f11168eb31e34b0fa0fa
 2017-08-16 11:04:22 +00:00