c3da667b25
Modify the documentation for sqlite3_changes() to make it more testable. Add tests and minor fixes for the same.
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FossilOrigin-Name: 41cdd0c422d61533a94870cb5ad094682956d472
2014-10-28 18:24:16 +00:00
f526dcad29
Three small optimizations to vdbeaux.c.
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FossilOrigin-Name: 04892f8ba6c55cec4fe37bfe59b6349fd2a40698
2014-10-13 17:42:05 +00:00
c22284f4b3
Reduce the CPU load imposed by sqlit3VdbeCursorMoveto() by factoring out
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some of its functions and by avoiding unnecessary calls.
FossilOrigin-Name: c2799aece17d347c64217a0e407bb10e50c184a3
2014-10-13 16:02:20 +00:00
b53a5a9e50
Remove the VdbeCursor.lastRowid cache of the current rowid, since maintaining
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the correct cache value uses more CPU cycles than just recomputing the rowid
on the occasions when it is actually needed. Replace it with the
VdbeCursor.aOffset field which used to be computed from VdbeCursor.aType
when needed. Saves 100 bytes of code space and runs 0.2% faster.
FossilOrigin-Name: 91384a7d727ef0f285cd430e829ba9f3852db50e
2014-10-12 22:37:22 +00:00
4fa4a54f7e
Remove the SQLITE_ENABLE_TREE_EXPLAIN compile-time option. Add alternative
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debugging display routines: sqlite3TreeViewExpr(), sqlite3TreeViewExprList(),
and sqlite3TreeViewSelect().
FossilOrigin-Name: 4ff51325d6b41d0c59e303b573700ec80c51d216
2014-09-30 12:33:33 +00:00
39c4b82b5a
Fix the header comment in sqlite3VdbeDeletePriorOpcode(). No changes to
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code.
FossilOrigin-Name: 7fb1626866c2f8dad84c7e6184824be3efd71ca2
2014-09-29 15:42:01 +00:00
069c23c947
Small size reduction and performance increase for releaseMemArray().
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FossilOrigin-Name: 24cd32d681df58f687b2afbe4b13d579e3efdd4b
2014-09-19 16:13:12 +00:00
7abda85607
Updates to comments. No code changes.
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FossilOrigin-Name: 9b42c3da6b2593a10b8fe4b2fcc3d650132625c1
2014-09-19 16:02:06 +00:00
322f2852f2
Add the sqlite3VdbeMemClearAndResize() interface to be used in place of
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sqlite3VdbeMemGrow().
FossilOrigin-Name: 5b9b8987797abf7c68d2c3154f6657be9b8b1c8f
2014-09-19 00:43:39 +00:00
17bcb10299
Add the Mem.szMalloc element to the Mem object and use it to keep track of
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the size of the Mem.zMalloc allocation.
FossilOrigin-Name: 9c09ac353df6041808cace41880f4729ee73f5e1
2014-09-18 21:25:33 +00:00
74eaba4de2
Merge the Mem.r value into the MemValue union as Mem.u.r. Hence, a Mem can
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now store an integer or a real but not both at the same time. Strings are
still stored in a separate element Mem.z, for now.
FossilOrigin-Name: 4c8c89d7e62aecfe2eb735f7bb114aed6b452847
2014-09-18 17:52:15 +00:00
d3b74200a8
In the Mem object, stop requiring that Mem.xDel be NULL when the MEM_Dyn
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bit is clear. Also reduce the amount of initialization of Mem objects.
All for a small size reduction and performance increase.
FossilOrigin-Name: fdddb477c89dabb9f7bf2d5ccb32534868df3a03
2014-09-17 16:41:15 +00:00
8740a60016
Make sure registers are cleared properly prior to being used to store
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the result of an OP_Column operator.
FossilOrigin-Name: 78fb8838d80b229418c347c63579989432e1af7d
2014-09-16 20:05:21 +00:00
897a2d50f2
Remove an unused parameter from sqlite3VdbeIdxRowid(). This is cosmetic
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only as the C-compiler optimizers were already omitting this parameter on
amalgamation builds.
FossilOrigin-Name: a10a6bba4963761b490b7243b388dcc920c4cfed
2014-09-16 14:55:08 +00:00
75179ded97
Reduce the number of arguments to RecordCompare functions from 4 to 3,
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resulting in a small performance increase.
FossilOrigin-Name: 8239c35aedd583af79505378bb7dbb78346a3f45
2014-09-16 14:37:35 +00:00
035e563bf6
Reorder the elements of the Mem object for a small size reduction and
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performance improvement.
FossilOrigin-Name: 0be3019ed794c10de67dfd645ceea7d45815bc4b
2014-09-16 14:16:31 +00:00
7f4b19f170
Changes to sqlite3VdbeRecordUnpack() to make it slightly smaller and faster.
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FossilOrigin-Name: 8fb90da77ce0e662c1ef1ae0d854e5164494b7af
2014-09-16 13:30:05 +00:00
982ff72f0f
Performance improvement to the sqlite3MemCompare() routine by factoring out
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sqlite3BlobCompare().
FossilOrigin-Name: 20ed2321b09ba076e50f9fc2f42c135b25746d72
2014-09-16 03:24:43 +00:00
60ec914c74
Fix typos in comments. No code changes.
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FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
2014-09-06 16:39:46 +00:00
4d015c6902
Merge the recent performance enhancements implemented on trunk into the
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threads branch.
FossilOrigin-Name: dfdc900f5d1a31ee5c5f35a630c4a8253e69093b
2014-08-25 13:27:02 +00:00
6848dad894
Another performance tweak: Split the sqlite3BtreeCursorHasMoved() routine
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into two with the second routine named sqlite3BtreeCursorRestore(). The first
now only reports whether or not the cursor has moved and the second tries to
restore the cursor. This allows the sqlite3VdbeCursorMoveto() routine to be
refactored to avoid stack pointer movements, for a noticable performance gain.
FossilOrigin-Name: ce123b5c592556a8cd38b01fcc91ba76231d3098
2014-08-22 23:33:03 +00:00
13f40da31d
Split the sqlite3Error() routine into sqlite3Error() and
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sqlite3ErrorWithMsg(), for a slight size reduction and performance increase.
FossilOrigin-Name: cf561d1f0bb60b3d638632d20bd686dda4fa4a04
2014-08-22 18:00:11 +00:00
8932becbef
Handle the 4-byte integer case in the stackless routine.
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FossilOrigin-Name: 3f55484e81000c75e231f5580632a68e782ded4f
2014-08-22 14:56:13 +00:00
14a924a5cd
Get the sqlite3VdbeSerialGet() routine to run faster by avoiding the use
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of local variables.
FossilOrigin-Name: 8267d82174099e548a4f78d06af0c6324c89b83d
2014-08-22 14:34:05 +00:00
3f5b199eb5
Change a while-loop into a do-loop in sqlite3VdbeSerialPut() for a small
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size reduction and performance improvement.
FossilOrigin-Name: 750bb0a0960606ab24037e0992e9f7a17524cc3e
2014-08-22 13:22:32 +00:00
83b25d32d7
Merge the pre-3.8.6 changes into the threads branch.
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FossilOrigin-Name: a608fd1d52606a009c3acc7f1d184b86a7df3c82
2014-08-14 14:02:48 +00:00
81e069eee5
Improve the comments associated with SQLITE_TEST_REALLOC_STRESS and add
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an extra assert() to prove an assumption.
FossilOrigin-Name: 35c454616321d480ecbc4efdf6869bbcdf0d3aa2
2014-08-12 14:29:20 +00:00
76ccd89d13
If SQLITE_TEST_REALLOC_STRESS is defined, extend the op-code array used by virtual-machine programs by one element at a time, instead of doubling its size with each realloc().
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FossilOrigin-Name: 4c291827224b84487a38e7ccba2edabc0f15b5ba
2014-08-12 13:38:52 +00:00
3c19bbea0a
The SQLITE_IOERR_BLOCKED extended error code is not longer used, so remove
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assert() statements and documentation for that error code. Also make other
documentation improvements.
FossilOrigin-Name: 36b7c5cefcad6bad044806092593c84876fee8bc
2014-08-08 15:38:11 +00:00
966d9f267f
Merge recent trunk changes into the threads branch.
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FossilOrigin-Name: 163c247bd8280ab14fe577329c631c8bd884707f
2014-07-28 15:01:37 +00:00
eac5bd7870
Try to fix harmless compiler warnings reported by Fortify.
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FossilOrigin-Name: e0fa6fdc14ac5458f9200cbae124f8025ea534ea
2014-07-25 21:35:39 +00:00
2bd2c29a95
Merge all recent trunk changes into the threads branch.
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FossilOrigin-Name: 770685892c8f09b9cddb2fbb2877cfb291e19425
2014-07-24 16:54:28 +00:00
a7ab6d8165
Allow the SQLITE_MAX_ATTACHED compile-time option to be larger than 62. The
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default limit on the number of attached databases remains 10.
FossilOrigin-Name: 1a817ae2f35fa0396148dda2782cd4f919bf5c6f
2014-07-21 15:44:39 +00:00
857745c089
Update the sqlite3_stmt_busy() function so that it correctly returns true for "ROLLBACK" statements that have been stepped but not yet reset.
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FossilOrigin-Name: 61cee3c0678f5abd9131a29ab946a5e71f55643e
2014-07-19 17:57:10 +00:00
6614181610
Merge the latest trunk changes into the threads branch.
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FossilOrigin-Name: ae23a65eb1547fbe8b86ab71477071990a22d31d
2014-06-30 20:25:03 +00:00
6696ba3eab
Add an OOM fault injection test for the new code on this branch.
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FossilOrigin-Name: c96de490ac77dd23c108004b95152cce4922fe27
2014-06-28 19:06:49 +00:00
84de690b4f
Do not run the vdbeRecordCompareDebug() assert if pKeyInfo->db is NULL since
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in that case there would be no way to check for a memory allocation failure.
FossilOrigin-Name: 63ed2d6acb82be8a74dbf6a61388be6da6113985
2014-05-02 18:46:52 +00:00
2ae56f50ce
Merge orderby-planning with this branch.
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FossilOrigin-Name: d9549de31741239ece060e448b592ce8fc5b8042
2014-05-02 18:05:38 +00:00
79211e194d
Simplify assert() statements used to verify correct operation of
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record comparison routines.
FossilOrigin-Name: 3300d62dcbe74842cf86ca436959fe4e77a89f84
2014-05-02 17:33:16 +00:00
a7bf23c6b5
Fix some broken asserts in btree.c and vdbeaux.c that may fail following an OOM error.
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FossilOrigin-Name: e15f47064bef431c0afd8bf93eb4e160c23ad562
2014-05-02 17:12:41 +00:00
e9af1894e3
Merge recent trunk changes into the threads branch.
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FossilOrigin-Name: 8729aa3e3ed1da2e15408ef8705cbe185cd2a5ac
2014-04-18 12:38:54 +00:00
d249090450
Remove the unused second argument from sqlite3ExprCachePop(). Add an
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ALWAYS() on an always-true conditional in sqlite3VdbeResolveLabel().
FossilOrigin-Name: ab23abf392175d3e256ff619b13abbbe732a49ed
2014-04-13 19:28:15 +00:00
38fdead890
Fix a problem with OOM handling in the sorter code.
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FossilOrigin-Name: 59cd5229e2b5be5272cf57c7e7d09e97d16a5425
2014-04-01 10:19:02 +00:00
a1f7c0a21c
Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter
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database corruption, they will set the UnpackedRecord.isCorrupt field and
return 0. The sqlite3BtreeMovetoUnpacked() routine detects this and returns
SQLITE_CORRUPT, causing the corruption to be reported back to the top-level.
FossilOrigin-Name: 7fa85eaaaf6d211378620d728a759fdfe30a15b0
2014-03-28 03:12:48 +00:00
182ea4e324
Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to
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avoid a potential buffer overread.
FossilOrigin-Name: 28ddecff044dbc2dff50a7d8406ab67dfe06587f
2014-03-26 14:51:07 +00:00
e2ac506704
Add an assert() and a comment to clarify the operation of the
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vdbeRecordCompareInt() routine.
FossilOrigin-Name: 851abdb8fd9b5a8a6ce21db53d30dbac3c430cc7
2014-03-26 12:02:38 +00:00
86dd3716b9
Detect when a VdbeCursor is still pointing at a valid row but that row has
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moved, and invalidated the return from prior sqlite3BtreeDataFetch() or
sqlite3BtreeKeyFetch() calls.
FossilOrigin-Name: e6798871ce94961135762669af418cd78540c121
2014-03-25 11:00:21 +00:00
079a307259
First attempt at getting block-sort to work. This is an incremental check-in.
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There are many problems still to be worked out.
FossilOrigin-Name: 59742dd4c5259883850044d0938248b009ebd045
2014-03-19 14:10:55 +00:00
b6e8fd105c
Fix some incorrect comments and typos in comments. Add testcase() macros
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to some of the new record comparison code.
FossilOrigin-Name: b83cfe899d84fe9d61540e9984321ca30401638c
2014-03-06 01:56:33 +00:00
afc14f72ef
Experimental simplification of memory flags/type handling.
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FossilOrigin-Name: bac2820e13a79d91d0f8938c643134a9d6900327
2014-03-05 01:29:18 +00:00
dan