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9370 Commits

Author SHA1 Message Date
mistachkin
0fe5f95c7f Remove 'const' from a variable that might actually be written when an OOM error occurs. Also, fix a couple MSVC/Win32 compiler warnings. 
FossilOrigin-Name: 3035dc1c7398791d550f4c02774ef7f961b4bb02
 2011-09-14 18:19:08 +00:00
drh
244b632cf7 Remove unused parameters from internal routines in vdbesort.c. This is 
an additional simplification made possible by recent optimizations.

FossilOrigin-Name: a1f3aeeb0988c848d40ce8f6da6e902935a997e2
 2011-09-14 13:41:40 +00:00
drh
59ebc99161 Remove code from vdbesort.c that was made unreachable by the recent 
sqlite3VdbeRecordUnpack() optimizations.

FossilOrigin-Name: 607aba6cd7020973200fa376cf8df55360165266
 2011-09-14 13:23:21 +00:00
dan
f9556a1a3d Allocate the correct size for the output buffer in fts3DoclistOrMerge(). Fix for [56be976859]. 
FossilOrigin-Name: 07788c0f7f3740c1c280f6ce4dc68401c30bae6e
 2011-09-13 19:08:43 +00:00
mistachkin
649591af23 Cleanup pdb/ilk files generated by the MSVC makefile. 
FossilOrigin-Name: a9db247b752bcda0131b8f01c6f0182f3101d154
 2011-09-11 10:14:37 +00:00
dan
42acb3e597 Fix a minor performance regression in btreeMoveto(). 
FossilOrigin-Name: d0712dfb24867a807c9cddcc12bd0aebe1d3e085
 2011-09-05 20:16:38 +00:00
dan
03e9cfc223 Refactor the sqlite3VdbeRecordUnpack() interface to better accommodate the vdbesort.c module. 
FossilOrigin-Name: f115b2303509c678dbe83b2fa3d9c40d82882813
 2011-09-05 14:20:27 +00:00
drh
19c88c1a99 Fix a compiler warning about an unused parameter in the merge-sort code. 
FossilOrigin-Name: 6b657ae75035eb10b0ad640998d3c9eadfdffa6e
 2011-09-04 01:27:00 +00:00
drh
c2bb3282f1 Improve the testability of the merge-sort logic. 
FossilOrigin-Name: b5179baf87aa00ed5cecbdcaa65bee10e112a9e9
 2011-09-04 01:11:46 +00:00
drh
d40807ddef Performance improvements to the external merge-sorter. Keep content on an 
in-memory linked lists rather than an ephemeral table prior to spilling to
disk.  Use the external merge-sorter to implement ORDER BY and GROUP BY
in addition to CREATE INDEX.

FossilOrigin-Name: 4c43e8b2d2c1d8dcba3cd1c3f2ec4e19ab419430
 2011-09-03 17:07:26 +00:00
drh
04a962fe02 Simplification and performance tweaks in vdbeSorterMerge(). 
FossilOrigin-Name: 99e34bdce4ccca15b79159b03b96787e7a7ff85b
 2011-09-03 16:42:38 +00:00
dan
8b1ea14f8c Reduce the number of VdbeRecordUnpack() calls made in vdbesort.c. 
FossilOrigin-Name: 666c2c3cff51dac2ba5689b75705d99c3705673b
 2011-09-03 14:36:13 +00:00
drh
ca892a7252 The build works again with -DSQLITE_OMIT_MERGE_SORT. The merge-sorter now 
avoids spilling to disk (letting the in-memory linked list grow without
bound) if PRAGMA temp_store=3.

FossilOrigin-Name: 68e26c4487696d194ee85370380e4b0e56d206ee
 2011-09-03 00:17:51 +00:00
drh
34163c6831 Remove some dead code. Fix a faulty assert(). Improve some variable names. 
FossilOrigin-Name: a9a64592cf88580cb254fb0aac65a2f2085976ec
 2011-09-02 21:42:33 +00:00
dan
7733a4db4b Combine two malloc calls in vdbesort.c. 
FossilOrigin-Name: cf48ad8353e28339d00f448bb729e10a7f2aad72
 2011-09-02 18:03:16 +00:00
dan
7f72114547 Reduce the number of malloc() calls made when creating an index on more than 2 columns. 
FossilOrigin-Name: 065b0c9858da0ebb41722f3c56bdaf62f28b2f2c
 2011-09-02 15:41:33 +00:00
mistachkin
9747a6063b Remove unused local variable. 
FossilOrigin-Name: 61bda876af6df3170263d41d2933168305de58d2
 2011-09-02 15:08:28 +00:00
dan
9fed558df9 If all data being sorted fits in memory, avoid writing any data out to temporary files in vdbesort.c. 
FossilOrigin-Name: 71075673c625f243969c3f34c73f28f378924007
 2011-09-02 11:45:31 +00:00
dan
5134d1357e Instead of a temporary b-tree, use a linked-list and merge-sort to sort records in main memory in vdbesort.c. 
FossilOrigin-Name: 7769fb988d9be0f2d8129aaac19620ac88f9b4a6
 2011-09-02 10:31:11 +00:00
drh
1c9d835d49 Use OP_SorterOpen instead of OP_OpenEphemeral to implement GROUP BY. 
FossilOrigin-Name: ebf819aaa555bd79fddfc0a6f9827a2539095d6c
 2011-09-01 16:01:27 +00:00
drh
c6aff30ca4 Experimental code-generator changes to utilize new opcodes for sorting. 
FossilOrigin-Name: bab2e560f6cb989c83a96aad60f666960ede7abe
 2011-09-01 15:32:47 +00:00
drh
96862072b8 Avoid using uninitialized variables after failures in the merge sort code. 
FossilOrigin-Name: 2869ed28299b1c9f355ecc24635830f7f1249126
 2011-08-31 23:57:22 +00:00
drh
20f8e13b44 Formerly, we enabled fdatasync() on linux only. But now we learn that 
fdatasync() is not supported on Android.  So we disable fdatasync() on
Linux too.  It can be reenabled at compile-time for those who really need it.

FossilOrigin-Name: 70b5b309568ac55565558d5456aca1e431cfd26b
 2011-08-31 21:01:55 +00:00
drh
5a201fb41d Add the SQLITE_MAX_SCHEMA_RETRY compile-time option to the set of options 
understood by "PRAGMA compile_options;" and by the 
"sqlite_compileoption_used()" function.

FossilOrigin-Name: 1b124af40a8fa4d3094f24a9213096b66411b8f9
 2011-08-31 20:47:50 +00:00
drh
1b1e8a8be6 The server1.test script should only run if mutexes are functional. 
Fix to the #ifdef change of check-in [9e6a4c1473].

FossilOrigin-Name: 6489848590db7088d965b7fa7feabc8c66e2e2b1
 2011-08-31 19:40:58 +00:00
drh
fd53231c85 Always include the unixShm.id field, even when not debugging. 
FossilOrigin-Name: 07803476206b8cde60ccc320b9ccdc0d48a41d65
 2011-08-31 18:35:34 +00:00
drh
7730c4457e Only create the sqlite3OSTrace global variable if compiling with 
SQLITE_TEST.

FossilOrigin-Name: 9e6a4c1473a4cb061a88f6a437a2828368b3ddc8
 2011-08-31 18:04:54 +00:00
drh
4515a45b8c Backslash escaping is not working right in tostr.awk on the latest ubuntu. 
The easiest fix is to simply not use any backslashes in the spaceanal.tcl
script.

FossilOrigin-Name: df550066657cb41bad34ac8e722b8148ab7eabfb
 2011-08-31 17:46:50 +00:00
drh
e42a9b431b Add checks to make sure cells in corrupt database files 
do not overflow a page when doing autovacuum.
Problem detected by valgrind.

FossilOrigin-Name: d0b347b412376d22e9f0770ac083dafb5e480dd0
 2011-08-31 13:27:19 +00:00
drh
0ee469c9a8 Enable the thread test logic to work with the SQLITE_HAS_CODEC compile-time 
option.

FossilOrigin-Name: 20ddfb4780b87953718f3a8e67b777dcff0e3b5e
 2011-08-30 19:52:32 +00:00
drh
307ff30b54 Change the build process so that it does not require the unix "sort" 
command.  This avoids confusion between ms-sort and mingw-sort on
windows systems.

FossilOrigin-Name: f1bd5bbae505068d24bfd9cc6bab6a8b8940bad6
 2011-08-30 01:29:04 +00:00
mistachkin
d589a5444b Make sure SQLITE_FCNTL_SIZE_HINT a no-op if the chunk size is not greater than zero. 
FossilOrigin-Name: 88b763e8d73fafa1538b08af28b1c8b723b39c61
 2011-08-30 01:23:34 +00:00
drh
e0a59cf0e1 Fix a total unimportant file descriptor leak in lemon. This is to silence 
warning messages.

FossilOrigin-Name: e95cf2c576dda656c0f31eeec3d98e911b9003a1
 2011-08-30 00:58:58 +00:00
drh
bc2be0c770 Fix a buffer overrun in test logic. No impact on the core SQLite. 
FossilOrigin-Name: 49cd60e38bd8df9d736ced95e0ace6efea95ca7d
 2011-08-30 00:53:50 +00:00
dan
54bbe7f15e Fix a broken assert() statement in select.c. 
FossilOrigin-Name: ad78ef2b3a20e3c3191fba232cbae70656210cf5
 2011-08-29 18:24:27 +00:00
drh
2f7820d8b5 Back out [05c9832e5f6eb] since it was causing a performance regression with 
no obvious benefit.

FossilOrigin-Name: 639cc85a911454bffdcccb33f2976c683953ae64
 2011-08-29 11:56:14 +00:00
drh
d4b708f671 Merge performance enhancements into trunk. 
FossilOrigin-Name: 5a00d24b279424d257781ec3f1227e72a5d56f57
 2011-08-29 03:08:47 +00:00
drh
2d36eb43a4 About a 1% overall performance improvement by using a macro to avoid 
no-op calls to sqlite3MemReleaseExternal().

FossilOrigin-Name: ff71d20a9ed129bd1785a3f7a777ce62098735b7
 2011-08-29 02:49:41 +00:00
drh
5a077b741f Small performance improvement to OP_Column. 
FossilOrigin-Name: b6b73a747ad8d0f026074e41c2a4adc529ec2674
 2011-08-29 02:16:18 +00:00
drh
e6f43fc4f8 About a 3% improvement in the performance of OP_Column. 
FossilOrigin-Name: edff9d4a995095e555fcc9aec4c56f4bcaa1557e
 2011-08-28 02:15:34 +00:00
drh
4a6f3aabca Correctly display P4_ADVANCE values on opcode traces. Mark an always-taken 
branch in OP_Column as such.

FossilOrigin-Name: 087dc96086fe4e45da93ab6a0d5dda34c932ce97
 2011-08-28 00:19:26 +00:00
dan
a205a486d2 Experimental changes to improve the performance of OP_Next. 
FossilOrigin-Name: 1a249845251199c00817893add300a1a654b4df9
 2011-08-27 18:48:57 +00:00
drh
3d4435b234 Fix several harmless compiler warnings and a documentation bug. 
FossilOrigin-Name: 5454d0fe227b7c1f0e7715b6c08f97019628fc4c
 2011-08-26 20:55:50 +00:00
mistachkin
25d054fabd Update compiler error message regarding the choice of memory allocator defines. 
FossilOrigin-Name: 1dada5158215d1816edb69ff2610f9d2259ce19d
 2011-08-26 11:25:02 +00:00
mistachkin
d2f496aab5 Merge Win32 native heap support into trunk. 
FossilOrigin-Name: 5238a74987507f27af4080e2842f53e049b5b111
 2011-08-26 11:18:44 +00:00
mistachkin
4d60be5e30 In the MSVC makefile, allow symbols to be enabled without NDEBUG defined. Also, for the win32lock test, make sure the database is closed prior to shutdown. 
FossilOrigin-Name: 5ed7633d41b99929309a7e13d37375a4fdae43b3
 2011-08-26 05:40:31 +00:00
mistachkin
7da32b5841 Disable checking the winMemData structure signature when compiled with NDEBUG. 
FossilOrigin-Name: 50edc2f9141bd13277119afd129387029ebe5c01
 2011-08-26 01:45:50 +00:00
mistachkin
155892cccc Allow the Win32 native heap flags to be overridden at compile-time. 
FossilOrigin-Name: 1c2ecec8e7320bc5b532b3107005fb7f0370f25c
 2011-08-26 01:32:24 +00:00
drh
2a5d9908f9 Create a new pager type, PAGER_SORTER, for use in the external merge sort. 
Such pagers are always held in memory but do report when they are under
memory pressure by calling pagerStress.

FossilOrigin-Name: c71d73201d950355862dd8d5de142c9673888755
 2011-08-26 00:34:45 +00:00
drh
c5dbffe741 Reorder some of the branches in backup.c in order to make the code 
easier to test.

FossilOrigin-Name: 2c443d47ecee7b43a89f0a4bf299c46c66e3f80d
 2011-08-25 20:18:47 +00:00