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08f901b0086444209c4e37cbfc223cec3498d227
Commit Graph

5232 Commits

Author SHA1 Message Date
dan
2dd3cdcfab Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. 
FossilOrigin-Name: dee204092421a239f9f60ab83c3a5b3e24d1baea
 2014-04-26 20:21:14 +00:00
drh
1f8bb4b0a8 Update requirements marks to fix typos in the requirements text. 
No changes to code.

FossilOrigin-Name: f5a263658187250044afc1a74000e6f6962733ca
 2014-04-26 19:23:14 +00:00
drh
453e0261df Allow the xfer optimization to proceed if the DEFAULT on the very first 
column of the two tables is different.  This is a refinement of the
fix for ticket [f67b41381a].

FossilOrigin-Name: 349f483499dd685a8da94923b6bd810a52e5e236
 2014-04-26 17:52:08 +00:00
dan
9940e2aa45 Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. 
FossilOrigin-Name: f8c4c495e6de1f124d205383d4bafa46accbff5c
 2014-04-26 14:07:57 +00:00
dan
8ad1d8ba38 If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. 
FossilOrigin-Name: c51efaa5d29ee0a91b9e6a83a8dd82530670811a
 2014-04-25 20:22:45 +00:00
drh
b79c718f1a Add test cases to ensure correct operation of joins with a virtual table 
that include DISTINCT and ORDER BY clauses.  Verification for ticket
[388d01d4bb8f9].

FossilOrigin-Name: 5ada136f43ce744ae8c349eff39838eb44611b6e
 2014-04-25 17:37:16 +00:00
dan
aa9933c115 Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. 
FossilOrigin-Name: c5a6ec0a880652dc8f4593d9f7acd58ddc3dc5f3
 2014-04-24 20:04:49 +00:00
drh
0ff435a782 Reopen the orderby-planning branch and merge in the latest trunk enhancements 
and fixes.

FossilOrigin-Name: 6077ddcd93318e24b9756adaaf293ba9fb3cedf7
 2014-04-24 15:06:25 +00:00
drh
9e0ed8d4ec Merge all recent trunk changes into the threads branch. 
FossilOrigin-Name: e2c9f71a451e44040624b9f255b4510743513019
 2014-04-23 12:57:55 +00:00
drh
f0582f43dd Comment tweaks on the test case for the [b75a9ca6b0] bug fix. 
FossilOrigin-Name: 65d2544af9adc1e2f1d193e57f8be0422fb0d5eb
 2014-04-21 13:36:54 +00:00
dan
374cd78c1d Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. 
FossilOrigin-Name: de9a490f594183f337a2ec9e0f87792eac83548b
 2014-04-21 13:21:56 +00:00
drh
46a06bbe47 Add to speedtest1.c the --threads option for setting the 
SQLITE_CONFIG_WORKER_THREADS configuration.

FossilOrigin-Name: 5fce40c44aacf883df2e8e9472c399a6e92197b3
 2014-04-18 13:57:39 +00:00
drh
e9af1894e3 Merge recent trunk changes into the threads branch. 
FossilOrigin-Name: 8729aa3e3ed1da2e15408ef8705cbe185cd2a5ac
 2014-04-18 12:38:54 +00:00
dan
22ace89179 Fix some problems to do with OOM conditions in vdbesort.c. Some problems remain. 
FossilOrigin-Name: 2f94f9ce9bf11f1599bbc640b3fc8c15da588416
 2014-04-15 20:52:27 +00:00
drh
65b9ac5224 Make sure the undocumented sqlite_rename_parent() function does not 
crash even if it is invoked with NULL arguments.
Ticket [264b970c4379fd4b94]

FossilOrigin-Name: c6fa8d0d82805be230f672eabccdfa5680d4ddfd
 2014-04-14 19:48:25 +00:00
drh
87744513e7 Make sure column cache elements are cleared correctly when jumping over 
code for key generation in a partial index. 
Fix for ticket [2ea3e9fe6379fc3f6].

FossilOrigin-Name: 3122b8364082be783821da01d4af2af6a9586327
 2014-04-13 19:15:49 +00:00
dan
4be4c406fa Avoid having the sorter merge too many PMAs at a time when incrementally merging data following a SorterRewind(). 
FossilOrigin-Name: 98bf0307b121b0776a7170108cc8d3f948a7ebfe
 2014-04-11 19:43:07 +00:00
drh
d83cad235a Modify the OR-clause handling so that it can safely deal with OR-clause 
with 17 or more terms.  Fix for ticket [10fb063b1179be53ea0b53bb].

FossilOrigin-Name: a67b5312f63909737c052fe58ab5772d45530d49
 2014-04-10 02:24:48 +00:00
dan
d30ab3d9dd Experimental multi-threaded sorting changes to allow the sorter to begin returning items to the VDBE before all data is sorted. 
FossilOrigin-Name: f9d5e09afaf64d68a0e461c1c2f38179bcea4b1f
 2014-04-09 20:04:17 +00:00
drh
48e080b26c Performance improvements when reading large blobs, especially if 
SQLITE_DIRECT_OVERFLOW_READ is defined.

FossilOrigin-Name: 2312eb6a9eb31051db4e0baf19e033ba39adc7b1
 2014-04-04 18:49:19 +00:00
drh
85462ed939 Merge the latest trunk changes into the threads branch. 
FossilOrigin-Name: 39ac79cffe716f88af0871bdd206231b6a6511ff
 2014-04-04 18:37:36 +00:00
drh
853546d047 Merge changes to the query planner that strive to ensure that any index 
usage that is a proper subset of some other index usage always has a slightly
higher cost.

FossilOrigin-Name: 683dd379a293b2f330e1e4cd746f190527fe48ee
 2014-04-04 18:20:35 +00:00
drh
1fb6a11072 Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode 
with ATTACH-ed databases.

FossilOrigin-Name: e54330b43127e46fc6494748cbb353a6fc91cfd7
 2014-04-04 14:12:52 +00:00
dan
8daefc2af0 Add test file sort3.test, which should have been part of commit [9d3351b8d7]. 
FossilOrigin-Name: dceed2c803fca23c83c02c448d5ae7c4698efee1
 2014-04-04 07:52:44 +00:00
drh
1aca5caa88 Merge all recent changes from trunk. 
FossilOrigin-Name: a0910079adde95245680dee59b43613b60903f10
 2014-04-03 16:42:21 +00:00
drh
c438df1be0 Use OP_Copy instead of OP_SCopy when moving results out of a subquery, 
to prevent the subquery results from changing out from under the outer
query.  Fix for ticket [1e64dd782a126f48d78].

FossilOrigin-Name: d5513dfa23baa0b0a095aaf17d19aacd30dcef61
 2014-04-03 16:29:31 +00:00
dan
8930c2ab0c Fix an integer overflow problem in the sorter. 
FossilOrigin-Name: 9d3351b8d713232133dad149c73fb2a27c72abb1
 2014-04-03 16:25:29 +00:00
dan
dd95d30f82 Fix some problems with OOM handling in vdbesort.c. 
FossilOrigin-Name: 47e702bd8392bc50c4edaf6a2c8c499af87b520e
 2014-04-02 15:15:25 +00:00
dan
fad9f9a8a6 When sorting data for a CREATE INDEX statement in single-threaded mode, assume that keys are delivered to the sorter in primary key order. Also fix various comments that had fallen out of date. 
FossilOrigin-Name: 821d1ac4504243fa13b9e3c0d56361ad9fb80d78
 2014-04-01 18:41:51 +00:00
dan
578e1ca8d7 Even if compile time option SQLITE_MAX_WORKER_THREADS is set to one or greater, set the default number of worker threads to zero. Distribute data more evenly between threads in sqlite3VdbeSorterWrite() to improve performance when sorting large amounts of data. Add new test file sort2.test. 
FossilOrigin-Name: 643c86a056168e39fcb7f39b8a72731f1eb246db
 2014-04-01 15:38:44 +00:00
dan
38fdead890 Fix a problem with OOM handling in the sorter code. 
FossilOrigin-Name: 59cd5229e2b5be5272cf57c7e7d09e97d16a5425
 2014-04-01 10:19:02 +00:00
drh
e4529c5724 Merge in the latest changes and fixes from trunk. 
FossilOrigin-Name: f6211540c9d66a08dc580dd733e4f4a98968ae30
 2014-03-31 22:03:32 +00:00
drh
3fb183d2f7 Also make sure an index that is a proper subset of some other index has a 
higher cost than that other index.  Add test cases.

FossilOrigin-Name: b7830d232b073a197aa1092e78cb24e88cb10fd3
 2014-03-31 19:49:00 +00:00
dan
2f17001521 Merge latest changes from orderby-planning branch. 
FossilOrigin-Name: 4c7fb5423430f3b936befaa7c309f8e1968ee7d8
 2014-03-28 19:18:16 +00:00
drh
7c8e9c78c8 Merge the latest changes from trunk. 
FossilOrigin-Name: 3047a25f1c41e83f0b4772f7c36fbfec0f12dc7e
 2014-03-28 18:35:39 +00:00
drh
70c93204ea Disable the wal64k.test script for non-unix systems since it depends on 
unix-only features.

FossilOrigin-Name: 27deb6e49bcc76714dbdc61b34748603155ac770
 2014-03-28 14:41:35 +00:00
drh
a1f7c0a21c Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter 
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
drh
bfa463696b Merge the latest trunk changes and the fix for the crash on a corrupt 
database.

FossilOrigin-Name: 0b35346c32dba14963c85ec178f2b46aa2bbf6dc
 2014-03-27 00:09:00 +00:00
dan
68916c9fd3 Add an extra test case for the potential buffer overread patched by [28ddecff04]. 
FossilOrigin-Name: f585f5d7a0f9bf8c590388654a3638231eba8892
 2014-03-26 15:14:59 +00:00
drh
d9c131c366 Add a test case to verify that the previous change avoids excess buffer 
overread in sqlite3VdbeRecordCompare().

FossilOrigin-Name: 2b28e8d582cf10936fa1faca04a16ca2eeead66f
 2014-03-26 15:05:56 +00:00
drh
182ea4e324 Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to 
avoid a potential buffer overread.

FossilOrigin-Name: 28ddecff044dbc2dff50a7d8406ab67dfe06587f
 2014-03-26 14:51:07 +00:00
drh
5e8980ddb1 Adjust the repeat counts on several tests in speedtest1 so that the relative 
time spent on the test is roughly the same regardless of --size.

FossilOrigin-Name: 7922809ee0d3978ce9221fbb7df63aa0684d0c4d
 2014-03-25 20:28:38 +00:00
drh
e6c7b09df6 Merge enhancements and fixes from trunk. 
FossilOrigin-Name: e005f2d6dd9faf38cc8fdb9428b5aa6192a6adae
 2014-03-25 18:29:12 +00:00
drh
c872966ef4 Add another performance test case to speedtest1. This case is another 
ORDER BY test but this time without LIMIT.

FossilOrigin-Name: 9ab7ffd59209aef0ffbf384b3902a93fd3b86a6d
 2014-03-25 17:45:49 +00:00
dan
ab1dcc1a4b Fix a problem in the code added by [707ea170b3] causing vdbesort.c to sort unstably. 
FossilOrigin-Name: d3e640afe611b6ae0b7f2cff5b00900d7e4d5ee3
 2014-03-25 17:07:48 +00:00
drh
0c60c1fe66 Add an ORDER BY test case to speedtest1.c 
FossilOrigin-Name: 588122641e57e957813d329ea071e13ccbde5acd
 2014-03-25 14:54:36 +00:00
drh
3d1d90a13d Fix arithmetic operators so that they do not change the affinity of their 
input operands.  Ticket [a8a0d2996a].

FossilOrigin-Name: 221f8f944703108e47d789fa8ce6c00fe2abcbb6
 2014-03-24 15:00:15 +00:00
dan
4979088506 Avoid attempting to mmap memory from an offset that is not a multiple of the system page size on systems with page sizes larger than 32KB. 
FossilOrigin-Name: db7d62c8d58eb1e8654a762c9b199ae4e2759038
 2014-03-24 11:23:17 +00:00
drh
d345a66428 merge fixes from trunk 
FossilOrigin-Name: faf7f9caf526ab33a6fdb9c89b45a0483510db21
 2014-03-23 18:47:00 +00:00
drh
f45f2326a2 Use only a single OP_MakeRecord instead of two when constructing entries 
to go onto a sorter.

FossilOrigin-Name: d696cdedacd39075aa7fc407ab7c7e50f01d9f39
 2014-03-23 17:45:03 +00:00