935850ef75
Remove references in comments to VDBE opcodes that no longer exist. This
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is a documentation change only; no changes to code.
FossilOrigin-Name: ebfb51fe40756713d269b4c0ade752666910bb6e
2014-05-24 17:15:15 +00:00
e96f2df3dd
Changes to the output of EXPLAIN QUERY PLAN to make it clearer when a query uses the PRIMARY KEY index of a WITHOUT ROWID table.
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FossilOrigin-Name: 9268df305b90ac11e44b3107bbab5becf38860b7
2014-05-23 17:17:06 +00:00
43ae8f6f4d
In the command-line shell, if three or more interrupt signals (control-c)
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are received in a row without a response from sqlite3_interrupt() then
call exit(1) immediately. This allows control-C to interrupt the shell
even if it is stuck in a computation or loop that does not involve the
VDBE.
FossilOrigin-Name: b5cde57166fd874d00dec23d3a59bf3a23979fc5
2014-05-23 12:03:47 +00:00
e48ae7157a
Make sure sufficient VDBE registers are allocated for an INSERT...SELECT
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when there is an idlist on the insert table that includes an explicit
rowid. Ticket [9654505cfda93610585fde5a9bbf2e730c8a8d5]
FossilOrigin-Name: 9a2dd18776cc7003752980be0a0920a8799e5f35
2014-05-23 11:48:57 +00:00
c9bbb01180
Do not burn memory remembering CHECK constraints in a read-only database.
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FossilOrigin-Name: 34ddf02d3d21151b8099c0c25706530a03d93887
2014-05-21 08:48:18 +00:00
781597feca
Fix the sqlite3_db_readonly() API so that it reports true if the database
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is readonly because the file format write version (byte 18 of the header)
is too large.
FossilOrigin-Name: 8d8af114dac301335ec10671c1e9a5a6d8266a60
2014-05-21 08:21:07 +00:00
77a90ce811
Work around compilation issue with MSVC.
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FossilOrigin-Name: 9623a29c11e3a90513016ea3306c085d2bf91b62
2014-05-16 23:15:50 +00:00
c007f61bb0
Repurpose the SQLITE_TESTCTRL_FAULT_INSTALL test-control to register a
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callback to be invoked by sqlite3FaultSim(). That test-control has been
unused since 2008-06-20 and was never used in any official release.
FossilOrigin-Name: 0d43a7ad9abe821e33e0bf83a997aa4461b1e3f2
2014-05-16 14:17:01 +00:00
0f710546e7
In mutex_w32.c, make inclusion of the Windows header file dependent on SQLITE_OS_WIN, not SQLITE_MUTEX_W32.
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FossilOrigin-Name: 93ffbcc0b1d207950851dbb16a8c101afb949d5f
2014-05-12 15:37:03 +00:00
9ee8810be2
Remove a superfluous variable initialization.
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FossilOrigin-Name: 68766f837491cb89c2103f2627eb9e23ab326a68
2014-05-07 20:33:17 +00:00
8009c9b439
A better fix for the group_concat() problem.
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FossilOrigin-Name: 1c086deebd0eb442918972e4b9185a5a0db3b8c3
2014-05-07 20:24:00 +00:00
86a1119133
Ensure that the sqlite3StrAccumAppend() routine is never called with a NULL
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second argument. Doing so is harmless when N==0, but it causes an assert()
to fail that was placed to quiet static analyzers.
FossilOrigin-Name: f03fbf3700d9d4a654e3aa2e5caa810a8416bed9
2014-05-07 18:21:56 +00:00
eacc050f30
Make sure the group_concat() function returns an empty string, not a NULL,
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if it has at least one input row. Fix for ticket [55746f9e65f8587].
FossilOrigin-Name: 0deac8737545a020d344be96fff16660a7977ab8
2014-05-07 17:19:31 +00:00
731dc0cb0e
Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from
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the xDeviceCharacteristics method in the VFS. Add the "nolock" and
"immutable" query parameters to URI filenames.
FossilOrigin-Name: 1a0d7d3d9dd54b783e3a805961287dd01f94770c
2014-05-07 15:46:04 +00:00
6451c2b04e
Fix nolock and immutable so that they work even if READONLY is requested.
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FossilOrigin-Name: e193aced2942e7405d0f45f90d4954b5663b4ba5
2014-05-07 15:32:03 +00:00
62e603a904
Add test cases and documentation for the nolock and immutable query
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parameters.
FossilOrigin-Name: 19d56cbaca222b32e2e354063149cccd89441d73
2014-05-07 15:09:24 +00:00
1a8a0d3f1a
Attempt to fix the build on beagleboard.
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FossilOrigin-Name: 3ac75725a66730566105ad184a988a8f80f51055
2014-05-05 20:21:52 +00:00
0e56c52e1d
Merge updates from trunk.
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FossilOrigin-Name: a3cfd81339267c87db511cedf35ec209ee1f1a72
2014-05-05 17:45:44 +00:00
fdf9f045b7
Fix several header file comments. No changes to code.
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FossilOrigin-Name: dd6eb5d1eb4d50023a008fac116497ede29600c1
2014-05-05 17:43:28 +00:00
b91ca38514
Merge updates from trunk.
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FossilOrigin-Name: 598a3875ce98015e9a38db54bd0cb6290424c3d8
2014-05-02 21:42:31 +00:00
4a11505be9
Merge updates from trunk.
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FossilOrigin-Name: c4d1d8a0db48f523d1624f2468261c171152c0f7
2014-05-02 21:38:02 +00:00
e724d3d26a
Add a comment explaining why WhereLoop cost adjustments are omitted for
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skip-scan loops.
FossilOrigin-Name: 3bc43594aaeee9225c0590677fcce480bedcb37b
2014-05-02 00:09:40 +00:00
3852413246
Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort.
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FossilOrigin-Name: 427409ae106cdab7892a6b50fe30c5f52de5addc
2014-05-01 20:26:48 +00:00
c5f246eb37
Add #ifdefs for test coverage. Add a testcase().
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FossilOrigin-Name: be2702ce35c713b33c9b7689643b45fb0de6af2a
2014-05-01 20:24:21 +00:00
57fe136b23
Take out the special handling of nolock=true in os_win.c and add it to
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pager.c, so that it works for all VFSes. Add the pPager->noLock boolean
for clarity.
FossilOrigin-Name: 725c1c14be331bce9bf074960dbfa7b6d4c1ba87
2014-05-01 01:49:22 +00:00
48cdabcb1a
Avoid unnecessary xUnlock operations on temp file.
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FossilOrigin-Name: 1829c38c3233c8cb194fae6d560d35a8916b1348
2014-05-01 01:20:05 +00:00
d1ae96d39e
Add the immutable=TRUE query parameter and SQLITE_IOCAP_IMMUTABLE, either
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of which prevents locking of the database and omits tests for existance
of journal files.
FossilOrigin-Name: 71f152c85d79ebd9ca48bc9c4c71fc4debaf2437
2014-05-01 01:13:08 +00:00
fb4c9242a5
Merge in all recent changes and enhancements from trunk.
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FossilOrigin-Name: 84243f844417f888ab731841f7dbf95749f6e034
2014-04-30 20:32:41 +00:00
5da73e1a09
Fix a problem in calculating the costs of "OR" scans.
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FossilOrigin-Name: 9bbca48b42e4fe16f2188e18dc736da30a96435c
2014-04-30 18:11:55 +00:00
8164722c58
Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated.
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FossilOrigin-Name: 05e6e16cb28c9ffb4596bd2ef81f687c5403ecbb
2014-04-30 15:00:16 +00:00
4a6b8a05cd
Fix a couple of out-of-date comments in where.c.
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FossilOrigin-Name: eefeda32d54efbbdf7d20b719299eda48b891fae
2014-04-30 14:47:01 +00:00
224155dd1c
Fix long-standing typos in comments.
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FossilOrigin-Name: b9f91317c34d07769a95dc2f905a6ccabceb64a3
2014-04-30 13:19:09 +00:00
264d2b97a9
Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same.
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FossilOrigin-Name: e2d42f909de85a0586389f2dc0e654f7af2e351a
2014-04-29 19:01:57 +00:00
e4618fb30d
Merge trunk changes into this branch.
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FossilOrigin-Name: d74299f037f3a6a4b3bce8b4d1c76c407c1f3b3e
2014-04-29 16:46:24 +00:00
09e1df6c00
Ignore likelihood() values on indexed IPK lookups.
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FossilOrigin-Name: 5bb7757a7b32a74482d3e93e9c9eea02273fe981
2014-04-29 16:10:22 +00:00
7de2a1faf6
Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies.
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FossilOrigin-Name: a8ae93f0cffa116df0ba34d46a53f49d42dace41
2014-04-28 20:11:20 +00:00
42685f211e
The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same.
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FossilOrigin-Name: 4047ac75e2a8f0b330255501c42e4f04e5ab500d
2014-04-28 19:34:06 +00:00
65e6b0dd12
Add the sqlite3_rtree_query_callback() API to the RTree virtual table.
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(Cherrypick from the sessions branch.)
FossilOrigin-Name: af2cbe64adab5f9e3b0f3da00d06428088589d7f
2014-04-28 17:56:19 +00:00
e3bfbb7284
Modify internal function whereLoopAdjustCost() so that it does not prefer a skip-scan over a regular index scan even if the regular scan uses a subset of the WHERE terms used by the skip-scan.
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FossilOrigin-Name: 88a5758dcce891eb7be15432ebdc9f80071d413b
2014-04-28 09:35:31 +00:00
440e6ff3b0
Fix an error in estimating of the number of rows visited by a range scan.
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FossilOrigin-Name: d491de62fce69d93e89f65f7713972f7c2c451f7
2014-04-28 08:49:54 +00:00
2dd3cdcfab
Fix an sqlite3_stmt_status() problem caused by recent changs on this branch.
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FossilOrigin-Name: dee204092421a239f9f60ab83c3a5b3e24d1baea
2014-04-26 20:21:14 +00:00
453e0261df
Allow the xfer optimization to proceed if the DEFAULT on the very first
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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
9940e2aa45
Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a].
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FossilOrigin-Name: f8c4c495e6de1f124d205383d4bafa46accbff5c
2014-04-26 14:07:57 +00:00
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.
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FossilOrigin-Name: c51efaa5d29ee0a91b9e6a83a8dd82530670811a
2014-04-25 20:22:45 +00:00
cfc9df76e1
Store values loaded from the stat1 table as logarithmic values in memory.
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FossilOrigin-Name: 1bd74c49ddab6f53bb6eaa57907eff44c2580dd6
2014-04-25 15:01:01 +00:00
9dfaf621d1
Make sure ORDER BY clauses on joins that involve virtual tables and that
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have a DISTINCT clause work correctly. This is a candidate fix for
ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in
separately.
FossilOrigin-Name: 171138122690faafde0dcab0201b90bdf02d3637
2014-04-25 14:42:17 +00:00
a01c7c70fd
When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes
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occur, perhaps due to context swaps.
FossilOrigin-Name: 4e88042f9d3e678914da96c0eb276f3d8fca5a94
2014-04-25 12:35:31 +00:00
aa9933c115
Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing.
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FossilOrigin-Name: c5a6ec0a880652dc8f4593d9f7acd58ddc3dc5f3
2014-04-24 20:04:49 +00:00
f34a9fef4c
Change from using the win32-none VFS to just a query parameter.
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FossilOrigin-Name: ffceacf61905dc3553978ba5f68e133947eca2fa
2014-04-22 19:42:22 +00:00
9df245b073
Add some OSTRACE calls for consistency.
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FossilOrigin-Name: be292d559748a24ff012266a1f58ce6c027e0411
2014-04-22 19:34:16 +00:00
drh