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smaller-expr
Commit Graph

12205 Commits

Author SHA1 Message Date
drh
ee07978c9a Experimental changes that reduce the size of Expr objects from 72 to 64 
bytes each on x64 and from 48 to 44 bytes each on x32.

FossilOrigin-Name: 8ad0a123a2046e4bf95b4f9c28f26221afb3fc43
 2014-05-06 15:28:56 +00:00
mistachkin
7dd9fb65e2 When building for Windows 8.0 using Visual Studio 2013, make sure the cross-compilation native library path is set correctly. 
FossilOrigin-Name: c1ab9092e29bc9d172c1f1a3becbcc83b79f2080
 2014-05-05 22:43:17 +00:00
mistachkin
220942b757 More modularization work on the MSVC batch build tool. 
FossilOrigin-Name: 9a06773acc181e981f61f476a8e56417b98beba9
 2014-05-05 21:08:47 +00:00
drh
44a3ba7123 Create new header file "os_setup.h" used to detect the operating system 
at compile-time, and "os_win.h" that contains windows-specific header in
formation.

FossilOrigin-Name: bd92e0f80c1158d810b0d47e38f2fe06ff24bb8c
 2014-05-05 20:32:15 +00:00
mistachkin
f6a2342651 Work on cleaning up the MSVC batch build tool integration with Visual Studio 2013. 
FossilOrigin-Name: b5a72dfd59fba6a9938ac1afdec06a2e6809fd2d
 2014-05-05 20:24:34 +00:00
drh
1a8a0d3f1a Attempt to fix the build on beagleboard. 
FossilOrigin-Name: 3ac75725a66730566105ad184a988a8f80f51055
 2014-05-05 20:21:52 +00:00
mistachkin
c254ff62c1 Centralize and reform use of the Win32 related include files. 
FossilOrigin-Name: 857f2baf9b722e4eb1ac0d50fe03e32d5176185b
 2014-05-05 18:24:47 +00:00
mistachkin
0e56c52e1d Merge updates from trunk. 
FossilOrigin-Name: a3cfd81339267c87db511cedf35ec209ee1f1a72
 2014-05-05 17:45:44 +00:00
mistachkin
fdf9f045b7 Fix several header file comments. No changes to code. 
FossilOrigin-Name: dd6eb5d1eb4d50023a008fac116497ede29600c1
 2014-05-05 17:43:28 +00:00
mistachkin
72de9addc7 Enhance the Win32 VFS I/O retry logic. 
FossilOrigin-Name: 4760504396bcf44528eb8de9ed7aa5d9659c54b6
 2014-05-02 22:39:54 +00:00
mistachkin
b91ca38514 Merge updates from trunk. 
FossilOrigin-Name: 598a3875ce98015e9a38db54bd0cb6290424c3d8
 2014-05-02 21:42:31 +00:00
mistachkin
4a11505be9 Merge updates from trunk. 
FossilOrigin-Name: c4d1d8a0db48f523d1624f2468261c171152c0f7
 2014-05-02 21:38:02 +00:00
dan
a153643b07 Fix a broken test case in fuzz.test. 
FossilOrigin-Name: faa469355eabb2c407f24638b090725448aac37f
 2014-05-02 14:54:56 +00:00
drh
e724d3d26a Add a comment explaining why WhereLoop cost adjustments are omitted for 
skip-scan loops.

FossilOrigin-Name: 3bc43594aaeee9225c0590677fcce480bedcb37b
 2014-05-02 00:09:40 +00:00
dan
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. 
FossilOrigin-Name: 427409ae106cdab7892a6b50fe30c5f52de5addc
 2014-05-01 20:26:48 +00:00
drh
c5f246eb37 Add #ifdefs for test coverage. Add a testcase(). 
FossilOrigin-Name: be2702ce35c713b33c9b7689643b45fb0de6af2a
 2014-05-01 20:24:21 +00:00
dan
e03d76254c Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. 
FossilOrigin-Name: 2b935bdea1452505f36dc8c7aad49e6c42f4eceb
 2014-05-01 10:19:16 +00:00
dan
5da73e1a09 Fix a problem in calculating the costs of "OR" scans. 
FossilOrigin-Name: 9bbca48b42e4fe16f2188e18dc736da30a96435c
 2014-04-30 18:11:55 +00:00
dan
4243e27f22 Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. 
FossilOrigin-Name: 90e36676476e8db00658772e6c938242f766d306
 2014-04-30 15:22:25 +00:00
dan
8164722c58 Add text to the header comment of whereLoopAddBtree() describing how the costs of various b-tree loops are estimated. 
FossilOrigin-Name: 05e6e16cb28c9ffb4596bd2ef81f687c5403ecbb
 2014-04-30 15:00:16 +00:00
dan
75525cbe24 Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. 
FossilOrigin-Name: 9b975bf33cd8fc28c64183a9642bf9fb436a4746
 2014-04-30 14:53:21 +00:00
dan
4a6b8a05cd Fix a couple of out-of-date comments in where.c. 
FossilOrigin-Name: eefeda32d54efbbdf7d20b719299eda48b891fae
 2014-04-30 14:47:01 +00:00
drh
253666e520 Improved rendering of LogEst values corresponding to real values near 0.0 
in the tool/logest.c utility program.

FossilOrigin-Name: 32910c8c595858245bb7ecfe3aa0f90eeae641af
 2014-04-30 14:22:38 +00:00
drh
224155dd1c Fix long-standing typos in comments. 
FossilOrigin-Name: b9f91317c34d07769a95dc2f905a6ccabceb64a3
 2014-04-30 13:19:09 +00:00
dan
264d2b97a9 Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. 
FossilOrigin-Name: e2d42f909de85a0586389f2dc0e654f7af2e351a
 2014-04-29 19:01:57 +00:00
dan
e4618fb30d Merge trunk changes into this branch. 
FossilOrigin-Name: d74299f037f3a6a4b3bce8b4d1c76c407c1f3b3e
 2014-04-29 16:46:24 +00:00
dan
09e1df6c00 Ignore likelihood() values on indexed IPK lookups. 
FossilOrigin-Name: 5bb7757a7b32a74482d3e93e9c9eea02273fe981
 2014-04-29 16:10:22 +00:00
dan
67a03cfd6e Fix a test case so that it updates sqlite_stat1 consistently. 
FossilOrigin-Name: 2dc5a0b55567f13f0528ed17242e680cde2f2a29
 2014-04-29 12:01:35 +00:00
dan
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. 
FossilOrigin-Name: a8ae93f0cffa116df0ba34d46a53f49d42dace41
 2014-04-28 20:11:20 +00:00
dan
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. 
FossilOrigin-Name: 4047ac75e2a8f0b330255501c42e4f04e5ab500d
 2014-04-28 19:34:06 +00:00
drh
65e6b0dd12 Add the sqlite3_rtree_query_callback() API to the RTree virtual table. 
(Cherrypick from the sessions branch.)

FossilOrigin-Name: af2cbe64adab5f9e3b0f3da00d06428088589d7f
 2014-04-28 17:56:19 +00:00
dan
6b6828625b Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. 
FossilOrigin-Name: 20f468dfbcb247e51446fad411a6e6cc0d130411
 2014-04-28 15:11:25 +00:00
dan
9881d60d17 Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. 
FossilOrigin-Name: 1b95544f84bf83c28cc15f6d0690fdf8a6bb3941
 2014-04-28 12:08:23 +00:00
dan
b51926e67c Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. 
FossilOrigin-Name: 35f46a55d866b9a87c1321aab8e0cfe86ccadb93
 2014-04-28 10:00:59 +00:00
dan
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. 
FossilOrigin-Name: 88a5758dcce891eb7be15432ebdc9f80071d413b
 2014-04-28 09:35:31 +00:00
dan
440e6ff3b0 Fix an error in estimating of the number of rows visited by a range scan. 
FossilOrigin-Name: d491de62fce69d93e89f65f7713972f7c2c451f7
 2014-04-28 08:49:54 +00:00
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
cfc9df76e1 Store values loaded from the stat1 table as logarithmic values in memory. 
FossilOrigin-Name: 1bd74c49ddab6f53bb6eaa57907eff44c2580dd6
 2014-04-25 15:01:01 +00:00
drh
9dfaf621d1 Make sure ORDER BY clauses on joins that involve virtual tables and that 
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
drh
a01c7c70fd When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes 
occur, perhaps due to context swaps.

FossilOrigin-Name: 4e88042f9d3e678914da96c0eb276f3d8fca5a94
 2014-04-25 12:35:31 +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
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
b355c2cc12 Clean up the proper-subset cost adjustment logic to make it more compact 
and easier to read and so that full branch test coverage is more easily
obtained.

FossilOrigin-Name: 9a5d38c79d2482a23bcfbc3ff35ca4fa269c768d
 2014-04-18 22:20:31 +00:00
drh
71794dbaeb Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check 
the processor byte-order at run-time.  Add additional compile-time byte order
checks for ARM, PPC, and SPARC.

FossilOrigin-Name: 2c5363873a6f990a0abaacac6303acd46b48befc
 2014-04-18 00:49:29 +00:00