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16,646 Commits 1,607 Branches 185 Tags
c1bcd9cc3e9913acec4d8b04178d52826f82eb2d
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811 Commits

Author SHA1 Message Date
drh
d673cddad6 Do not reuse factored constants that might have had their encodings changed. 
FossilOrigin-Name: 487f20366ce77f0c90865d10d5aaedd95af98694
 2013-11-21 21:23:31 +00:00
drh
d9f158e7b2 Fix the code generator to honor turning off constant expression factoring. 
FossilOrigin-Name: 882622662dfadf49c65c7d80b7fd87533d079ce9
 2013-11-21 20:48:42 +00:00
drh
d1a01edac9 When one or more arguments to a function are constants, try to factor 
out just those arguments into initialization code.

FossilOrigin-Name: 50d350abbc9176cd6fc606bc45b8fc3020719500
 2013-11-21 16:08:52 +00:00
drh
10f468f37a Remove the obsolete TK_CONST_FUNC token type. 
FossilOrigin-Name: 9b4217f055e9bced186b4c56a5753bd6da7115b5
 2013-11-21 14:44:38 +00:00
drh
b1fba2868b Add the ability to factor constant functions out of inner loops. But do 
not factor out non-constant functions, like random().

FossilOrigin-Name: 1b0f779e19a5c0d51eddd2d88db50034d77d132c
 2013-11-21 14:33:48 +00:00
drh
79353dbd5f Simplifications to the VdbeCursor object. 
FossilOrigin-Name: 5562cd343d8f69242e06a51a7f1aef7ee7d78eec
 2013-11-20 02:53:58 +00:00
drh
85f8aa7907 Add ALWAYS and NEVER macros to currently unreachable but important branches in 
sqlite3ExprCompare().

FossilOrigin-Name: cee835fe902e46f283257fb8ec9d9744c7d6dd77
 2013-11-15 20:06:26 +00:00
drh
c2acc4e466 Changes to make the new constant expression factoring logic more general 
and more testable.

FossilOrigin-Name: d10fb49a92f5f6e93093ae83544e5aec7984361a
 2013-11-15 18:15:19 +00:00
drh
10d1edf0b6 Improvements to the Expr comparison routine to make it more general. 
Improvements to unary-minus code generation so that it can make use of
a global constant register with a zero value.

FossilOrigin-Name: 835be656bb0e83c8108104869166aa9dd850d265
 2013-11-15 15:52:39 +00:00
drh
f30a969b80 Rework the logic that factors constant expressions out of inner loops, making 
it both simpler and faster.

FossilOrigin-Name: 8dc5c76c766828d7c28090bec30ff48227e7b140
 2013-11-15 01:10:18 +00:00
drh
2ec2fb2269 Reference count the KeyInfo object. Cache a copy of an appropriate KeyInfo 
for each index in the Index object, and reuse that one copy as much as possible.

FossilOrigin-Name: defd5205a7cc3543cdd18f906f568e943b8b3a2c
 2013-11-06 19:59:23 +00:00
drh
f9c8ce3ced Standardize the error messages generated by constraint failures to a format 
of "$TYPE constraint failed: $DETAIL".  This involves many changes to the
expected output of test cases.

FossilOrigin-Name: 54b221929744b1bcdbcc2030fef2e510618afd41
 2013-11-05 13:33:55 +00:00
drh
313619f572 Fix the Synopsis on OP_Concat. Added test_addop_breakpoint() during 
SQLITE_DEBUG.  Enhanced sqlite3VdbeChangeToNoop() to omit the instruction
if it is the most recent added.  Continue to fix problems with UPDATE
and WITHOUT ROWID.

FossilOrigin-Name: 9b6d9e106aaa3c2efb33d234d26cf08cd3c967b9
 2013-10-31 20:34:06 +00:00
drh
ee0ec8e1db Fix issues with quering from an auxiliary index that must refer back to the 
PRIMARY KEY index of a WITHOUT ROWID table.

FossilOrigin-Name: cff1f55c52ff57557d9b728a5cd830a367091794
 2013-10-31 17:38:01 +00:00
drh
ad124329ab Some inserts and queries working for multi-column primary keys 
and WITHOUT ROWID.

FossilOrigin-Name: b21d831b2aa55507dd9def2acb02cdbffddf10d1
 2013-10-23 13:30:58 +00:00
drh
bbbdc83b52 The Index object now has nKeyCol and nColumn. nColumn is the total number 
of columns and nKeyCol is the number of key columns.  Currently these always
differ by one.  Refactor aiColumn[] to be of type i16 instead of int.

FossilOrigin-Name: a106ce86cd4afd1f81603826de77df1fb25e9ab5
 2013-10-22 18:01:40 +00:00
drh
fdaac671b8 Improved estimates of the relative speed of index scans based on declared 
datatypes of columns in the table.  Add "r" column to PRAGMA index_info,
showing the estimated relative scan rate.

FossilOrigin-Name: 07462bb6059f023c22a6c84a4a02afbd84e69255
 2013-10-04 15:30:21 +00:00
drh
aecd80215c Remove one unreachable branch and add asserts() to dupedExprStructSize(). 
New asserts verify that removed branch is unused and that constants that are
ORed together in the output do not overlap.

FossilOrigin-Name: 86ad358b5a7567857f2f998fbb8266b7de9ec87e
 2013-09-13 18:15:15 +00:00
drh
ebb6a65d16 Refactor the ExprSetIrreducible() macro into ExprSetVVAProperty(*,EP_NoReduce). 
This is a naming change only.  The logic is the same.

FossilOrigin-Name: 695aee46e9bdf15159ab52db7f522b30c91aed0f
 2013-09-12 23:42:22 +00:00
drh
a4c3c87e3d Merge in the Expr.flags expansion to 32-bits. Use an extra bit to help 
optimize the sqlite3ExprSkipCollate() routine.

FossilOrigin-Name: 4c84d1b4c20f18921dd705bf67e8225975b83e86
 2013-09-12 17:29:25 +00:00
drh
c5cd124900 Increase the number of bits available in Expr.flags. Other tweaks aimed at 
making expression processing more robust.

FossilOrigin-Name: 579a512538528cf4bb4381ba393c5d9e7310086b
 2013-09-12 16:50:49 +00:00
drh
cca9f3d291 Initial implementation of the unlikely() SQL function used as a hint to 
the query planner.

FossilOrigin-Name: 036fc37a034093a4c6fc190633bd41c2b7230d77
 2013-09-06 15:23:29 +00:00
drh
d36e104112 Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single 
new FuncDef.funcFlags field.

FossilOrigin-Name: 97b10e66e98e84755aa577f8da017bf1aea2056c
 2013-09-06 13:10:12 +00:00
mistachkin
f64188910d Fix several harmless compiler warnings. Fix a couple compiler issues with the shell. 
FossilOrigin-Name: 8917e9f9a0802cbfb6f33e2ab1c2f98e4df5babd
 2013-08-28 01:54:12 +00:00
dan
36e78309de Candidate fix for [d666d600a6]. 
FossilOrigin-Name: 781592f32c8e1dcd59954c17211cf61349d1c0b1
 2013-08-21 12:04:32 +00:00
dan
290703091e Add some extra assert() statements to silence a few clang warnings. 
FossilOrigin-Name: 1c63e9515b5f5cb9169928b108d002dcd18ad4fd
 2013-08-19 18:17:03 +00:00
drh
812ea83343 Add a testcase() macro to verify OOM coverage. 
FossilOrigin-Name: d43dcbc488120aeb7104ab9e6a27f62bb348bf6a
 2013-08-06 17:24:23 +00:00
drh
3535ec3e10 Remove unreachable branches in expr.c, replacing them with assert() and 
testcase() statements.

FossilOrigin-Name: 9103c27ceb3f4023ea3a41b679a10717d3f80210
 2013-08-06 16:56:44 +00:00
drh
323df7907e Factor all KeyInfo object allocations into a single function: 
sqlite3KeyInfoAlloc().  Always allocate enough space so that 
sqlite3VdbeRecordCompare() can avoid checking boundaries and hence
run faster.

FossilOrigin-Name: 7301bedd94c8610568349953b18ff3575203e1b2
 2013-08-05 19:11:29 +00:00
drh
e0c7efd9ae Add NEVER() and ALWAYS() macros on some unreachable yet prudent branches. 
FossilOrigin-Name: c5c0a8ab6c222185d5f9d4321e64d9f93cd36b7d
 2013-08-02 20:11:19 +00:00
drh
66518ca71f More test cases and corresponding bug fixes. 
FossilOrigin-Name: 0c8cfdfae215c95cf167f404a1d346690b28e972
 2013-08-01 15:09:57 +00:00
drh
619a1305e7 Fill out an initial implementation of the sqlite3ExprImpliesExpr() function. 
FossilOrigin-Name: 8e07aa2ad5579aeb82174ce5bd432ddb9c058bc1
 2013-08-01 13:04:46 +00:00
drh
b2b9d3d758 Add the logic to keep partial indices up to date through DML statements and 
when new partial indices are created.  This new logic is untested except to
verify that it does not interfere with full indices.

FossilOrigin-Name: fb9044d15ad4fd6ae4a38858c0c0e6fe9d4faa25
 2013-08-01 01:14:43 +00:00
drh
4bd5f73fa0 Add logic to the query planner to only use partial indices if the WHERE clause 
constrains the search to rows covered by the partial index.  This is just
infrastructure.  The key routine, sqlite3ExprImpliesExpr(), is currently a
no-op so that partial indices will never be used.

FossilOrigin-Name: 8ca3eac111e06a1854f878a74bffe8f20eb47f1b
 2013-07-31 23:22:39 +00:00
drh
2c036cff3d Fix an uninitialized variable detected by valgrind. Unclear whether or not 
this should apply to trunk.

FossilOrigin-Name: 19ab4811d542ba781aeb6a4eb3c74642677225e1
 2013-06-26 00:34:13 +00:00
drh
4a5acf8e5c Adjustments to testcase() macros for improved testability. 
FossilOrigin-Name: 4fbb0c4d26c54aaefbe5397cde2a0b9d2ce3885f
 2013-06-18 20:06:23 +00:00
drh
8e23daf372 Fix the Parse.nQueryLoop state variable to work with NGQP. 
FossilOrigin-Name: f1cac24f06b9c71cfa472fdcf2da4cd8689a7cc3
 2013-06-11 13:30:04 +00:00
drh
f7b5496e8e Many small harmless comment changes. Removal of obsolete comments and 
fixing misspelled words.  No changes to code.

FossilOrigin-Name: a0d5cc9315dc6e9ef7dee4c3dfabf4e562d64376
 2013-05-28 12:11:54 +00:00
drh
6fdd3d8aa0 The sqlite3ExprCollSeq() function can no longer be called while parse 
the schema, so remove the code path inside of sqlite3ExprCollSeq() that
dealt with that case.

FossilOrigin-Name: 867b3e3b29a357f68e48f0898bf323c5dd0575a4
 2013-05-15 17:47:12 +00:00
drh
aa87f9a68b Make sure the affinity and datatype of sub-subqueries are initialized 
prior to subqueries as the latter relies on the former.

FossilOrigin-Name: 39b4e6ff9316cc78ea88349091e195b8104d1e9e
 2013-04-25 00:57:10 +00:00
mistachkin
48864df97d Many spelling fixes in comments. No changes to code. 
FossilOrigin-Name: 6f6e2d50941e444ebc83604daddcc034137a05b7
 2013-03-21 21:20:32 +00:00
drh
1ccce44937 Fix the ORDER BY optimization with IN constraints when the RHS of the 
IN constraint is a descending index.

FossilOrigin-Name: 62316ebaca933f7e5df2018e8360a2b74234f30a
 2013-03-12 20:38:51 +00:00
drh
503a686e09 Always use strncmp() rather than memcmp() when comparing strings where one 
or other string might be less than the length parameter, since optimized
versions of memcmp() might read past the first difference and in so doing
generate an access violation.

FossilOrigin-Name: d73435587ba7459e2e2c32980d0e17abdeceb4bc
 2013-03-01 01:07:17 +00:00
drh
433dccfb52 Rename SQLITE_CONSTRAINT_RAISE to SQLITE_CONSTRAINT_TRIGGER. Put the 
extended constraint error codes in alphabetical order.  Add many test cases
for the extended constraint error codes.

FossilOrigin-Name: 3f67437536591a1b0742a25b983707933aaa16d5
 2013-02-09 15:37:11 +00:00
drh
d91c1a1768 Add extended error codes for constraint errors. 
FossilOrigin-Name: 5461104668a49529577f21df97f6a0e7d8f0c679
 2013-02-09 13:58:25 +00:00
drh
3e3f1a5b49 Now supports result sets of the form "TABLE.*" with nested FROM clauses. 
FossilOrigin-Name: 4cf5ed7ea198abc32f8118e79490e77f847f08c1
 2013-01-03 00:45:56 +00:00
drh
261d8a51e2 Adjustments to the collating-sequence refactoring to facilitate full-coverage 
testing and to fix some minor issues found by TH3.

FossilOrigin-Name: cdbfa664839a409589ec7cebfc9111235d2f3b38
 2012-12-08 21:36:26 +00:00
drh
580c8c1816 Veryquick passes all tests now. 
FossilOrigin-Name: 7b96115e81deab0aa0472839cf787ba3f2fc64a7
 2012-12-08 03:34:04 +00:00
drh
d91eba9673 Recognize TK_COLLATE operators that have been transformed into TK_REGISTER. 
Skip both TK_COLLATE and TK_AS operators when looking for the top of an
expression.

FossilOrigin-Name: f66c1db2965054f38125218202b6a6ec62d57666
 2012-12-08 00:52:14 +00:00
drh
62a66e7034 Do not report missing collating functions while parsing the schema. 
Also remove a stray comment.

FossilOrigin-Name: e313edca0472f07e9b872b92120d80b4bc177328
 2012-12-07 22:54:41 +00:00