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20,877 Commits 1,610 Branches 185 Tags
cc491f4b1bd7a07d931cd36bf5b763f9007e9916
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167 Commits

Author SHA1 Message Date
dan
19ff12dd76 Fix some issues with vector range constraints and the column cache. Also vector range constraints and rowid columns. 
FossilOrigin-Name: 42607366bfc2dceb1013797a973b3b8df75dcb4d
 2016-07-29 20:58:19 +00:00
dan
145b4ea519 Change the way "(a, b) = (SELECT *)" expressions are handled in where.c if there is an index on one of the columns only. 
FossilOrigin-Name: 4dfebff2924f46284d5b9cda69175f79b29d6028
 2016-07-29 18:12:12 +00:00
dan
d9ed09d47b Merge latest trunk changes into this branch. 
FossilOrigin-Name: d4f3d52c5a11fc7ad7e8cad76361edbcef13a12f
 2016-07-26 18:15:35 +00:00
dan
8da209b169 Fix where.c handling of "IN (SELECT ...)" expressions when the SELECT returns more than one result column. Also error handling for other row value constructor cases. 
FossilOrigin-Name: 061b8006034f06a0311b4304c8b14d2c8b0153df
 2016-07-26 18:06:08 +00:00
drh
426f4ab009 Make sure affinity is applied correctly on lower-bound range constraints 
in the min() optimization.  Fix for ticket [a0bac8b3c3d1bb].

FossilOrigin-Name: b819bace9c2a0b0159122b26db96a8f50a6f0eac
 2016-07-26 04:31:14 +00:00
dan
ba00e30a3a Allow vector IN(SELECT ...) expressions to use an index if either all the indexed columns are declared NOT NULL or if there is no difference between the expression evaluating to 0 and NULL (as in a WHERE clause). 
FossilOrigin-Name: e2fd6f49b1b145bec09c581cc982b89429643ae9
 2016-07-23 20:24:06 +00:00
mistachkin
709947a315 Merge comment typo fixes from trunk. 
FossilOrigin-Name: 728c5aa436a5f55c86b019c415a2b71d1b0a8fd6
 2016-07-10 19:35:45 +00:00
mistachkin
e234cfd11f Fix typos in comments. No changes to code. 
FossilOrigin-Name: 77c692a6704cd877ba35d0afb774ab9b46364d59
 2016-07-10 19:35:10 +00:00
dan
71c57db099 Add some support for using row value constructors in certain parts of SQL expressions. There are many bugs on this branch. 
FossilOrigin-Name: b2204215b231202aef7a218411cc2ddaecf28f35
 2016-07-09 20:23:55 +00:00
dan
2b693d63e4 Allow LIKE operators that appear in a WHERE clause to be included in the cursor-hint for a cursor on the rhs of a LEFT JOIN. 
FossilOrigin-Name: 7455d932f5079ffe40462a8c119fc22b8a9bcbcc
 2016-06-20 17:22:06 +00:00
dan
e6912fd819 Include WHERE terms in the cursor-hint passed to a cursor opened for the rhs of a LEFT JOIN iff we can be sure that those terms will not evaluate to true if the LEFT JOIN generates a row of NULLs. 
FossilOrigin-Name: 998095aba01b75f685ed981b377e1dfe650d9bbf
 2016-06-17 19:27:13 +00:00
dan
b324cf756e If a table is on the rhs of a LEFT JOIN, include only terms from the joins ON(...) clause in the cursor-hint passed via OP_CursorHint. 
FossilOrigin-Name: 2a2346b04235c6d0b7a8e64c92ee31018285c29f
 2016-06-17 14:33:32 +00:00
drh
eeb9565a3e Add a new OP_SeekRowid opcode, that combines the functions of OP_MustBeInt 
and OP_NotExists.  This makes the code slightly smaller and faster.

FossilOrigin-Name: ffe80a1bfa014943a614fc6993c1749b9bfec4c1
 2016-05-26 20:56:38 +00:00
drh
ce943bc834 Clean up the WHERE_* macros used for the wctrlFlags parameter on the 
sqlite3WhereBegin() interface, freeing up some bits to be used for other things.

FossilOrigin-Name: d01305841da94b2d47e32744802f69525bf590df
 2016-05-19 18:56:33 +00:00
drh
a72a15e45a Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. 
FossilOrigin-Name: da94a6e0ebacad8f235dcd653a25474327f26137
 2016-05-09 19:58:56 +00:00
drh
f09c48233a Simplification to the logic used to decide between OP_Seek and OP_NotExists. 
Use OP_NotExists for both DELETE and UPDATE.

FossilOrigin-Name: 3a695263183303e3f64eb2320752d0fdef53eaf2
 2016-05-06 20:23:12 +00:00
drh
bcf6884afd In the WHERE generator, when building code for a DELETE operation, make sure 
that seeks to the main table are not deferred.
This is a better fix for the [16c9801ceba49] bug than the previous.

FossilOrigin-Name: 150dd09ebd7b17234a79e1811a0fae8b0a7a40d5
 2016-05-06 16:06:59 +00:00
drh
44aebff246 Improvements to the way the LIKE optimization is implemented, resulting in 
slightly smaller and faster code that is easier to test.

FossilOrigin-Name: 54c63b329288729031f45b7778752552cd90e226
 2016-05-02 10:25:42 +00:00
drh
ba26faa33f Fix a problem in the code generator for joins on virtual tables where the 
outer loop of the join uses the IN operator.

FossilOrigin-Name: 6c56b3a04778bc62ca50307ad838dd301cd91ac2
 2016-04-09 18:04:28 +00:00
drh
599d576456 Add a NEVER() to the code generator. Change the parameter name "mExtra" 
to "mPrereq" in the query planner, to more closely reflect its meaning.

FossilOrigin-Name: 721ae51e443647291f3a8f7f2128aa410fee2682
 2016-03-08 01:11:51 +00:00
drh
fb826b8c13 Changes so that some assert()s in the virtual table query planner are 
correct even following an OOM error.

FossilOrigin-Name: 9805f6f85211dcb5a0ab3ceca204e6f2e48530ea
 2016-03-08 00:39:58 +00:00
drh
237b2b7111 Avoid a NULL pointer dereference following an OOM while generating code 
for IN operators on virtual tables.

FossilOrigin-Name: c924008692e35f1f5144830af08d6de051dd21dd
 2016-03-07 19:08:27 +00:00
drh
dbc49161c0 Allow the left-hand side of IN operators on virtual tables to have the 
aConstraintUsage[].omit flag clear.

FossilOrigin-Name: 1622623cbbfc4325c53d731aba78ca9c382ec612
 2016-03-02 03:28:07 +00:00
drh
0bf2ad6a18 Clearer presentation of the logic. No functional changes. 
FossilOrigin-Name: a3dcf6db76cc09bdfedb1bbeba3b359b77762cbe
 2016-02-22 21:19:54 +00:00
drh
a6d2f8eb1e Avoid an unnecessary seek operation on some corner-case skip-scans. 
FossilOrigin-Name: 38e837e605076124b73235e1fd832838d9545cb2
 2016-02-22 20:52:26 +00:00
drh
4df86af329 Remove unnecessary sets of db->mallocFailed. 
FossilOrigin-Name: b787165b25a240fd5b4a5c7f73b395f30213a1d7
 2016-02-04 11:48:00 +00:00
dan
cddb6ba03b Fix a problem causing the OR/covering-index optimization to be disabled if compile time parameter SQLITE_MAX_ATTACHED were set to greater than 30. 
FossilOrigin-Name: a17712bf8d98dd485560f434a5350e6381cf1411
 2016-02-01 13:58:56 +00:00
drh
784c1b93fb Merge the implementation of OP_IdxRowid and OP_Seek so that OP_Seek no longer 
requires the rowid register and a separate OP_IdxRowid call.  Shorter and
faster prepared statements result.

FossilOrigin-Name: 9bec50a1e7796a6e038db9b1cc7cc1e7e350bf74
 2016-01-30 16:59:56 +00:00
drh
5f4a686f8c Simplification and size reduction to the printf logic. Remove the bFlags 
parameter from sqlite3VXPrintf() and sqlite3XPrintf().  Use sqlite3XPrintf()
instead of sqlite3_snprintf() for rendering P4 values in EXPLAIN output.

FossilOrigin-Name: 0bdb41c45aa1cc8e5c136aaa6605d54b401483bd
 2016-01-30 12:50:25 +00:00
drh
b17020265b Change the P4_INTARRAY so that always begins with a length integer. Print 
the content of the INTARRAY on EXPLAIN output.

FossilOrigin-Name: 6c520d5726e80b4251338c43c405270d150ea81e
 2016-01-30 00:45:18 +00:00
dan
de892d9660 Experimental attempt to make better use of covering indexes within OR queries. 
FossilOrigin-Name: a323ac3a9d42bd5cb38d724c7e1180584b91054c
 2016-01-29 19:29:45 +00:00
drh
3b83f0cd8f Avoid unnecessary WHERE clause term tests when coding a join where one 
of the tables contains a OR constraint.

FossilOrigin-Name: ab94603974a0ad5342e5aee27603162652e70492
 2016-01-29 16:57:06 +00:00
drh
9b34abee30 Use sqlite3VdbeAddOp4() rather than a separate sqlite3VdbeChangeP4() call, for 
a slightly smaller and faster binary.

FossilOrigin-Name: a4258cd4613c55acacb5c7b61faa3de7eb0759d2
 2016-01-16 15:12:35 +00:00
drh
41d2e66ef3 Add the SQLITE_LIKE_DOESNT_MATCH_BLOBS compile-time option. 
FossilOrigin-Name: 9e1d6d4c391ff90077f0d1cdeb567969fee9f747
 2015-12-01 21:23:07 +00:00
drh
1167d32716 Make the internal sqlite3PExpr() interface responsive to the 
TKFLG_DONTFOLD flag on the operator parameter.

FossilOrigin-Name: b10ab59fb8a696d11a269f3904e799c687246aea
 2015-10-28 20:01:45 +00:00
drh
0030aaad67 Merge recent enhancements from trunk. Version now 3.9.1. 
FossilOrigin-Name: 26fa091d68e89a0b6af61ba706d23a9f37e8025a
 2015-10-16 20:53:57 +00:00
drh
ce78bc6e7e Enhance the use of the column cache for UPDATE statements, making them 
more efficient for the case where a column is modified to be an expression
of other unmodified columns.

FossilOrigin-Name: 871e091df651b2275a672c35ff938bd4b6db0d7f
 2015-10-15 19:21:51 +00:00
drh
99f4647ef5 Merge in all the 3.9.0 updates from trunk. 
FossilOrigin-Name: 29444149342fc6b1ea8cd34c2c8e1fcb06eaa7ed
 2015-10-14 20:09:54 +00:00
drh
728e0f91bb Compiler warning fixes: Rename some local variables from "j1" to avoid a 
name collision with the j1() bessel function in the math library.  Omit a
dummy initializer that gcc 4.6.3 does not like.

FossilOrigin-Name: 9ddef84d432813f3ece8012047d08441caa3315d
 2015-10-10 14:41:28 +00:00
drh
4b92f98ccc Use symbolic names XN_ROWID and XN_EXPR in place of the (-1) and (-2) 
magic numbers in Index.aiColumn[].  Add asserts to help verify that
Index.aiColumn[] is always used correctly.  Fix one place in FK processing
where Index.aiColumn[] was not being used correctly.

FossilOrigin-Name: 7d272aa62cd4cbbf4b5d04e3b918de27671e8301
 2015-09-29 17:20:14 +00:00
dan
354474ad6d Add tests for fts3 and onepass update/delete operations. Also fix a problem with onepass updates that do not affect any rows. 
FossilOrigin-Name: 820c804468abff692742952de670c5d906a50956
 2015-09-29 10:11:26 +00:00
drh
ae1a015c87 Merge trunk changes into the cursor-hints branch. 
FossilOrigin-Name: fbe637620fb7f2c9395c9ddac77d26746d6d4178
 2015-09-24 15:06:30 +00:00
drh
8faee877cb Fix compiler warnings. 
FossilOrigin-Name: 5c31ee62a196b914673384a611534fd778dc64b0
 2015-09-19 18:08:13 +00:00
drh
e63e8a6c78 Fix a crash that can occur with a skip-scan on an index with 
expressions when SQLITE_ENABLE_EXPLAIN_COMMENTS is defined.

FossilOrigin-Name: 25f34cb9b576a2d4250a06a7dbf88010b1c11675
 2015-09-18 18:09:28 +00:00
drh
81966bea22 Merge enhancements from trunk. 
FossilOrigin-Name: 66fe06832614010d3156d7b21a760af9957018cc
 2015-09-15 17:31:47 +00:00
drh
b0264eeca1 Use symbolic names ONEPASS_OFF, ONEPASS_SINGLE, and ONEPASS_MULTI for the 
various modes of the one-pass optimization.

FossilOrigin-Name: 16e56bdadef903c6439a487f2683388aeeb0c625
 2015-09-14 14:45:50 +00:00
drh
66336f3755 Fix a compiler warning and providing missing VdbeCoverage() calls. 
FossilOrigin-Name: 2edd2e5edd60210e18db58bce1e096dd211b6ece
 2015-09-14 14:08:25 +00:00
dan
c6157e1971 Avoid calling sqlite3VdbeCursorMoveto() from more than one point in vdbe.c. Doing so prevents it from being inlined as part of OP_Column. 
FossilOrigin-Name: 166d5af8914c6954fb24a06e9686f194c0d0acde
 2015-09-14 09:23:47 +00:00
drh
163c29c5f3 Merge enhancements from trunk. 
FossilOrigin-Name: 25ee3000e94d60d8c1d7b980f416dcc33eb11105
 2015-09-03 14:39:33 +00:00
drh
34de0c8c5e Merge enhancements from trunk. 
FossilOrigin-Name: 1ab10cbf27245961b40eda1ce70f35646f0a9966
 2015-09-03 14:18:12 +00:00