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37 Commits

Author SHA1 Message Date
drh
1431807a0b Fix corer cases of vector IN operators where the RHS is a compound SELECT 
that includes an ORDER BY clause.

FossilOrigin-Name: 8329ac6f8d1edcc19c3e0559abe9a8011dbe1497
 2016-09-06 18:51:25 +00:00
drh
b29e60c448 Catch vector size mismatch problems during name resolution to avoid later 
problems.

FossilOrigin-Name: 56562a0346170cf7b72445976864b058437a8ac3
 2016-09-05 12:02:34 +00:00
drh
64bcb8cfbb Comment improvements. Put ALWAYS and NEVER macros on three unreachable 
branches.

FossilOrigin-Name: 397617009e07004596476d6f5644fdf84c376f54
 2016-08-26 03:42:57 +00:00
drh
9e730f0bb8 Improvements to the vector comparison splitter in exprAnalyze(). 
FossilOrigin-Name: a3ffd283bc931b04170ef737e56bced33d27f06d
 2016-08-20 12:00:05 +00:00
drh
a1251bc40d Add support for vector assignments in the SET clause of an UPDATE statement. 
FossilOrigin-Name: f320d47d6b7b08d9552c8444004bc256348bda90
 2016-08-20 00:51:37 +00:00
drh
fc7f27b9d2 Change the way TK_SELECT_COLUMN is handled so that the subquery is only 
generated once even if part of the vector comparison is used for indexing
and the other part is now.  This change also is a pathway to vector assignment
in UPDATE statements.

FossilOrigin-Name: d8feea7dcde83179bff303072426561cfe825e58
 2016-08-20 00:07:01 +00:00
drh
8d25cb90cd Replace the magic number (-2) with its symbol XN_EXPR in the 
exprMightBeIndexed() routine.  No logic changes.

FossilOrigin-Name: d4a5af69cc3bde6f8c02075c07b4d47a0252392d
 2016-08-19 19:58:06 +00:00
drh
088645b090 Merge recent changes from trunk. 
FossilOrigin-Name: 959677b97ba15f786936c762e2e68df1151d7ed0
 2016-08-11 12:31:21 +00:00
drh
93ca3933d1 Optimization to sqlite3WhereExprUsage(). 
FossilOrigin-Name: 95493058fcf40306727a281f21c5a2a0011b7d02
 2016-08-10 20:02:21 +00:00
drh
e104dd3cc3 List of MATCH operator names in isMatchOfColumn() should be constant. 
FossilOrigin-Name: 7319d676aaf95ba7391379f4cdf193b6aa898893
 2016-08-10 19:43:29 +00:00
dan
95a08c065a Add missing comments and make some code on this branch clearer. 
FossilOrigin-Name: 6937677cc2c2db6b21f997559f88a339466cd15b
 2016-08-02 16:18:35 +00:00
dan
870a0705fe Fix a problem with IN(...) constraints where the LHS is a sub-select that is an aggregate query. 
FossilOrigin-Name: 1f4dba87da4a44ad26223ad965731164c0d9bad9
 2016-08-01 16:37:43 +00:00
dan
625015e0c9 Remove the EP_Vector expression flag. 
FossilOrigin-Name: e9d9c6d46b46160fad6aa6e3441a65a09157515f
 2016-07-30 16:39:28 +00:00
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
7b35a77b1a Fix further issues with multi-column IN(...) operators. Also some error handling cases surrounding row values. 
FossilOrigin-Name: cc3f6542bec99b00d2698889bcea2aa0b587efa0
 2016-07-28 19:47:15 +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
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
drh
a2fbe3bec6 Proposed fix for a problem in the query planner. 
FossilOrigin-Name: a33d23560959a127e37d8213dc00210cd4b05352
 2016-06-28 22:27:56 +00:00
dan
dbd2dcbd5e Experimental change to allow virtual tables to take advantage of LIKE, REGEXP and GLOB terms that are part of OR expressions within WHERE clauses. 
FossilOrigin-Name: 242507b4ff96bc4c7c7844dbe1c2b8508dbf1d01
 2016-05-28 18:53:55 +00:00
drh
926957f0a6 Performance improvements in sqlite3WhereExprUsage(). 
FossilOrigin-Name: fdf752394b48fb7b9afe7b8a7d83f859985cc2d2
 2016-04-12 00:00:33 +00:00
drh
81fd3497f4 Make sure WhereClause objects are fully initialized before use when 
planning OR queries.

FossilOrigin-Name: 162053021795ff40c447498a76de4d31d58aa808
 2016-02-19 14:10:44 +00:00
drh
575fad6500 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority 
cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
 2016-02-05 13:38:36 +00:00
drh
4a642b6060 Improvements to the way that OOM errors are processed. 
FossilOrigin-Name: c3ef03478a5788c855b3aef385d43ae7f494f440
 2016-02-05 01:55:27 +00:00
drh
b8763639bb Fix two harmless compiler warnings about comparisons of dangling pointers. 
FossilOrigin-Name: 86944f193f1f06b64471953bb5713ecea7f3d803
 2016-01-19 17:54:21 +00:00
dan
ff7b22b714 Fix a problem in whereexpr.c causing a crash while processing a user-function taht accepts zero arguments. 
FossilOrigin-Name: 069e51b19c773aa3017a8d307c8daa0766c224ba
 2015-11-24 18:16:15 +00:00
dan
43970dd774 Add further tests and related fixes for GLOB/REGEXP/LIKE support in virtual tables. 
FossilOrigin-Name: c5e9fd0dc92a07db3d3b5f5c5ad8fb63b3425c2b
 2015-11-24 17:39:01 +00:00
dan
07bdba86d5 Add experimental support for LIKE, GLOB and REGEXP to the virtual table interface. 
FossilOrigin-Name: 277a5b4027d4c2caba8143228a4f7d6df899dbb4
 2015-11-23 21:09:54 +00:00
drh
62aaa6ca88 Fix over-length source code lines. No logic changes. 
FossilOrigin-Name: 198d191b2f5ef7d63ac0093c701955c9052fd734
 2015-11-21 17:27:42 +00:00
drh
202923107d Do not allow table-valued function syntax on ordinary tables and views as those 
objects are not table-valued functions.
Fix for ticket [73eba7ba5c7c0fc].

FossilOrigin-Name: ff5716b89f99d9c4568a39f1f52524528a631623
 2015-11-21 13:24:46 +00:00
drh
d7fd6aa4ba Remove two unused lines of code - discovered by scan-build. 
FossilOrigin-Name: 77b707b77496a08703fe9405e8e4521a4e5b419e
 2015-10-08 02:44:42 +00:00
drh
47991425cb Improved analysis and usage of indexed expressions in the query planner. 
FossilOrigin-Name: f8893696387cba9d293a05a68dc38228077b3dc5
 2015-08-31 15:58:06 +00:00
drh
6860e6fa6f Activate the ability to use expressions in indexes in a query. There are some 
test failures, but mostly this seems to work.

FossilOrigin-Name: 42f93f582eccd8a778189aa6c113874f995ab751
 2015-08-27 18:24:02 +00:00
drh
1f2fc28134 Fix a corner-case bug in table-valued functions. Update the generate_series() 
virtual table to increase the performance estimate penalty for being
underspecified.

FossilOrigin-Name: 552bc9cb88bbe54b4cf5fdf66d1217e7a2047110
 2015-08-21 17:14:48 +00:00
drh
d8b1bfc6bf Fix corner-case memory management issues in table-valued functions. Change 
virtual table handling so that if xDestroy is missing the table is
eponymous only even if xCreate is present.

FossilOrigin-Name: 774e6a14b124bbae4da0e188b62aee9ffb8c3745
 2015-08-20 23:21:34 +00:00
drh
01d230ce05 A list of arguments following a table name translates into equality 
constraints against hidden columns in that table.

FossilOrigin-Name: 40e12cfe4c29475417ba89fb637b4c763cf74016
 2015-08-19 17:11:37 +00:00
drh
6c1f4ef217 Split more subfunctions of where.c out into a new whereexpr.c source file, 
for improved maintainability.

FossilOrigin-Name: 46ef95c108ad8961f2bf3d2dc839d4fb1fddd770
 2015-06-08 14:23:15 +00:00