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051170c4531e70f3d2ec7141970140eb9060b3a3
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308 Commits

Author SHA1 Message Date
drh
ae80ddea9f Remove the Expr.pColl field and compute the collating sequence as it is needed. 
This fixes the test script "shared9.test", though there is still a memory leak.
And there are other problems.  Consider this a work-in-progress.

FossilOrigin-Name: fd011cb22f2d899d94ec7ce22641d7a8f5e19972
 2012-12-06 21:16:43 +00:00
drh
5a05be1b68 Attempt to suppress warnings generated by Coverity. 
FossilOrigin-Name: 7b1a6e6cb5099076bf19db142b17c99044a869cd
 2012-10-09 18:51:44 +00:00
drh
ed551b95a4 Add test cases and fix bugs associated with the previous check-in 
enhancements to nested aggregate subquery processing.

FossilOrigin-Name: 00b1dc71be4c3420730b5f7840af824ea86165e7
 2012-08-23 19:46:11 +00:00
drh
030796df8d Further improvements to the processing of nested aggregate queries. 
FossilOrigin-Name: 3c3ffa901f5ce8a523028ff15563ce3e0f55a641
 2012-08-23 16:18:10 +00:00
drh
a51009b251 Convert the NameContext object from using u8 booleans to using individual 
bits in a single u8 as its booleans.  This change might become a basis for
a fix for [c2ad16f997ee9c].

FossilOrigin-Name: 722260969306778029b738402f22e3c154dd77a1
 2012-05-21 19:11:25 +00:00
drh
70331cd725 Enhance the processing of ORDER BY clauses on compound queries to better 
match terms of the order by against expressions in the result set, in order
to enable better query optimization.

FossilOrigin-Name: a49e909c8738317c8383ce93771c0a9c4cf270bc
 2012-04-27 01:09:06 +00:00
drh
89d5d6a2a7 Fix the application-defined function logic so that functions with a variable 
number of parameters can be replaced or deleted correctly.  Also refactor
some of the function-finder code for clarity of presentation.

FossilOrigin-Name: 09d5581c81fb6a9bf6a369d0abf5ef6b54637576
 2012-04-07 00:09:21 +00:00
drh
4b3ac73c2f Minor cleanups of the compound-subquery flattening logic. New test cases 
added for joins the compound subquery.

FossilOrigin-Name: 5061d85ff934db3c217c97acbbbed3286d9e02aa
 2011-12-10 23:18:32 +00:00
drh
e802c5da01 Improved handling of USING and NATURAL JOIN in 3-way and higher joins. 
Ticket [3338b3fa19ac4ab]

FossilOrigin-Name: 551ce407bd77149865423511bd52eba2f404161a
 2011-10-18 18:10:40 +00:00
dan
da79cf0cc9 Fix for [54844eea3f]: Do not create automatic indexes on correlated sub-queries. 
FossilOrigin-Name: 9f14fa56ba31afe3de8b0cf26ed09573a2cc2283
 2011-07-08 16:10:54 +00:00
dan
1db95106ee Currently, if SQLite cannot find a table or index referred to by a query, it reloads the database schema from disk to see if the table or index has been added since the schema was cached in memory. Extend this behaviour to columns (which may have been added using ALTER TABLE) and fix some obscure cases related to tables and indexes (INDEXED BY, DROP TABLE etc.). 
FossilOrigin-Name: 4932f22848b3d15a2b6dc5fa2cd69ce19182e2a4
 2010-06-28 10:15:19 +00:00
drh
9e48165b07 Fix a typo in a comment. No changes to code. 
FossilOrigin-Name: 332cb55113a621456c6522830585434146c388e7
 2010-04-08 17:35:34 +00:00
drh
7caba669a6 New test cases for automatic indices. New testcase() macros associated 
with column-used bitmasks.

FossilOrigin-Name: e1aa48ace7e43c3805278120b8228ee597e2cee7
 2010-04-08 15:01:44 +00:00
drh
a756466349 Log all error messages if logging is enabled. 
FossilOrigin-Name: a8076aede33c07e9a2aaa05be8a888f37b45e41c
 2010-02-22 19:32:31 +00:00
drh
1d9da70ad7 Fix the expression comparison logic to take the COLLATE operator into account. 
Ticket [360c6073e197]

FossilOrigin-Name: 44bb1bfe5dedd8054ddd933941ee4112ed8d3b68
 2010-01-07 15:17:02 +00:00
drh
c79c761f84 Add evidence marks associated with autoincrement. 
FossilOrigin-Name: 0e918c54893c361fb005295847f89aadcbfae35d
 2010-01-01 18:57:48 +00:00
drh
25e978df92 Within the special new.* and old.* tables of a trigger, recognize all the 
original table names even if those names overload the "rowid", "oid", or
"_rowid_" special names.  Ticket [34d2ae1c6d0].

FossilOrigin-Name: 1a0e5fa9f0ff792c678c99d49960601a0cef925b
 2009-12-29 23:39:04 +00:00
dan
bb5f168f2e Move [7d30880114] to the trunk. Add optimizations to reduce the number of opcodes used for BEFORE UPDATE triggers. 
FossilOrigin-Name: 1b7c5250ccb63182324bfc3f1ea28f17b6db357a
 2009-11-27 12:12:34 +00:00
dan
f6963f99dd Change so that deleting an Expr structure requires only one frame per level in the expression tree, not two. 
FossilOrigin-Name: a4380ab326e4b0de29271c824d041193e86b7139
 2009-11-23 14:39:14 +00:00
drh
c81c11f62c Remove the obsolete "$Id:$" RCS identifier strings from the source code. 
FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
 2009-11-10 01:30:52 +00:00
drh
8677d30812 Create a new datatype "ynVar" to hold "nVar" (number of variable) values. 
This is normally 16-bits can can be 32-bits if SQLITE_MAX_VARIABLE_NUMBER
is large enough.

FossilOrigin-Name: 24a4d520d540d92b611abc4eb57dc6da9be4eac6
 2009-11-04 13:17:14 +00:00
shane
f639c40f77 Fix compiler warnings on MSVC build. 
FossilOrigin-Name: 01c4b5b84ec7ce589e20ea66e80011f092ab32f0
 2009-11-03 19:42:30 +00:00
dan
f7b0b0ad5f When generating WHERE clause terms internally for NATURAL and USING joins, identify the table by its position in the FROM list, not by its name or alias. Fix for [b73fb0bd64]. 
FossilOrigin-Name: 6fe6371175482d38ac4aeea994c7b20c18b7de01
 2009-10-19 15:52:32 +00:00
shane
cea72b2dc2 Warning cleanup from the MSVC compile. 
FossilOrigin-Name: 26cd015c0ee1c18dd37f11b47ce35cfa320b3514
 2009-09-07 04:38:36 +00:00
dan
65a7cd1631 More fixes and comment updates. 
FossilOrigin-Name: 38a9327bad1a01e3d7a47fad44ece2f6c7e88643
 2009-09-01 12:16:01 +00:00
dan
2832ad4221 More fixes for test cases. 
FossilOrigin-Name: 85d9f23be1e8673dbda42e43b9b23332ada9225f
 2009-08-31 15:27:27 +00:00
dan
2bd935168e Fix some authorization callback problems. 
FossilOrigin-Name: 8a746fbfd51f70f56e25ade59df49d2dc03c131c
 2009-08-31 08:22:46 +00:00
dan
165921a742 Changes to support recursive triggers. 
FossilOrigin-Name: 9b9c19211593d5ff7b39254a29c284560a8bcedb
 2009-08-28 18:53:45 +00:00
drh
f7828b5cd6 Additional updates to the symbol resolver and expression tree walker to 
facilitate test coverage. (CVS 6764)

FossilOrigin-Name: a49c2d4befcc33dd98543fe7b4d4f0bae56f1a90
 2009-06-15 23:15:59 +00:00
drh
73c0fdc7fa Updates to resolve.c to facilitate full coverage testing. (CVS 6762) 
FossilOrigin-Name: c50f0f28df1dfdccf1d159c983b616cd9b823955
 2009-06-15 18:32:36 +00:00
shane
cf6973963a Fix compiler warnings with MSVC build. (CVS 6699) 
FossilOrigin-Name: 0791588520603d106aa0b8ce24d68b740b7b80c8
 2009-06-01 16:53:09 +00:00
drh
fd773cf970 Refinements in expression handling logic that have resulted from recent 
structural testing. (CVS 6690)

FossilOrigin-Name: bd89f2c29b00e6b473f30c2e929d2f626721ad92
 2009-05-29 14:39:07 +00:00
drh
2c220455b9 Fix a NULL pointer dereference following an OOM error in the column name 
resolver. (CVS 6685)

FossilOrigin-Name: 3b46142532934d17aa136c2e56e58e7828df0f54
 2009-05-28 14:34:49 +00:00
drh
0b0745ae37 Make sure the column name resolver does not try to duplicate Expr.u.zToken 
when the Expr.u.iValue union member is the element being used. (CVS 6684)

FossilOrigin-Name: 376ecf0d87e4a2329f5861401f83ed9ceb35d528
 2009-05-28 12:49:53 +00:00
drh
33e619fc1c Additional refinements to Expr handling. Restore compression of trigger 
expressions.  Change Expr.zToken to Expr.u.zToken and added Expr.u.iValue.
Remove an unnecessary ExprDup from CHECK constraint processing.  And so forth. (CVS 6682)

FossilOrigin-Name: 4ac2bdfbb4230b6ceaae87e738fa61036bbe03cb
 2009-05-28 01:00:55 +00:00
drh
b7916a78ff Simplifications to the Expr object: Remove Expr.span completely and convert 
Expr.token into a char* Expr.zToken.  Also simplify the Token object by
removing the Token.dyn and Token.quoted fields. (CVS 6681)

FossilOrigin-Name: 7cb1c3ba0759539cb035978fdaff6316775986f3
 2009-05-27 10:31:29 +00:00
drh
3500ed6650 Make sure the left-shift operator never overflows. (CVS 6605) 
FossilOrigin-Name: 300da30178c46ab9f2ceb0c3e3ee3eac73d5d8e1
 2009-05-05 15:46:43 +00:00
drh
24fb627afa Record within the Token structure itself whether or not the token has 
been dequoted.  This steals one bit from the length of a token and
thus limits the size of tokens to 1GiB. (CVS 6589)

FossilOrigin-Name: 12bcb03d9b9e1a31c1a3c67cbb4263cc0af2f3d0
 2009-05-01 21:13:36 +00:00
shane
e34c647ed0 Added some asserts and a check for a null pointer dereference. (CVS 6337) 
FossilOrigin-Name: 6b0cabd017ed25530b2d918d2c069fcbdd60a3f6
 2009-03-05 04:23:47 +00:00
drh
d742bb78f8 Fix a bug in the GROUP BY alias name resolution. The bug was by 
check-in (6305).  Discovered by regression test on 64-bit linux.
Test cases added so that the problems is detected on 32-bit systems. (CVS 6332)

FossilOrigin-Name: fa0008502ec4f891bfed4a11f01650d274f95c44
 2009-03-02 01:22:40 +00:00
danielk1977
2d2e7bd32e Reverse commit (6315) for now. (CVS 6317) 
FossilOrigin-Name: 0e7c369c23a8767b4d3e5cdd47c14716992fb71a
 2009-02-24 10:14:40 +00:00
danielk1977
e2d7b24d08 Scan an index instead of a table for "SELECT count(*) FROM <tbl>" queries. Because an index is usually smaller than a table on disk, this saves some IO. (CVS 6315) 
FossilOrigin-Name: 294ba6f743c9132dce0e73da480bd3c2071e7239
 2009-02-23 17:33:49 +00:00
danielk1977
6ab3a2ec8a Changes to reduce the heap space consumed by triggers, views and tables in the in-memory representation of the schema. Also to reduce the space used by prepared statements slightly. (CVS 6305) 
FossilOrigin-Name: d9f6ffbc5ea090ba0daac571fc9a6c68b9c864e4
 2009-02-19 14:39:25 +00:00
drh
ea6788322e Never use strlen(). Use our own internal sqlite3Strlen30() which is 
guaranteed to never overflow an integer.  Additional explicit casts to
avoid nuisance warning messages. (CVS 6007)

FossilOrigin-Name: c872d554930ecf221ac2be5f886d5d67bb35288c
 2008-12-10 19:26:22 +00:00
drh
b27b7f5d3b More explicit type casting to silence VC++. (CVS 6006) 
FossilOrigin-Name: 14e6d19c3157ccdce170e769d678c7f472dd3db2
 2008-12-10 18:03:45 +00:00
drh
cd2b561302 Finish incomplete edit of resolve.c from check-in (5998). (CVS 6000) 
FossilOrigin-Name: 0d7e150e8c6cb801e68273c9d0793ce31d1f31fd
 2008-12-09 14:03:22 +00:00
drh
2bf90f1e64 A subquery in the result set of a SELECT should be able to look into outer 
queries to find variable references.  But a subquery in the FROM clause
should not be able to do this.  Ticket #3530. (CVS 5998)

FossilOrigin-Name: be03fa0543044dc46952695e963d9b82afed892b
 2008-12-09 13:04:29 +00:00
danielk1977
00e136135e Modifications to avoid unsigned/signed comparisons in various files. (CVS 5914) 
FossilOrigin-Name: 8009220c36635dd9b6efea7dc13281ca9625c40a
 2008-11-17 19:18:54 +00:00
drh
1885d1c201 When a name in double quotes falls back to being a string literal, 
make sure it has no affinity.  Ticket #3442. (CVS 5832)

FossilOrigin-Name: 81cfee5c14f241f5ae7f607d73b0b5cb821cda24
 2008-10-19 21:03:27 +00:00
drh
10fe840e4d Fix a memory leak on ORDER BY of a compound select caused by the resolver 
on a flattened query.  Also fix a OOM segfault in WHERE clause processing. (CVS 5801)

FossilOrigin-Name: d2c252d6bbde4ae14da6c9e6c2683d763d11c59f
 2008-10-11 16:47:35 +00:00