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100 ancestors of adc082c1461e0237

2017-07-17
19:25
When checking for the WHERE-clause push-down optimization, verify that all terms of the compound inner SELECT are non-aggregate, not just the last term. Fix for ticket [f7f8c97e97597]. (Closed-Leaf check-in: adc082c1 user: drh tags: push-down-backport)
19:14
Do not apply the WHERE-clause pushdown optimization to terms that originate in the ON or USING clause of a LEFT JOIN. Fix for ticket [c2a19d81652f40568c]. (check-in: 52674f94 user: drh tags: push-down-backport)
19:07
For FROM-clause subqueries that cannot be flattened, try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. Cherry-pick from [6df18e949d36]. Still need to backport bug fixes associated with that check-in. (check-in: 043d6ce8 user: drh tags: push-down-backport)
2017-07-08
01:01
Fix the covering index OR optimization (check-in [fcbd6abd]) so that it works with SQLITE_MAX_ATTACHED>30. Broken by a bad cherry-pick merge. (check-in: d227de8a user: drh tags: branch-3.8.9)
2017-07-05
16:20
Make use of covering indexes in the OR optimization. (check-in: fcbd6abd user: drh tags: branch-3.8.9)
14:54
Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: b7ae4b87 user: drh tags: branch-3.8.9)
2017-07-04
19:34
Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: d1ba2002 user: drh tags: trunk)
2017-06-06
18:22
Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 802b82f3 user: drh tags: branch-3.8.9)
18:20
Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 234ede26 user: drh tags: trunk)
2017-05-24
04:32
Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. (check-in: 19dad0a7 user: drh tags: branch-3.8.9)
04:18
Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. (check-in: cfb0d9e0 user: drh tags: trunk)
2017-05-22
00:27
When planning a query using sorting, resolve ties in the solver by selecting loop plans with the smaller unsorted cost. (check-in: 962531e7 user: drh tags: branch-3.8.9)
2017-01-11
14:21
In the STAT4 computations, ensure that the aAvgEq values do not go negative. (check-in: 4f83f680 user: drh tags: branch-3.8.9)
14:15
In the STAT4 computations, ensure that the aAvgEq values do not go negative. (check-in: f58f75b5 user: drh tags: trunk)
2016-11-02
16:29
When the block sorting optimization is used in a scalar subquery, be sure to exit the loop as soon as the first valid output row is received. Fix for ticket [cb3aa0641d9a4] backported to the 3.8.9 branch. (check-in: 8e4ba115 user: drh tags: branch-3.8.9)
2016-09-23
18:06
Fix the ORDER BY LIMIT optimization backport so that it works when the ORDER BY uses the DESC direction. (check-in: 0c3cafb7 user: drh tags: branch-3.8.9)
2016-09-14
01:43
Backport the ORDER BY LIMIT optimization to version 3.8.9. (check-in: db361482 user: drh tags: branch-3.8.9)
2016-04-25
02:20
When checking for the WHERE-clause push-down optimization, verify that all terms of the compound inner SELECT are non-aggregate, not just the last term. Fix for ticket [f7f8c97e97597]. (check-in: ec215f94 user: drh tags: trunk)
2016-01-30
02:10
Make use of covering indexes in the OR optimization. (check-in: 9de3d712 user: drh tags: trunk)
2016-01-13
17:50
When the block sorting optimization is used in a scalar subquery, be sure to exit the loop as soon as the first valid output row is received. Fix for ticket [cb3aa0641d9a4]. (check-in: cdbb0947 user: drh tags: trunk)
2015-08-22
01:32
Do not apply the WHERE-clause pushdown optimization to terms that originate in the ON or USING clause of a LEFT JOIN. Fix for ticket [c2a19d81652f40568c]. (check-in: 351bc22f user: drh tags: trunk)
2015-06-02
18:09
For FROM-clause subqueries that cannot be flattened, try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. (check-in: 6df18e94 user: drh tags: trunk)
2015-04-08
12:16
Version 3.8.9 (check-in: 8a8ffc86 user: drh tags: trunk, release, version-3.8.9)
2015-04-07
15:39
Avoid signed integer overflow when converting oversized in-line integer widths and precisions in printf(). (check-in: 8e4ac2ce user: drh tags: trunk)
14:38
Another change to avoid a problem caused by integer overflow in the printf() code. (check-in: 95625ef3 user: dan tags: trunk)
13:28
Further changes to guard against integer overflow in the width and precision of printf() arguments. (check-in: 5ce4e7d7 user: drh tags: trunk)
12:41
Guard against excessive width and precision in floating-point conversions in the printf routines. (check-in: c494171f user: drh tags: trunk)
2015-04-06
11:04
Fix a problem with fts3 prefix terms within phrase queries on "order=DESC" tables with a mix of negative and positive rowids. (check-in: 3ad829e5 user: dan tags: trunk)
09:05
Fix a problem with fts3 prefix terms within phrase queries on "order=DESC" tables with a mix of negative and positive rowids. (Closed-Leaf check-in: 0cdf5028 user: dan tags: fts3-prefix-query-fix)
2015-04-04
16:49
Fix a problem with resolving ORDER BY clauses that feature COLLATE clauses attached to compound SELECT statements. (check-in: edc1de2a user: dan tags: trunk)
16:43
Fix a problem with resolving ORDER BY clauses that feature COLLATE clauses attached to compound SELECT statements. (Closed-Leaf check-in: 427b50fb user: dan tags: compound-order-by-fix)
2015-04-03
20:33
Disable the SQLITE_FCNTL_WAL_BLOCK feature for now. It needs more work and is not yet ready for release. (check-in: 4ae9a3ac user: drh tags: trunk)
18:33
Add source code to the "showlocks" utility program in the tool/ subdirectory. (check-in: 6868cc66 user: drh tags: trunk)
2015-04-02
15:24
Disable e_walauto.test on OpenBSD, as it requires a coherent cache. (check-in: 90701227 user: dan tags: trunk)
2015-04-01
13:21
Improved detection and suppression of endless loops in clearDatabasePage(). (check-in: 30011ad2 user: drh tags: trunk)
2015-03-31
19:40
On windows, flush the mapping view when syncing content to disk. (check-in: a828e73d user: drh tags: trunk)
18:05
Add the "mptest" target to main.mk. Change TRUNCATE and PERSIST to DELETE for mptest.c on Windows because of problems trying to delete the journal. (check-in: ea697e6d user: drh tags: trunk)
17:32
Change the sqlite3_log() message generated on a retry after delay in os_win to be an SQLITE_NOTICE instead of SQLITE_IOERR. (check-in: 5d533eee user: drh tags: trunk)
17:01
Fix configure.ac and Makefile.in so that they generate pkgIndex.tcl correctly. (check-in: 3deff252 user: drh tags: trunk)
16:42
Minor tweaks to the MSVC Makefile. (check-in: 7244ea59 user: mistachkin tags: trunk)
16:33
Handle very large URI pathnames for in-memory shared-cache databases. (check-in: 586a94e8 user: drh tags: trunk)
15:15
Fix harmless compiler warnings in lemon.c (check-in: bbe7dcda user: drh tags: trunk)
14:31
Fix the corruptJ.test case so that it works with and without SQLITE_SECURE_DELETE. (check-in: 0c0ecfd6 user: drh tags: trunk)
14:18
Additional logging information output by mptester. (check-in: 0cbbf6e4 user: drh tags: trunk)
13:46
Add the "mptest" target to Makefile.msc (check-in: 1e814e0b user: drh tags: trunk)
11:42
Ensure that comparison operators do not mess up the MEM_Dyn flag on registers when reverting affinity changes. (check-in: 02e3c88f user: drh tags: trunk)
2015-03-30
23:43
Prevent a possible infinite loop when trying to DROP a table from a corrupt database. (check-in: 395bb3e6 user: drh tags: trunk)
2015-03-27
18:22
Merge updates from trunk. (Closed-Leaf check-in: 45acf6a8 user: mistachkin tags: winViewFlush)
18:20
Enhancements to OSTRACE usage in the Win32 VFS. (check-in: ab580029 user: mistachkin tags: trunk)
02:27
Fix the ".testctrl imposter" command in the command-line shell to be consistent in error reporting and results with the other .testctrl commands. (check-in: 0ec08ba8 user: drh tags: trunk)
00:21
Using MSVC, get the sqlite3IoTrace variable working with the USE_STDCALL and/or DYNAMIC_SHELL options. (check-in: fe976c91 user: mistachkin tags: trunk)
00:19
In the MSVC Makefile, make the DYNAMIC_SHELL option work without USE_STDCALL. (check-in: 25b46a9c user: mistachkin tags: trunk)
2015-03-26
23:36
When syncing a memory mapped file on Windows, flush the mapped view as well. (check-in: df204049 user: mistachkin tags: winViewFlush)
18:24
Revise Win32 locking test to account for recent log message changes. (check-in: 1bc76339 user: mistachkin tags: trunk)
17:04
Avoid leaving the malloc subsystem in a partially initialized state if the low-level initialization callback fails. (check-in: 3e872011 user: drh tags: trunk)
15:27
Provide source code line numbers for errors in the Windows VFS generated by the winLogIoerr() routine. (check-in: b5da0d93 user: drh tags: trunk)
14:29
Fix a harmless compiler warning in FTS3. (check-in: 1688f60c user: drh tags: trunk)
2015-03-25
18:29
Change an unreachable branch into an assert(). (check-in: fb076b28 user: drh tags: trunk)
17:35
Fix the saveCursorPosition() routine in btree.c so that it works correctly for a eState=CURSOR_SKIPNEXT cursor. (check-in: 37866b4d user: drh tags: trunk)
13:06
Reactivate an older assert() (adding an "|| CORRUPT_DB" term) and add a new assert() in btree.c. (check-in: 1e96520a user: drh tags: trunk)
12:05
Add two new assert()s to the sqlite3BtreeDataSize() method. (check-in: 42d1793d user: drh tags: trunk)
2015-03-24
22:00
Add SQLITE_STDCALL and SQLITE_CDECL macros on public function definitions. (check-in: cae3239a user: mistachkin tags: trunk)
21:54
Further simplifications to the amalgamation builder. (Closed-Leaf check-in: e826cd7d user: drh tags: stdcall)
21:52
Update the 'mksqlite3c-noext' tool as well. (check-in: a5322566 user: mistachkin tags: stdcall)
21:34
Fix a couple comment typos in a tool script. No changes to code. (check-in: 83421af6 user: mistachkin tags: trunk)
21:27
Add SQLITE_STDCALL and SQLITE_CDECL macros on public function definitions. (check-in: 242f09d4 user: mistachkin tags: stdcall)
18:19
Suppress a compiler warning that was appearing with SQLITE_THREADSAFE=0. (check-in: 436314b5 user: drh tags: trunk)
16:43
Prevent a virtual table from being destroyed while it is in use. Also: replace Vdbe.inVtabMethod with sqlite3.nVDestroy. Simplify the EXPLAIN output for P4.pVtab to only show the sqlite3_vtab pointer. (check-in: cbeb9a1a user: drh tags: trunk)
14:57
Add tests to check that attempting to DROP a virtual table while it is use does not cause problems. (Closed-Leaf check-in: 5ee625b1 user: dan tags: nVDestroy)
14:57
Simplify the EXPLAIN output of virtual table P4 parameters to only show the pointer to the sqlite3_vtab object and omit the sqlite3_module object. (Closed-Leaf check-in: 85610bbb user: drh tags: nVDestroy)
14:05
More defenses against virtual table being deleted out from under a running statement. (check-in: 116c9982 user: drh tags: nVDestroy)
13:32
Prevent a virtual table from being destroyed while it is in use. (check-in: fba674c0 user: drh tags: nVDestroy)
12:51
Replace the Vdbe.inVtabMethod field with the sqlite3.nVDestroy counter. (check-in: 9faefb96 user: drh tags: nVDestroy)
2015-03-23
21:32
Disable loadable extensions in the command-line shell on VxWorks user-space. (check-in: 0ee2d38d user: drh tags: trunk)
19:55
Track total memory usage using a 64-bit integer on 64-bit systems. Add the sqlite3_status64() interface. Make the sqlite3_status() and sqlite3_status64() interfaces atomic using mutexes and verify correct mutex operation using assert() statements. (check-in: 6fc4e79a user: drh tags: trunk)
19:16
Fix a non-C89 variable declaration that causes problems for MSVC. (Closed-Leaf check-in: 3de085ea user: drh tags: status64)
19:03
Fix datetype size asserts in btree.c. (check-in: ff4812d0 user: drh tags: trunk)
18:52
Add the SQLITE_PTRSIZE macro. Use it to help sqlite3_status() run faster on 32-bit systems. (check-in: c742bd60 user: drh tags: status64)
17:25
Add the sqlite3_status64() interface. Make the new interface and the legacy sqlite3_status() both atomic and threadsafe. Check threadsafety using assert()s. (check-in: 1ce8e8fa user: drh tags: status64)
2015-03-22
10:23
Fix a potential NULL pointer dereference following a syntax error. (check-in: 8d27e3e1 user: drh tags: trunk)
2015-03-21
23:38
Fix harmless compiler warnings with MSVC when assert() and SQLITE_MEMDEBUG are both enabled. (check-in: 9513dbd4 user: mistachkin tags: trunk)
22:23
Add more comments to the MSVC batch build tool. (check-in: 03522da3 user: mistachkin tags: trunk)
22:13
Increase the debugging level for the debug configuration in the MSVC batch build tool. (check-in: 041484ff user: mistachkin tags: trunk)
20:59
Do not invoke a C preprocessor macro with an empty argument, as (reportedly) some versions of GCC are unable to deal with that. (check-in: de9da317 user: drh tags: trunk)
20:50
Add a missing "int" on a constant declaration. (check-in: 235157de user: drh tags: trunk)
19:35
Avoid a segfault if NULL is passed as the first argument to SQL scalar function fts3_tokenizer(). (check-in: 6d098969 user: dan tags: trunk)
16:40
Change walblock.test to block an external process for 10 seconds, not 5. 5 seconds is not long enough to tell the difference between a blocking lock and a series of retries. (check-in: 717335fc user: dan tags: trunk)
16:36
Fix the blocking WAL lock so that it works and so that it compiles on a Mac. (check-in: 67d69d21 user: drh tags: trunk)
12:25
Remove an unreachable branch from the OP_VCreate opcode (merge accidental fork in trunk). (check-in: 2fbfec62 user: dan tags: trunk)
12:22
Avoid an integer overflow in fts3 causing gcc 4.7.1 with -O2 to behave counter-intuitively (perhaps because the behaviour is undefined). Add an "ifcapable trace" to a test in shell4.test. (check-in: e3e23464 user: dan tags: trunk)
12:22
Remove an unreachable branch from the OP_VCreate opcode. (check-in: 5fca41a3 user: drh tags: trunk)
10:53
Add a missing "ifcapable fts3" to a test case in vtab2.test. (check-in: d845b0f6 user: dan tags: trunk)
03:18
Correctly detect the error of having a "*" wildcard on a SELECT without a FROM clause on the left-hand side of a recursive CTE. (check-in: b11d1793 user: drh tags: trunk)
02:58
If a column is both UNIQUE and a PRIMARY KEY, make sure the PRIMARY KEY designation takes precedence. (check-in: d871a792 user: drh tags: trunk)
02:25
Remove superfluous define from the MSVC makefile. (check-in: 880d2513 user: mistachkin tags: trunk)
02:22
Improvements to the MSVC build. Fix harmless compiler warnings. Enable use of 'stdcall'. (check-in: 737630b8 user: mistachkin tags: trunk)
2015-03-20
16:54
Provide the BTREE_SEEK_EQ hint to the b-tree layer. (check-in: 3c367004 user: drh tags: trunk)
16:34
Fix to get SQLITE_SMALL_STACK working correctly again after the previous change. (Closed-Leaf check-in: 78df0ce1 user: drh tags: seek-eq)
14:57
Provide the BTREE_SEEK_EQ hint to the b-tree layer. (check-in: e750830f user: drh tags: seek-eq)
08:43
Fix a problem causing collation sequence names to be dequoted multiple times under some circumstances. (check-in: eddc05e7 user: dan tags: trunk)
2015-03-19
20:09
If a virtual table is created with a malformed UTF8 name in a UTF16 database, make sure that does not cause problems. (check-in: b74cb0a9 user: drh tags: trunk)