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6468990e7b
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22945 Commits

Author SHA1 Message Date
drh
6468990e7b Add the regexp() and regexpi() extension functions to the CLI. 
FossilOrigin-Name: 5d4535bfb603d7c8229ef60f99666459f2997e02e186bc1e52b7ec1320251d67
 2021-06-03 13:51:31 +00:00
drh
de30a3d2e1 Fix a bug in the regexp extension in which the "." wildcard would match 
the 0x00 terminator at the end of the comparison string.

FossilOrigin-Name: fa23108b299fc70e80540c449500e50ac6344a152f4f6b9c1b1f568bbda8f6e1
 2021-06-03 13:44:19 +00:00
drh
75f7317722 Fix the case-insensitive version of the regexp() function so that it does not 
use the prefix optimization incorrectly.
[forum:/forumpost/983b43ef8e|Forum post 983b43ef8e].

FossilOrigin-Name: 1a8e43cc1b7969c40140dd7fd481d5ffd9de80e214eb494567c286d93a2b06e5
 2021-06-03 12:31:08 +00:00
mistachkin
f9ac1ab1e7 Fix issue in 'mkopcodeh.tcl' tool that prevented its termination in rare circumstances. 
FossilOrigin-Name: a8d921136f8ab132279984a77d0eeaf355342cdb0a98d7e1e59c8e6c8ed9459c
 2021-06-01 21:07:49 +00:00
dan
b56a09079e Fix a problem with running ALTER TABLE against schemas that contain compound SELECT statements with ORDER BY clauses containing one or more references to the second or subsequent component SELECT statements. 
FossilOrigin-Name: 587a3044468a40707c714d013cb766d8a4d9eb13bb20871846a0e8c34bea8cf4
 2021-06-01 15:37:14 +00:00
drh
d65b7e36ec Do not confuse the ">" operator with IS NOT NULL when checking to see if 
a partial index is usable.
[forum:/forumpost/d813704d7c|Forum post d813704d7c].

FossilOrigin-Name: 8cc23931d61b7d78521acce93fc2603649c5813c7a0869cb2c1bde2c8c4e51b4
 2021-05-29 23:07:59 +00:00
drh
d36bcec9ad Fix a subtle error in an assert(). 
dbsqlfuzz eefbd0215c0c1b4bcc32b8141b48b35f7b431300

FossilOrigin-Name: a5ec81eb49e55fc03591666f336c09e5469785c8680f253ec3cc5366ac2fa45a
 2021-05-29 21:50:05 +00:00
drh
e9de65201c Make a deep copy of the result of a subquery in case the subquery is 
reused.  Fix for the problem reported by
[forum:/forumpost/28216b36ac|forum post 28216b36ac] and introduced by
check-in [f30fb19ff763a7cb].  Further changes to try to optimize the new
OP_Copy opcode back into either OP_SCopy or OP_Move will be attempted
separately.  A test case will be in TH3.

FossilOrigin-Name: c9f0b9cb0aef107265435e22c164dd3c974eadfd00abf7cfd4fc7ec95c0dd7d0
 2021-05-28 12:48:31 +00:00
drh
d2f55773f1 Fix a potential memory leak in json_group_object() following an error. 
dbsqlfuzz cd32630de3ff039d97089592b63cb3616f8ec9dd

FossilOrigin-Name: 21676731cedae27d1ab9fe62b269001ae6e3eeb3caa87b4f5536f777631a8bbc
 2021-05-28 12:15:19 +00:00
drh
48a296c589 Add the merge-test.tcl script to ease verification of LTS branches. 
FossilOrigin-Name: f958ffbc61c693b71538cc3aa5f95ce0f0b5d4906efbb0c075f543e19883a669
 2021-05-27 16:31:04 +00:00
drh
342cb33b23 Improved comment on the prpagateConstants() routine. No changes to executable 
code.

FossilOrigin-Name: d61a875df48d8baab3ada0174c8e0312a9268bbd11bf104b4385eff9e2744266
 2021-05-27 14:09:01 +00:00
drh
48f4f27cfb Remove a NEVER that is reachable following OOM in writable_schema=ON mode 
with a corrupt schema.

FossilOrigin-Name: 4eb80b0cc61526c1ff7478b1b855b29fa4326daee61facd1d85e4297bb32ac9d
 2021-05-27 10:23:16 +00:00
drh
7d11e647ad Improvements to the constant-propagation optimization in order to better 
deal with unusual affinities.  See
[forum:/forumpost/6a06202608|forum post 6a06202608] for more detail.

FossilOrigin-Name: 9be208a6d70582c6808abe6e016ab9cd8d10f0deefb8c7a8c0543372cca15b12
 2021-05-26 23:10:19 +00:00
drh
a8ed515400 Minor optimization to opcode comparison logic in the fixes to 
the constant-propagation optimization on this branch.

FossilOrigin-Name: f17dec40a0ccc044bd32e035fc10797552329af242408a45f36125ed8d2ef088
 2021-05-26 19:52:21 +00:00
dan
c3b48848b3 Add new test file whereM.test. Containing tests for the change on this branch. 
FossilOrigin-Name: c4c76b824c41afb5b4d7b397c4d3142698aa303ea3a368c0cc7af4884e3a10bd
 2021-05-26 19:37:27 +00:00
dan
40b82f9dc6 Avoid assuming that an expression like "x=10" in a WHERE clause implies that CASE(x AS TEXT)=='10'. 
FossilOrigin-Name: 389ec669f416c74d651e25572f6e007c2a62ddd4027524f553107b06db5c55eb
 2021-05-26 18:51:57 +00:00
drh
14c4d42874 Take care that the code is not generated for the same Select object more 
than once, as transformations that apply during the first pass might
cause problems for the second pass.
dbsqlfuzz 836b625cd8a41809ef80fc7ebaa6554357bcb463.

FossilOrigin-Name: f30fb19ff763a7cbe768ea49954704e14d6400f69bb4257c9c890e1564e14835
 2021-05-26 18:46:51 +00:00
dan
151446e793 Update an assert() in wherecode.c that might fail following an unrelated SQL error. 
FossilOrigin-Name: 3e2c36a8272ab3c1777638c0ed8222e7ff04657fe1c40f74a63b99a5a90258cc
 2021-05-26 14:32:33 +00:00
dan
137b8ebb2b Do not run sessionbig.test as part of the session_strm permutation. It is too slow. 
FossilOrigin-Name: 708ce7ad8acee702d08d1987aa253b0bfc3fd97255d6e4153122b03eba337570
 2021-05-25 16:10:12 +00:00
dan
4df68e0ae5 Update an allocation routine in the sessions module to allow it to allocate the maximum size permitted by sqlite3_realloc64(). 
FossilOrigin-Name: 0b45e821911e4a852edd6d9e9cfe5f9de33337edf76fb12b79adaf11a4b83e8a
 2021-05-25 15:21:54 +00:00
dan
78a9d7551c Enhance the shell tool ".dump PATTERN" command so that it dumps the contents of shadow tables when a virtual table is identified by the PATTERN. 
FossilOrigin-Name: b0bc5ab9ceec496ac260ccfd53b51a2b53a81576fbe04c97b99f6705b063c59f
 2021-05-25 11:39:14 +00:00
dan
c00727ab58 Fix a problem in the in-memory journal code that could occasionally lead to a segfault when a sub-transaction that modified zero pages was committed. 
FossilOrigin-Name: 17960165f5840cab45b7a8bb02779ebfb321c68f33ec6da9ab14063ccd134fa4
 2021-05-24 14:35:19 +00:00
drh
0fcf6f01e7 Minor comment improvements in fuzzcheck.c. 
FossilOrigin-Name: 7aca8d52c16c2192d9c1ff03a976c482a60365cef8d2474b540ff4c84e8737b4
 2021-05-24 12:28:13 +00:00
drh
b6b06bb339 New dbsqlfuzz cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 5bb5c9ec049488f95e47bbd9f1db9038ffabad3cfafa613acdaa790ab4034eee
 2021-05-24 12:13:10 +00:00
drh
bf7f3a005e Fix the TreeView module so that it works with the TK_ERROR exprssion. 
Also fix an assert() that was failing due to the recent TK_ERROR addition.

FossilOrigin-Name: dd56fbe0cfb0f7848190ce097b378321dd25ae509c7edf93682b091014824fc6
 2021-05-24 11:35:16 +00:00
drh
0542812726 Additional defenses (above and beyond [b986600520696b0c]) to prevent an 
invalid subquery from causing problems downstream.  If an error is found
while analyzing a subquery expression, change the expression to TK_ERROR
so inhibit further processing on that expression.
dbsqlfuzz cf624b8c0484c66e0f552bf6475e3e3f2c22b24e.

FossilOrigin-Name: 0be6b6c9f7c562e764792a4a5eb53ed11b230174b19361f7cd7778c743314bbd
 2021-05-24 00:17:04 +00:00
drh
7cc73b399e Do not push a WITH clause onto the processing stack if prior errors have 
occurred.  dbsqlfuzz 6b7a144674e215f06ddfeb9042c873d9ee956ac0.

FossilOrigin-Name: c2066dde53b9872dbb991e27419dd031791c942fe23826556f52efbd66c51662
 2021-05-23 17:47:04 +00:00
drh
5e1a7ded4d Do not invoke sqlite3ExprAffinity() after a syntax error that might have 
left the tree in an inconsistent state.  See also [e8a1515b44380cc5] and
[forum:/forumpost/7e484e225c|forum post 7e484e225c].

FossilOrigin-Name: b986600520696b0c91c4ccc6aff1b698391b4bcaf8a3ea436be1967883faa2fe
 2021-05-22 11:23:20 +00:00
drh
ff9186137d The fix in the previous check-in was only correct if the OOM occurs on 
the initial allocation.  This changes should make it correct for a resize
as well.

FossilOrigin-Name: 57087ab2f297e4d96da5b9f3b89a26d8dd2bc4d22c2be8045b5d956d86282f39
 2021-05-22 11:00:03 +00:00
drh
d42dbd9dfe If an FTS5 Cursor fails to enlarge the space for the aInst array, set the 
size of the aInst array to zero.
dbsqlfuzz 294254b8105cca409f27a711f1eb2e9e63cbcac5.

FossilOrigin-Name: 4ae5e5b5ecbce580d3f7f970076e828fc6fb5fbcdc3bbe8381ab38f52870a54f
 2021-05-22 01:30:30 +00:00
drh
93c8139c1a If there are errors in a nested CTE, be sure to abandon processing. Do not 
continue since the parse tree may have been left in a goofy state which could
cause use-after-free and segfaults.
See [forum:/forumpost/aa4a7a3980|forum post aa4a7a3980] for an example.

FossilOrigin-Name: 94225d693932eb0b5d7799d40513afbd31ed40e1e156675eb92ad7216f1ff20f
 2021-05-21 21:49:07 +00:00
dan
acef1abda2 Fix a problem with SQLITE_MAX_MEMORY in malloc.c. 
FossilOrigin-Name: c18dbe2f389f4ba7b219b7995d4f7009d1bc249ef8f93a30b262c6d2c008319d
 2021-05-21 16:41:22 +00:00
drh
ec2f689b21 Fix a faulty assert() statement in sqlite3ExprListDup(). This is a continuation 
of the fix at [59812e7ef705226c].

FossilOrigin-Name: 240f7494bfa3e0806ae2f971e78039c62a419de647cb9e807309f90e1d2a536d
 2021-05-20 23:25:28 +00:00
drh
a76b7f5296 Enhance one test case to use various alternative definitions of DUAL. 
FossilOrigin-Name: 179dcb6ba771f0e94e06b5e3c5534d8005d27b2c9b4601be20fd68abfbc5dfd0
 2021-05-20 18:11:45 +00:00
dan
90bc36fb30 Ensure that objects within view definitions are not incorrectly resolved to CTEs that are part of the statement using the view. 
FossilOrigin-Name: f7dcc4b5197c6413be31384b390bb98a737d3f9edb7964433448c3b90b35a436
 2021-05-20 17:15:06 +00:00
dan
a8f249f1e7 Ensure the required b-tree mutexes are held for "CREATE TABLE IF NOT EXISTS" and "DROP TABLE IF EXISTS" statements on attached databases. 
FossilOrigin-Name: 67bde01614edd944b769ab28488bac1dbbf17d88beee62ca7f1e45681aa3d402
 2021-05-20 11:42:51 +00:00
drh
cd1499f47b Replace [0f0959c6f95046e8] with a new and better solution that also fixes the 
CTE name resolution problem described in
[forum:/forumpost/8590e3f6dc|forum post 8590e3f6dc].
Test cases for both problems added.

FossilOrigin-Name: 5614279daff5007d6e047c5c1b3cc82ba80a5c91c529525b0fe68b79ee82dd2c
 2021-05-20 00:44:04 +00:00
drh
5da5b71435 Fixes and improvements to PRAGMA compile_options. 
FossilOrigin-Name: 34579549a3bc1c2cfbf47a4770c1d7abc97869ba57bcd3ab1515765ca505ea05
 2021-05-20 00:10:24 +00:00
drh
1168f81092 When constructing the synthensized SELECT statement that is used to choose 
the rows in an UPDATE FROM, make sure the first table is really the table
being updated, and not some common-table expression that happens to have the
same name.  [forum:/forumpost/a274248080|forum post a274248080].  More
changes associated with CTE name resolution are pending.

FossilOrigin-Name: 0f0959c6f95046e8e7887716e0a7de95da18d1e926ab1f919527083a56541db5
 2021-05-19 21:55:56 +00:00
larrybr
14e250ac16 Incorporate ..._DESERIALIZE revision. 
FossilOrigin-Name: b70587cca9e4f0116621e27362186e9329bcea8016c6565cd3ec5a9bf4a99d46
 2021-05-19 20:01:53 +00:00
larrybr
4f878f33a9 merge from trunk 
FossilOrigin-Name: 19ffe3cfe278a4046f32df56f75080c2377e4c44ad40a02d39db8e7701526204
 2021-05-19 19:55:10 +00:00
drh
1f4f7c7a41 Add a comment with useful information about SHM locking. No changes to 
deliverable code.

FossilOrigin-Name: 4e81ea3b15fb3fce5f31b77273639e748a735ab0970620e564e9a5c977b24a1a
 2021-05-19 19:28:48 +00:00
drh
04f4b6836b Fix a formatting error on the comment. 
FossilOrigin-Name: 6f2fb60e499fc758bea6ffec030fef8ab5f97d08d31450f0b3ffafc20e652891
 2021-05-19 19:27:42 +00:00
drh
187e2e48a8 Add a table of shared-memory lock offsets in a comment in the os_unix.c code. 
Include some assert()s to help verify the numbers.

FossilOrigin-Name: b480aacb3430a789d98ffd81a1886bbbc3cda5b0e736ec9a3e2b463db2a3b3ad
 2021-05-19 16:55:28 +00:00
dan
3d691fd9ff Allow aggregate sub-selects within ORDER BY and PARTITION BY clauses of window frame definitions. 
FossilOrigin-Name: 3daab94977af5e8a95690acc555540311403d890a3261a9757c633fcaaf428a9
 2021-05-19 14:49:51 +00:00
drh
9088186bfb Improved column name and column type determination for the RETURNING clause. 
FossilOrigin-Name: 699c33990a9438f28673ecf34f1e521d1af0b01c6ee30a608c0c91d2d593590e
 2021-05-19 12:17:03 +00:00
larrybr
99bd552503 Cure some TCL test failures and narrow an object scope. 
FossilOrigin-Name: 1155696c700862de1a8b1318bc41cd5cd01dec1af2c7720d8ef1e5c3321c425d
 2021-05-19 02:33:42 +00:00
drh
93ffb50fcd In the MULTI-INDEX OR query plan, code for sub-expressions can sometimes be 
generated twice.  But for some subqueries, generating code off of the same
tree twice causes problems.  So now MULTI-INDEX OR makes a copy of the
sub-expressions it uses to avoid code-generating them more than once.
dbsqlfuzz 9ebd2140e7206ff724e665f172faea28af801635.

FossilOrigin-Name: 4a55f72542c8bcc80253aa77043314cecb29d73cb4f51aa80f7811e86cc8ef68
 2021-05-18 19:10:10 +00:00
drh
e74ca517b4 Improved comments on the generated opcodes.h file. 
FossilOrigin-Name: f2a17f1fad08779486e4d50d0d9277c7f87a9558a53af1a68aa5fe2ec30e820e
 2021-05-18 12:36:35 +00:00
drh
8ed1da195a Add a CORRUPT_DB term to an assert() added earlier today. 
FossilOrigin-Name: 304739d2382446e7b698d67377679168e46f0a19bb0794fdf22d0a0a84a8cbcc
 2021-05-18 00:52:06 +00:00