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95 Commits

Author SHA1 Message Date
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 5e26d07d62 Update test/fuzzdata8.db with recent dbsqlfuzz finds. 
FossilOrigin-Name: bce2ea393a872b5b70ef3b9cedce3d406725dcc56d8800ee4f7ec29562cc3f9b
 2021-04-29 10:48:50 +00:00
drh d8bc250b91 New dbsqlfuzz cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 88d20500c516fe89ad1cd42f7366ca190c3790f911f11ab332b86b675f5f69ba
 2021-04-26 22:30:49 +00:00
drh 113a33c539 Make window range queries more robust against corrupt database files. 
dbsqlfuzz f22df3a7b2aab0937a415484514fc2f68a293c99.

FossilOrigin-Name: 506333742103c1f440db5da819a36f3b518f7b49e94a7b74419b02bbcadc5a78
 2021-04-24 23:40:05 +00:00
drh d84f10ed13 New dbsqlfuzz cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 8da88508932e475c8c6af1553268ff02e3e013b78ccc94b14532ec928fc62537
 2021-04-23 11:50:23 +00:00
drh 7437c25b63 Add recent dbsqlfuzz test cases to test/fuzzdata8.db. 
FossilOrigin-Name: 6fe50dcc239d2d1fc2a38aa705f4c75cbe26b3e48d098537306d96d6a4005659
 2021-04-21 12:03:36 +00:00
drh 48a6aede46 Add new dbsqlfuzz cases to test/fuzzdata8.db. 
FossilOrigin-Name: d18793e589a4ee7706e994a1f3d24ba7df190467d92fa6ac040258f4debc149d
 2021-04-17 18:39:39 +00:00
drh 188ba3a979 Add new dbsqlfuzz-generated cases to test/fuzzdata8.db. 
FossilOrigin-Name: 1ac0a056a07895cc4ae62d01cbba5525402be3af3b8f97fd1dfaba2236ef912b
 2021-04-16 19:25:47 +00:00
drh 4ffaffe657 New test cases added to fuzzdata8.db. 
FossilOrigin-Name: 039ad662dd899048da04238c05b8cf384323f6e8c1087b96428ea9e20726c8c0
 2021-04-06 16:55:30 +00:00
drh 9ce612a66f Add a missing CORRUPT_DB to an assert in the OP_ResultRow opcode. 
FossilOrigin-Name: 82f92d79e1901911b0ce57d0aa30d462847748159443c7db8af16e6b37e8212c
 2021-04-05 22:30:56 +00:00
drh 319deefdb9 Fix an assert() in sqlite3BtreeLast() that needs an "|| CORRUPT_DB" term. 
Dbsqlfuzz case b92b72e4de80b5140c30ab71372ca719b8feb618.

FossilOrigin-Name: ad718388a1f6e25ceba43a40160fac0d9d9d3f26888e98d7b9db478c0b1780be
 2021-04-04 23:56:15 +00:00
drh fad1ad0526 Fix a harmless assertion fault resulting from [6e6b3729e0549de0] that was 
discovered by dbsqlfuzz.  Enhance .selecttrace output to show omitted
ORDER BY clauses.  New dbsqlfuzz test cases added.

FossilOrigin-Name: 27a0388ad616f80e8dcc986c247a5c23a8565dae9081b04ff85bac0d357e531b
 2021-03-03 14:07:52 +00:00
drh 9e673ace5b Improved corrupt database detection in balance_nonroot(). 
FossilOrigin-Name: 5d54d9fd406381383afdf10612bfd590afc4142215d9bca09e227e3aa5baa102
 2021-02-01 12:39:50 +00:00
drh 0a8b6a9f8f Enhance the sqlite3BtreeTransferRow() routine so that it does more careful 
checks for corrupt database pages.

FossilOrigin-Name: 85952e71175dae73c4e587a3b80783825d91fe8567a819e072da651c1ff4131b
 2020-12-16 21:09:45 +00:00
drh 9bb612f2c8 Fix a faulty assert() statement. Add new test cases. 
FossilOrigin-Name: 80ecdb3da4558bb08ee3ec6edbde906ad5b3b8182e672b5ba0d5dfa8041cee0a
 2020-10-02 12:42:51 +00:00
drh 53218e2e2c Back out a NEVER() that turns out to be reachable. 
FossilOrigin-Name: 8cf342d4e5eb67b17aee595d9d75f7798eccaebc1ec88e646d344d8d4ab64977
 2020-07-31 23:34:53 +00:00
drh bc2cf3b295 Early detection of freelist size corruption in incremental vacuum. 
FossilOrigin-Name: f25a56c26e28abd44373230c6b5763aed35c9a7648abede8a53409dccc0bee1d
 2020-07-14 12:40:53 +00:00
drh a1085f0640 Improved detection of a corrupt database schema. Fix for a problem discovered 
by dbsqlfuzz.

FossilOrigin-Name: 30735432bc33cb953b6d7d2a2de9eb378f9740e0e663f50c727c3f138cd43a2b
 2020-07-11 16:42:28 +00:00
drh d8d335d737 Fix a possible null pointer deref following OOM. Discovered by dbsqlfuzz. 
FossilOrigin-Name: cc888878ea8d5bc754c69de523819d32d6d9853857e31d7287f9dbfd723428db
 2020-06-26 04:34:28 +00:00
drh dc8339eaac Add a test case covering the previous check-in to the test/fuzzdata8.db file. 
FossilOrigin-Name: 95379da0e1ad5110648a5b3af24e7caab66a6f1ad6efdf374c83ae4ef1fed515
 2020-06-16 14:12:43 +00:00
drh 0dc90d43e5 New test case added to test/fuzzdata8.db. 
FossilOrigin-Name: 14a5cbddc887e23a684fabab1a213cce261bd6cffa0663d4f138b92d0b65b9c2
 2020-06-12 15:45:02 +00:00
drh 6aa7515c46 Remove a NEVER() that turns out to be reachable. 
FossilOrigin-Name: 44e573ecd5c2b60107133d60c51f3a04a3f904e9c1cf926e9b8ea977c7acae8d
 2020-06-12 00:31:52 +00:00
drh 896366282d Alternative fix to ticket [c8d3b9f0a750a529]: Prior to deleting or modifying 
an Expr not that is referenced by an AggInfo, modify the AggInfo to get its
own copy of the original Expr.

FossilOrigin-Name: 7682d8a768fbccfe0cc956e9f6481637146e1ab9763b248ff11052761ce32e32
 2020-06-07 17:33:18 +00:00
drh 856408abf4 Add the SQLITE_ENABLE_FTS3_PARENTHESIS option to fuzzcheck. Add a new 
test case that uses that option.

FossilOrigin-Name: c49a33db954f1a3fbc1889bbe9f3f3fdb8fb00e31aafb91cd6f5d1602db5c2b9
 2020-05-15 01:02:00 +00:00
drh 2493dcdd07 New test case in test/fuzzdata8.db. 
FossilOrigin-Name: fa11230135610f01c56d6f436f30a8b57a50b430fe7397ea3a0b6642986b3a39
 2020-05-11 11:11:25 +00:00
drh 91d4c374e2 New test cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 3fce9711a47329811cd333ae2f1d1384a96d73b9a5d6f9d08454a57a3fd24fc8
 2020-05-08 15:28:07 +00:00
drh 47f8ef32a0 Remove a NEVER() that could be true in sqlite3MatchEName(). 
FossilOrigin-Name: 921448f0e24a3753374b32be9d7bf36a9ca5d8522eff9f0b51dc243f08652419
 2020-04-04 11:58:22 +00:00
drh 2e52a9c611 In the push-down optimization, do not substitute columns that have previously 
been identified as being constant by the propagate-constants optimization.
Fix for ticket [51166be0159fd2ce]

FossilOrigin-Name: 70c44811d12f540d4ec1c29dedbe999cf79b82e326a8712ae2fa0725d6bd8a65
 2020-04-04 00:15:54 +00:00
drh a96a69b7db Add a test case to fuzzdata8.db for the recent Henry Liu bugs. 
FossilOrigin-Name: 42b02454b146ca1b04c0a5321465326435fc5b995f5498d3b1cf69c558a20f95
 2020-04-03 16:11:32 +00:00
drh a8781d9d93 Update the fuzzcheck test module so that it avoids inserting text values 
that contain embedded NULs in the XSQL table.  Fix some legacy entries in
the test/fuzzdata8.db that had embedded NULs.  Add in new dbsqlfuzz cases
that have accumulated over on the dbsqlfuzz project for a while.

FossilOrigin-Name: 47d4240c4a837e829f593bb2aad7563010838f55345e7a0d8e2ea79462aeeb3c
 2020-02-25 20:05:58 +00:00
drh 05e8c5407f Remove an ALWAYS on a branch for improved database corruption detection 
in btree.c:freeSpace().  Test case found by dbsqlfuzz.

FossilOrigin-Name: 54bf04811951db6c894f272f870e3e41f8f5e05a25c1115efbbdbd0d8bba54be
 2020-01-14 16:39:54 +00:00
drh 42925d1f1a Add an "|| CORRUPT_DB" term to an assert() statement inside of btree. 
FossilOrigin-Name: 03c1d75ddc063469fc856114595bd12d21759fe0979ce1ba1cf52e48e6b0d4a1
 2020-01-07 13:32:15 +00:00
drh 64f7ee0219 Remove another NEVER added by check-in [7b62555e285f32d3]. 
Dbsqlfuzz found another test case.

FossilOrigin-Name: 481f4956aff52797880930752693a8c0b10d7fdd71d86919fe8ee13c90ad5b81
 2020-01-04 17:55:01 +00:00
drh 4549a3b8cb Improve a testcase in test/fuzzdata8.db to make it more resilient. 
FossilOrigin-Name: 139aefe60097e06b43df35652e6b2183b7a4b03341d1bde23deada3fa3358fee
 2020-01-04 14:57:26 +00:00
drh e5cf3e990a Restore a NEVER and an assert in btree that was removed by 
check-in [7b62555e285f32d3].  Dbsqlfuzz found test cases.

FossilOrigin-Name: 04a05c83f58784df438dc6614f7920f782bf7c1ed4f6d101c03b6573cfde06ee
 2020-01-04 12:34:44 +00:00
drh 4cbd847a91 Fix the OP_Move opcode so that it correctly manages dependency tracking. 
This change impacts debugging builds only.

FossilOrigin-Name: 5377add4b8af8c52d0a32f5273835ac6bdc42cfb2a95ffcb335b987437a91aa6
 2020-01-02 15:02:08 +00:00
drh 629b88c683 Use OP_Copy instead of OP_SCopy to move the results of a scalar subquery. 
FossilOrigin-Name: 435c272dcf6ed5f3acb564b8f959557145f117b869547b670258cf5a1908ab6b
 2020-01-02 02:50:45 +00:00
drh 7505123fe5 Two new test cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 1be2c18f4021e1d0b8412ecb68a599475c717dd97c7db209fc4203358957fd70
 2019-12-28 11:55:44 +00:00
drh 0bb7af44a3 Add two new fuzzer test cases from dbsqlfuzz. 
FossilOrigin-Name: f8d5586a8ceca985dcb2d63d0fbad9e271e9e1664720ee698d4947acd5dcc543
 2019-12-26 01:02:02 +00:00
drh c7a5ff45b9 Backout the early VTable cursor close change from yesterday, as Yongheng and 
Rui have found a test case for which it fails.  The new test case is added
to fuzzcheck.

FossilOrigin-Name: ddb10f0374e66886d0681937b14cf0b4f100f03d3955b45b6c508dc6d9e36976
 2019-12-24 21:01:37 +00:00
drh 4eac5f04ab Extra defense against problems following an OOM. dbsqlfuzz find. Also 
import the latest dbsqlfuzz test cases.

FossilOrigin-Name: 0a70f5ddaf3567f335cc0fd0fcd5303e2afb5e38a6388faddf5cab1f2a74e3dd
 2019-12-24 15:01:17 +00:00
drh 9524a7ea9f When parsing a CREATE TABLE from the sqlite_master table, delete the CHECK 
constraints if there are any errors, since there might otherwise be attempts
to use those CHECK constraints if PRAGMA writable_schema=ON is set.
This undoes the fix in check-in [ea721b34477ab8b4] for a more general
solution.

FossilOrigin-Name: a982e6434cd66bfbe94d455f538bcbc4360b91572062d92acae6b77e9560e65d
 2019-12-22 18:06:49 +00:00
drh f4f31df02d When creating a new virtual table, ensure that the OP_ParseSchema opcode 
processes the correct entry in the sqlite_master table even if there is
a second entry with the same name and table values due to database corruption
and the use of writable_schema=ON.  Dbsqlfuzz find.

FossilOrigin-Name: 4dbb6e1cb094f3428c74ea8bdd86ab63341fecce978a062968ca01423f382e90
 2019-12-21 19:37:09 +00:00
drh b0cbcd0edf When a corrupt schema is loaded using writable_schema=ON, the CHECK constraints 
(or other expressions in the table definition) might not be fully resolved.
Ensure that the code generator can deal with this if the table is subsequently
used in a DML statement.  dbsqlfuzz find.

FossilOrigin-Name: ea721b34477ab8b49d182352c4bc198245933b850e9b6248b4f97600e80bb44b
 2019-12-21 14:09:30 +00:00
drh 40e9c8328e Load new dbsqlfuzz test cases into test/fuzzdata8.db. 
FossilOrigin-Name: 01aeeb5c4c70a0f19651448e94ad5c6810cab3d6957b5bc7a9b4b8e0b887f3de
 2019-12-20 14:24:26 +00:00
drh 1548d5276f Do not continue an ALTER TABLE tree walk of a subquery if a prior error 
is seen in the tree.  Report the problem immediately, without continuing.

FossilOrigin-Name: 01ca865f31c0c817ede7f357401ef76cf311ae662397908464f53e1c147f5b6b
 2019-12-20 12:55:21 +00:00
drh 0e5ce8029d Fix an assert() in btree.c that can fail if an INSERT is attempted on 
a corrupted database while in PRAGMA writable_schema=ON.

FossilOrigin-Name: 07beb3629e648e7feae4e786191514339ac1d8f6ba5bb6e7cc8a04bc1f1cd6ab
 2019-12-20 12:33:17 +00:00
drh fd6bf04bba Remove a reachable NEVER() in FTS3. 
FossilOrigin-Name: 8bd75bf636f72f32d66c6c38e1918f27daf2f13290f00a001f41d50838bbda47
 2019-11-17 00:08:24 +00:00
drh c72f2fb7fe More improvements to shadow table corruption detection in FTS3. 
FossilOrigin-Name: 51525f9c3235967bc00a090e84c70a6400698c897aa4742e817121c725b8c99d
 2019-11-16 23:47:40 +00:00
drh 94febb3a77 Improved detection of corrupt shadow tables in FTS3. Enable the debugging 
special-inserts for FTS3 for both SQLITE_DEBUG and SQLITE_TEST.

FossilOrigin-Name: 04b2873be5aedeb1c4325cf36c4b5d180f929a641caf1e3829c03778adb29c8e
 2019-11-16 21:40:49 +00:00