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7d23d157bba50d9fedeb32badeac75d4cb78eeee
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16934 Commits

Author SHA1 Message Date
drh 7d23d157bb Improved the ability of the CLI to handle very long input lines. 
Potentially a fix for the bug reported by
[forum:/forumpost/fa4bb2941a|forum post fa4bb2941a].

FossilOrigin-Name: d0e107ee00101f42b4c9bf372625311d04b83c96a4a9caacac866ea03d8e7fa4
 2022-10-11 12:02:42 +00:00
drh c9ef12f62b Code clean-up for the integrity_check enhancement. 
FossilOrigin-Name: a140173102febe9ef8064ee9b95bee489db54caba149e577d69e4d75161bf390
 2022-10-10 21:21:04 +00:00
drh db6940ab45 Fix corner-case bugs in the new integrity_check logic. All tests pass now. 
FossilOrigin-Name: dbab9d52a842085da67f5d0b8e96c665adc16331accf380b4c234e9b05bdb7fb
 2022-10-10 19:38:01 +00:00
drh 49d77ee642 An attempt to enhance PRAGMA integrity check so that it does data type 
checking on non-STRICT tables.  Specifically:  (1) Columns with TEXT affinity
should not contain numeric values, and (2) columns with numeric affinity should
not contain text values that can be converted to numeric.

FossilOrigin-Name: 8b1e7f0524637728cebe81c7d3ff8ad8a5a55782eac6409b425dad538024f596
 2022-10-10 18:25:05 +00:00
drh 005c9d8295 Improved detection of database corrupting when moving pages on an 
autovacuumed database when creating a new btree.
dbsqlfuzz 9a55397eae13cec64aebf1fd35489c3a90bdaac5

FossilOrigin-Name: 327965bc71023d9380a9d6805062659108dab4bfcd386b7aba813754f270d33a
 2022-10-10 12:02:53 +00:00
drh 211a1a7281 When casting an odd-length BLOB into a TEXT with encoding UTF16, omit the 
last byte.  dbsqlfuzz c5df68b5bbdf6c9f3c1851e41e88f49ac05c9969

FossilOrigin-Name: 1e2796b3741a4c0b966e6c01a7d62dea8de9d1f4bededea3d7ba7004dabc2ffe
 2022-10-08 17:27:05 +00:00
dan 73c586bcbf Fix a problem causing the seek-scan optimization to skip over valid rows that could occur when it is used with expressions of the form (a IN (?,?..) AND b >= ?). dbsqlfuzz ab1db6dc0efb04cba1cd3431ee6da4894fdc4520. 
FossilOrigin-Name: 63d9efe277759d4daa29794846b60c6f55491496618f423f61468df72d0a4633
 2022-10-07 18:57:15 +00:00
drh 8a2254fa1f Improved tracing output for showing all registers used by the 
OP_SeekGE opcode.  This applies to debugging builds only.

FossilOrigin-Name: 0aa6dee7f72279114a47cbb69fdbda0b916a2c365f7a147946869f167bd018b7
 2022-10-07 15:55:35 +00:00
dan 73ac958c74 Fix a problem that occurred when using a bloom filter to optimize an (ipk = ?) lookup in the case where the RHS of the expression is a TEXT value. First reported by [forum:/forumpost/f61a8b7053|forum post f61a8b7053]. 
FossilOrigin-Name: 8e14c351b29bb434ac4e2510681e95716424a73e340d39feff4919f0431c2e00
 2022-10-06 14:10:11 +00:00
drh 2eca06141f Attempt to clarify the operation of the xLock and xUnlock VFS I/O methods. 
Assert() statements added to prove that they behave as the documentation says.

FossilOrigin-Name: 3efa811251d4510a074231a1e0b667783cc5f90777466b9dcae675cd9892b423
 2022-10-04 14:50:46 +00:00
drh a4b2f41938 Change the name of the autoconf-generated configuration file from "config.h" 
to "sqlite_cfg.h" to work around a bug in a dependency checker, reported
in [https://twitter.com/josecastillo/status/1577136108097314816|a tweet from Jose Castillo].

FossilOrigin-Name: 897e187cad981126fc5f6ea8e382e937825af10b0c9589b0a23b9fbaa4ca58b8
 2022-10-04 10:35:10 +00:00
stephan 65e6522f8f Minor doc typo fix in sqlite.h.in. 
FossilOrigin-Name: 372802aaa22a830bf498bb0d9561ae02b32e5e191c4d7d771ea152140f6685a1
 2022-10-02 20:13:46 +00:00
drh 7d34b8d628 Performance optimization in sqlite3_prepare() (discovered while working 
on the stmt-cache branch).

FossilOrigin-Name: cd494240cc6184bb028d1f1049086f57c0a71a43d7ed1405fd4205240e1b9e61
 2022-10-01 20:27:29 +00:00
drh 7424aeff41 Replace the Parse.disableVtab field with Parse.prepFlags for increased 
generality, a small size reduction, and a small performance increase.

FossilOrigin-Name: b7da0bcdf70e53ab1ec00a0694e17c7429e23bc6eb3f39b622d06a930aa2f6a3
 2022-10-01 13:17:53 +00:00
drh 7bc6a818f0 Remove one of the NEVER() macros added by [5166acf3f0040459] because it 
is reachable after all.

FossilOrigin-Name: bd8ae5febbb8d3122f1e2e09b9fcdd6ac20c075ae1cf60bcdbd36080f3736417
 2022-09-30 22:40:57 +00:00
drh 2d3261fe86 Fix a bug in the demoDelete fix from [d76a301e22e05722]. 
FossilOrigin-Name: 7e761a02530ffbb055a766eb6c995f11fc2adbabb9a52502124f672fdcff0d10
 2022-09-30 20:53:36 +00:00
drh 0a803bd984 Add NEVER() to two error-detection tests that were made unreachable by 
the previous check-in.

FossilOrigin-Name: 5166acf3f00404597e77910aee88920ab833af8447766f50bf4f70525606cf95
 2022-09-30 20:48:22 +00:00
dan ad658b2d82 Better handle a case of database corruption where a b-tree page is one of its own ancestor pages. 
FossilOrigin-Name: a24e46804893a7e6e8f3130abca882f9a3aa3b7b2b82aa39a0a20856172766d5
 2022-09-30 20:15:21 +00:00
drh cb57716c65 Improvements to the "demoDelete" method in the demovfs, suggested by 
[forum:/forumpost/cad18961c2|forum post cad18961c2].

FossilOrigin-Name: d76a301e22e0572262917dfe9557a5051339a65416a473dd2d9989a49975403e
 2022-09-30 14:35:18 +00:00
drh 5d48e0cdc5 Provide the SQLITE_MAX_ALLOCATION_SIZE compile-time option for limiting the 
maximum memory allocation size.

FossilOrigin-Name: 584de6a996c78b8e41bdfcd05a8e2a3844664c6b4efedb5883c8b8af388462b5
 2022-09-27 16:35:06 +00:00
drh 80cf891792 Enhance defensive mode so that it disallows CREATE TRIGGER statements if the 
statements within the trigger attempt to write on a shadow table.

FossilOrigin-Name: 3283bbd12a60f472ed03cb7c6209a605a3bf9f3d9083371e17840b56e8b3f559
 2022-09-27 00:56:45 +00:00
drh f333370e1f Reduced and improved comments on the constraintCompatibleWithOuterJoin() 
function.

FossilOrigin-Name: 38aaf26e082bd95df6b64df43e1772fe6e20c4eb71307dcd97559cac7f11f8f1
 2022-09-21 18:21:31 +00:00
drh faaacd3fbb Break out the decision of whether or not a constraint term is usable by 
an outer join into a subroutine: constraintCompatibleWithOuterJoin().

FossilOrigin-Name: c7fbc9b0453050e2746af27e3a11e0c3701bef8c56da8e19173242c6ea3aff8b
 2022-09-21 00:16:59 +00:00
drh 0f51aa3972 Do not allow EP_InnerON terms to be used on a outer join. 
FossilOrigin-Name: f47aa745690c018800243bf76930b2499ff4537411c4e27b4b16ba3854cc2bf8
 2022-09-20 22:19:13 +00:00
drh 8b9a3d1fc8 Modify the OP_IfNotOpen opcode so that the jump is taken if the cursor is open 
but was previously set to a NULL row using OP_NullRow.

FossilOrigin-Name: 1292d68caa7086610ddda343f3852e63de8da1eb66536ee4716b6529f5a31bc6
 2022-09-20 19:22:17 +00:00
drh 5a0771a1f4 Remove code that has been previously commented out. 
FossilOrigin-Name: 852b385a5de622aa32026824210d4bd23db52a4a8a697b83d22d6000edeba487
 2022-09-20 18:18:00 +00:00
drh 40c9becc81 Is the query flattener restriction 29 (do not allow both EP_InnerON and 
EP_OuterON constraints on the same FROM clause term) really necessary?   This
branch explores what happens if we omit that restriction.  This is an effort
to address the performance regression reported by
[forum:/forumpost/96b9e5709cf47cda|forum post 96b9e5709cf47cda] that is caused
by flattener restriction 29.

FossilOrigin-Name: 19270577ad1d08c9e6e5f0600396b8a1ccda9df1e67a0df845aee6b60437f379
 2022-09-20 16:57:49 +00:00
drh b22b493338 Clarify comments that describe query flattener restrictions associated with 
outer joins.  No code changes.

FossilOrigin-Name: 2647d73bb1876d01851f52cb3fd6af08a962ab336b6d51c160d27b1baf94f75f
 2022-09-19 19:25:15 +00:00
drh 316cd40122 Fix a minor comment typo. No changes to code or documentation. 
FossilOrigin-Name: 8032db4ade66f70a102abb9d3a49e20620e204c45ad7a954a49d20403985bf07
 2022-09-19 17:41:59 +00:00
drh bcdb4cc71b Remove a NEVER macro in defragmentPage() that dbsqlfuzz discovered can be 
true.  crash-32d9312f145cdce41613573f6431d9a3e439e3d7

FossilOrigin-Name: 90403759e1cf30f7c11fa8170d6df59a0dd138e1de59d2b60bec7ba15d74f67c
 2022-09-18 17:59:28 +00:00
mistachkin bdb6368d72 Fix harmless compiler warning seen with MSVC. 
FossilOrigin-Name: 73c4c68d3b4c16caf8281dabddd7365d24691e5ee2da89b1783eca66bfbd9280
 2022-09-09 17:50:29 +00:00
drh b53e0992b2 Enhance an assert() to impose for tighter constraints on the operation of pcache. 
FossilOrigin-Name: 42105eb43a916a7cd839fa6c582eaffaef17f50b23c3e05142400c379feb73c7
 2022-09-07 20:11:22 +00:00
drh 8c983ddb67 An improved technique for ensuring that the Rekey() operation does not 
overwrite an existing page number.  This approach does not change the
semantics of the underlying pluggable pcache and it is easier to prove
correct.  This replaces the changes at
[aadd38f99a3e5abc] and [81cff9f1955874aa].

FossilOrigin-Name: 7dbddde79e3ca1b81e00288616fc27434698ce6dcb47714728fce8602ae91f45
 2022-09-07 19:28:18 +00:00
drh 6e440ab3de Fix the windows build so that it works with -DSQLITE_OMIT_AUTOINIT. 
FossilOrigin-Name: f74a5ea8c986dc33d3afcda169c38abbe55728c56716cf9991a5e2ef7fc4917a
 2022-09-05 18:17:03 +00:00
dan ad617b4d6d Ensure the Pager.journalOff variable is zeroed if an error occurs while writing the initial header to the journal file. 
FossilOrigin-Name: da7af290960ab8a04a1f55cdc5eeac36b47fa194edf67f0a05daa4b7f2a4071c
 2022-09-02 21:19:24 +00:00
drh 173b418e60 Fix an assert() associated with the dbsqlfuzz error at [8372468bb5d8922c]. 
FossilOrigin-Name: 54251f81ebc43839cc97f91d2df4c320c1b96b5690cc11ce45b60c087c9becd6
 2022-09-02 17:25:25 +00:00
drh 5fc3a8a32f If sqlite3PcacheMove() really performs a swap, then be sure to renumber the 
second page.

FossilOrigin-Name: 81cff9f1955874aade55daa94263f58f06d966bd51ad558755f92777069a7347
 2022-09-02 15:09:55 +00:00
drh 4e9bf5ace3 Enhance the pcache1 implementation so that during an xRekey operation if 
another page already exists at the destination, that other page gets moved
to the source key.

FossilOrigin-Name: aadd38f99a3e5abcf9bef49f4367752f163cc79500a28f812bb71969d7de419c
 2022-09-02 14:29:54 +00:00
drh e04c9f4b33 Mutex protect access to the sqlite3_test_directory and sqlite3_data_directory 
global variables.  See
[forum:/forumpost/719a11e1314d1c70|forum thread 719a11e1314d1c70].

FossilOrigin-Name: 8e6ad3a3e942a326cf16432e16d6596c7206c05b6f45cd0ff3a9b836bcfc9deb
 2022-09-02 11:45:26 +00:00
drh fee6431392 Improved mutex protection of the sqlite3_temp_directory and 
sqlite3_data_directory global variables.

FossilOrigin-Name: ebbe9634d6dde9e097f61fb98a79111e46de422b7bbbd9ed3af7b6f22aacf5ec
 2022-09-02 11:12:16 +00:00
drh 18a3a48db1 Experimental changes to put sqlite3_temp_directory behind a mutex. 
FossilOrigin-Name: 5ee3515fbb88bf1ae5f8b507844f82dcc429380b6ebeab9b09b52b25ee60a60d
 2022-09-02 00:36:16 +00:00
drh 44132244fa Defer deleting a transient SELECT statement associated with a flattening 
of one arm of a compound SELECT until after the parse has completed.

FossilOrigin-Name: 1c4157c71cd1e062a9c2c79787d17e34e340f28ce1e40573851dfe174f5da7d7
 2022-09-01 13:51:09 +00:00
drh a3fc683c80 In the query planner, add a heuristic that will reduce the cost of a full 
table scan for a materialized view or subquery if the full scan is the
outer-most loop.  This is shown to speed up some queries.

FossilOrigin-Name: 609fbb94b8f01d6792e5941ab23ce041313d359f6788c4dde6b1ca749ab49137
 2022-09-01 10:29:02 +00:00
drh 9c3a114ca0 Enhance the b-tree page sorting code to ensure that sqlite3PagerRekey() never 
overloads a page number and uses only the PENDING_BYTE page for temporary
storage.

FossilOrigin-Name: 5007742886bd20de20be3973737cf46b010359911615eb3da69cd262bd9a2435
 2022-08-31 15:04:42 +00:00
drh 78d15f097a Improved comments in pcache1.c. No changes to code. 
FossilOrigin-Name: dd017bb1b3e31c7692d29dc4865d6bda871e429978c8738a39160d0114e5bf9b
 2022-08-30 16:54:41 +00:00
drh 4d28830861 Any function call can abort. Take this into account when deciding if a DML 
statement needs a statement journal.  See
[forum:/forumpost/9b9e4716c0d7bbd1|forum thread 9b9e4716c0d7bbd1] for more
information.

FossilOrigin-Name: 5c95ae6c9b93b9bcf698bb1cad93b2da2e28121b35e7c539b1ddc0ef2de33cfe
 2022-08-30 00:11:51 +00:00
drh f0f025b340 More assert() statements in the page cache. 
FossilOrigin-Name: 7c96a56c0d1de966844da6c5a84c0cd6066130a10724797ce6f228a9182d9b85
 2022-08-27 16:11:00 +00:00
drh f6e3e31625 Ensure that every pcache page always has either the PGHDR_DIRTY or the 
PGHDR_CLEAN bit set, even during transient page reshuffling during btree
balancing.

FossilOrigin-Name: e67f03c166277951725c194674c84da61c152a5820aa6df55a726f7dda838e92
 2022-08-27 14:43:34 +00:00
dan aa07b36dd5 Remove a NEVER() macro for a condition that is actually reachable following an OOM. dbsqlfuzz crash-6ef3cd3b18ccc5de86120950a0498641acd90a33.txt. 
FossilOrigin-Name: b573e2cffa5fedc893ed30e76e47022b3617ac5583e1eb486afa810b2514c419
 2022-08-25 13:32:55 +00:00
drh 7383f5a7d9 Add a mutex to the sqlite3_db_config() interface so that it is threadsafe 
when two or more threads call it on the same database connection at the same
time.

FossilOrigin-Name: 459ad8846ee1ee2d3b277a291c47121692bdf477e779b06e77be8338f62237a6
 2022-08-24 17:59:00 +00:00