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4d6b10cdbe57b487faa91c5be9ed69fde66cff8f
Commit Graph

115 Commits

Author SHA1 Message Date
stephan
a17f63290c Add column name to API_ARMOR check in sqlite3_blob_open() to avoid a null-pointer deref. 
FossilOrigin-Name: 0114a6622afc4588c47e98d804340449417b603dc4831513eab4d8e4ccb15d42
 2023-10-14 13:24:30 +00:00
drh
43e232dc47 Fix a resource leak: sqlite3_blob_reopen() was failing to invoke the 
xDel() distructor on a register when it sets that register to the new
rowid.  This was never a problem prior to the large-column cache of
[771fe35074b50b8d] as that destructor was always a no-op.
dbsqlfuzz cd96368deaece480fb94d42427dde053737a650e.

FossilOrigin-Name: 545edd5ecf20a7feb99dc5ce6f338fa1f172c2e17b240cbede497f0729dbd3d7
 2023-10-07 08:00:54 +00:00
drh
0051a56dec Fix harmless compiler warnings from the CBMC compiler. 
FossilOrigin-Name: 5bc17cbccdd369486fca049be9d7457e18f162c0e2f5475809ffc8f01c5fa9d2
 2023-05-10 13:56:32 +00:00
drh
c692df2784 Make it so that any Parse object is always linked into the database conenction 
while it is active.  Hence, an OOM will cause Parse.nErr to be set.

FossilOrigin-Name: 6a45d8fe8bfbc11a5b86d25237e1f8bccfb0f22f3dcaf004ba797aeb57b365ec
 2022-01-24 15:34:55 +00:00
drh
3ab4ffce1f New assert() statements to help prove correct usage of VdbeCursor objects. 
FossilOrigin-Name: 7cee62f77a9e7c3cf886f136e75a93c3bbbb88e48b66035883bea5503d9fc03c
 2021-11-11 11:23:08 +00:00
drh
78b2fa8610 Protect every access to the Table.u union using a nearby assert() or branch. 
FossilOrigin-Name: 50e08338aed7ac0cee600098d2ecd4b3b7bfd31a597bb26773badf3d2e2582c8
 2021-10-07 12:11:20 +00:00
drh
cf9d36d1b3 Refactor field names in the Column object, zCnName and zCnColl, to make them 
unique and thus easier to find amid all the other code.

FossilOrigin-Name: 8b781dcaf68e0cf12a844708c82eee00193e340195cbca915d077e4846983bf3
 2021-08-02 18:03:43 +00:00
drh
f38524d20d Refactor the Table object to reduce its memory footprint. 
FossilOrigin-Name: bbb6759bcf6e01d36dfc787a82a610d359f50aaeac8104b73883a84906d54e1f
 2021-08-02 16:41:57 +00:00
dan
a23a873fbb Add the experimental sqlite3session_changeset_size() API. 
FossilOrigin-Name: b5564a6fd54875db1de884fdc0e5eeabcd6aa5595ad03a8a60843503e830a2d8
 2021-04-21 20:52:17 +00:00
dan
385b982865 Prevent an assert() from failing if sqlite3_blob_reopen() is called on a blob-handle that has already hit an SQLITE_CORRUPT error. 
FossilOrigin-Name: b5dc7aba036cfd6d09c68dd17608328063634ca99ff341f97bab2dc2a1f59b11
 2021-04-14 15:25:10 +00:00
dan
e464802d49 Fix a problem that could cause a crash if a blob handle were closed after the associated database handle was closed using sqlite3_close_v2(). 
FossilOrigin-Name: 52f463d29407fad691c42b13462880e7605603c9be9f480d18e953a0ef78149a
 2019-07-15 13:58:28 +00:00
dan
952523f618 Fix a problem in the incr-blob code causing a new cursor to be opened for 
every sqlite3_blob_reopen() call.

FossilOrigin-Name: 41ef34a1f0650c50cacb203665cd9d57db53a49c979bf0d5a78937517f763a2c
 2017-10-24 17:28:25 +00:00
drh
559656196b Simplify the sqlite3VdbeGet() routine. Smaller, faster, and easier to maintain. 
FossilOrigin-Name: 5dbb255a9377a6c2619fbac519f18caa4d8cb23257dfba0ffb9e36dd9dc16627
 2017-09-16 20:58:41 +00:00
drh
6903bf6d49 Slightly smaller and faster by allocating Parser objects on the stack. 
FossilOrigin-Name: 436a89b91901851ce21bf0cb997291b48888c52788b904822083d8dfac32b84b
 2017-08-01 20:59:41 +00:00
drh
baf5dec700 Simplifications to blobSeekToRow(). 
FossilOrigin-Name: 495ea824093ff535734c22c3115384c08f855c02
 2017-01-31 19:02:15 +00:00
drh
210b0d0eb3 Ensure that sqlite3_blob_reopen() correctly handles short rows. 
Proposed fix for ticket [e6e962d6b0f06f46e].  Further testing needed.

FossilOrigin-Name: 57d8dad35c2a9ab635e954dce7f3986ae1ca8ed2
 2017-01-25 04:41:34 +00:00
drh
3b2936fada Change sqlite3_blob_reopen() to call sqlite3VdbeExec() directly rather than 
going through sqlite3_step().  Performance enhancement.

FossilOrigin-Name: 347df3c1fd7322e7aacaf1e9f8be81830947c482
 2017-01-21 16:27:56 +00:00
drh
36cae856ee Remove an unnecessary sqlite3_bind_int64() call from sqlite3_blob_open(). 
Also other minor refactoring of the sqlite3_blob implementation.

FossilOrigin-Name: 9d197a532349f4b1caf66bbed70ca46df86cb86f
 2017-01-21 14:11:28 +00:00
drh
4df65fc20f Minor performance optimizations to sqlite3_blob_open() and 
sqlite3_blob_reopen().

FossilOrigin-Name: 52a61967d920047ea0b4409b79793e05c0128964
 2017-01-20 00:40:26 +00:00
drh
cb3cabd01b Refactor the sqlite3BtreeKey() and sqlite3BtreeData() internal interfaces 
into sqlite3BtreePayload() and sqlite3BtreePayloadChecked(), respectively.
This is a continuation of the optimization started by check-in
[2d831074cf].  The result is a slightly smaller and faster binary.

FossilOrigin-Name: 49ebc219faea30eaa61def4a3fba2817b9c58a86
 2016-11-25 19:18:28 +00:00
drh
65f38d960d Remove unnecessary OP_Close opcodes for a size reduction and performance 
increase.

FossilOrigin-Name: 32be7aae92ee48bf2cd260ea41e79c2bc62738f9
 2016-11-22 01:26:42 +00:00
drh
69c338263a Rename the Db.zName field to Db.zDbSName to make it more descriptive and to 
distinguish it from all of the other "zName" variables scattered throughout
the code.

FossilOrigin-Name: 92a22f01343a898455fd61c3b8e7d7c954f5b569
 2016-08-18 14:33:11 +00:00
drh
a7c90c42ea Change the sqlite3BtreeKeySize() interface into sqlite3BtreeIntegerKey() and 
make it only work for table btrees.  Change sqlite3BtreeDataSize() into
sqlite3BtreePayloadSize() and make it work for all btrees.  Combine
sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() into a single
sqlite3BtreePayloadFetch() routine.  These changes seem to make the
b-tree interface more rational and they reduce both binary size and
CPU usage.

FossilOrigin-Name: bef35e18dd19732f7859287b097feeb593e5900f
 2016-06-04 20:37:10 +00:00
drh
0ac7cfaf99 Merge enhancements from trunk. 
FossilOrigin-Name: a533608cb0de3cbc1e28a794aab99864b8c249f4
 2016-02-05 14:15:34 +00:00
drh
1b32554b80 Enhance the internal sqlite3VdbeAddOpList() interface to automatically update 
jump destinations.  Use this feature to simplify the AUTOINCREMENT code
generator.

FossilOrigin-Name: ae8b9d2edf1b5aef6108e729754911db7682b6a3
 2016-02-03 01:55:44 +00:00
drh
20f272c96f Merge recent enhancements from trunk. 
FossilOrigin-Name: 327af5f644a49b2f41d5456958f9d61a2b704e1c
 2016-01-20 11:33:37 +00:00
drh
e617bc8c0c Simplification of the VDBE bytecode for incremental blob I/O. 
FossilOrigin-Name: d23849f64a110e336f26282bf2b961a2a2372468
 2016-01-18 00:46:11 +00:00
drh
2ce1865dd8 Improvements to the way sqlite3VdbeAddOpList() works, resulting in a slightly 
smaller and faster binary.

FossilOrigin-Name: 88ceb588bcdb3ca86d0c58cfdeb61b5fe070872f
 2016-01-16 20:50:21 +00:00
drh
1bb15fc973 Merge recent enhancements from trunk. 
FossilOrigin-Name: d1a1278d7f3306536dc9cbd8fb300898f1e373e8
 2015-12-02 20:40:26 +00:00
drh
c960dcbace Refactor the VdbeCursor object. It is now slightly smaller and faster and is 
easier to understand.

FossilOrigin-Name: 9b1d174d862500a627840008ffac4c8419dc97e2
 2015-11-20 19:22:01 +00:00
drh
32af5eda6a Merge recent enhancements from trunk, and especially the fix for 
ticket [1b266395d6bc10].

FossilOrigin-Name: b2face9aa95ade96a5666c70b6b31064c1ad0977
 2015-09-30 14:50:39 +00:00
drh
4b92f98ccc Use symbolic names XN_ROWID and XN_EXPR in place of the (-1) and (-2) 
magic numbers in Index.aiColumn[].  Add asserts to help verify that
Index.aiColumn[] is always used correctly.  Fix one place in FK processing
where Index.aiColumn[] was not being used correctly.

FossilOrigin-Name: 7d272aa62cd4cbbf4b5d04e3b918de27671e8301
 2015-09-29 17:20:14 +00:00
drh
91762f2d18 Merge the latest trunk enhancements. 
FossilOrigin-Name: 22ce9218fb2bb56cc5dd4e32077a16f669250d5f
 2015-09-14 10:47:29 +00:00
drh
1f9ca2c84c Add code to maintain indexes with expression arguments across DELETE, INSERT, 
and UPDATE statements.  Legacy tests pass, but the new code paths are still
largely untested.  The query planner currently makes no effort to use
expression indexes.

FossilOrigin-Name: efaabdb71626bdc03768e87e186c72f6f3da75b2
 2015-08-25 16:57:52 +00:00
drh
878acb32ef Merge all recent trunk changes into the sessions branch. 
FossilOrigin-Name: f36bb5fa5c5e3430808fe35d58f45559a216d341
 2015-02-21 15:13:50 +00:00
drh
d10d18da5f Fix potential 32-bit integer overflow problems on the offset and length 
parameters to sqlite3_blob_read() and sqlite3_blob_write().  For
sqlite3_blob_open(), make sure the *ppBlob return parameter is zeroed if
the interface fails with SQLITE_MISUSE.

FossilOrigin-Name: 5df02f50f8348dfde4fc15126abc7b7ef7803e69
 2015-02-07 15:16:35 +00:00
drh
04e8a58669 Merge recent trunk enhancements, including the read-after-ROLLBACK change 
and the addition of sqlite3_stmt_scanstatus() support, as well as various
minor bug fixes.

FossilOrigin-Name: f09055f3c4348264c7336f90646375f0d98b061e
 2014-11-18 21:20:57 +00:00
dan
923c4b35be Add test file e_blobwrite.test, containing tests for the sqlite3_blob_write() interface. 
FossilOrigin-Name: 1df77e5f1bd82de4dc92fe28359c3e56ab3f9ed4
 2014-11-10 17:53:03 +00:00
drh
ca3e10ea37 Merge recent trunk enhancements, and in particular the improvements to 
the b-tree balancing logic, into the sessions branch.

FossilOrigin-Name: 28b044a51215a3f64dafb2cf3b6cb7d2029580ef
 2014-10-31 14:53:32 +00:00
drh
9ca95730e3 Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in 
progress and is not yet completely functional.

FossilOrigin-Name: c297a84bc678f81ffc0aa9139ab73f0ca87c1971
 2014-10-24 00:35:58 +00:00
drh
e1ed0b0e17 Merge recent performance enhancements and the CAST operator enhancements 
into the sessions branch.

FossilOrigin-Name: 08ae974ac80fabe53f515bbbd93ccf55de8ee671
 2014-08-26 02:15:07 +00:00
drh
13f40da31d Split the sqlite3Error() routine into sqlite3Error() and 
sqlite3ErrorWithMsg(), for a slight size reduction and performance increase.

FossilOrigin-Name: cf561d1f0bb60b3d638632d20bd686dda4fa4a04
 2014-08-22 18:00:11 +00:00
drh
a1a483d54e Merge recent trunk changes into sessions. 
FossilOrigin-Name: 95e77efe076ab421bd246119c47dba5dacf9d087
 2014-04-18 01:10:05 +00:00
dan
5a500afd57 Enable the b-tree cursor objects overflow page-number cache, which is normally enabled only for incr-blob cursors, for all cursors. 
FossilOrigin-Name: da59198505990a4fe832be7932117c7e014955b7
 2014-03-11 20:33:04 +00:00
drh
181aed3c25 Version 3.8.4 for sessions (plus two minor fixes). 
FossilOrigin-Name: 917c410808756e1697bd628f4c9c57dd13d08ce7
 2014-03-11 01:48:06 +00:00
drh
b06a4ec1f0 Attempt to work around MSVC's treatment of __LINE__ as a non-constant value 
in "Edit and Continue" mode by avoiding the use of __LINE__ when
SQLITE_VDBE_COVERAGE is not defined.

FossilOrigin-Name: 0a5318bc272b844e937cb1df3a07224034bc3450
 2014-03-10 18:03:09 +00:00
drh
7826a9b83f Merge the performance enhancements of trunk (and some obscure bug fixes) 
into the sessions branch.

FossilOrigin-Name: 7f51ad97f0b24c57453d58faf25eee68861faa23
 2014-03-04 14:34:14 +00:00
drh
688852ab15 Add logic to do test coverage measurements on the VDBE code. 
FossilOrigin-Name: ce184c7bb16988641d37c908d9b3042456d4be3d
 2014-02-17 22:40:43 +00:00
drh
5671ef69ec Sync the latest trunk changes, and in particular the STAT4 IS NOT NULL fix. 
FossilOrigin-Name: b006792695d23980e1923b21915d5c1138ecf29d
 2014-02-11 04:30:29 +00:00
drh
b22f7c831f Delete the OP_VerifySchema opcode. Enhance OP_Transaction to do the schema 
version checks that OP_VerifySchema used to do.

FossilOrigin-Name: 2f3376ebf13df44e6acf27cb1f07172cd8b34033
 2014-02-06 23:56:27 +00:00