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100 ancestors of fb60150aeedc3898

2019-03-14
00:01
Technical improvements to the documentation for sqlite3_bind_blob() and sqlite3_bind_text(). No changes to code. (check-in: fb60150a user: drh tags: trunk)
2019-03-13
23:51
Improvements to the sqlite3_db_filename() API documentation. No code changes. (check-in: 711f5ec4 user: drh tags: trunk)
13:19
New test cases added to test/fuzzdata8.db (check-in: 049e9926 user: drh tags: trunk)
11:40
When deserializing a database (sqlite3_deserialize()), do not attempt to parse the schema before the data is loaded. (check-in: 4e1b005e user: dan tags: trunk)
10:29
Detect zero-length free slots on btree pages and report that as corruption. (check-in: c4f0568f user: drh tags: trunk)
2019-03-12
09:49
Fix a crash that could occur if the RHS of an IN expression is a correlated sub-query that refers to the outer query from within a window frame definition only. (check-in: 0524aaaf user: dan tags: trunk)
2019-03-08
20:26
Fix a harmless bug in the Makefile. (check-in: 62ac9cb0 user: drh tags: trunk)
14:07
Add new test cases in test/fuzzdata8.db (check-in: 97bdc090 user: drh tags: trunk)
14:02
Patch makes balance_nonroot() slightly smaller and faster and more robust against corrupt databases. (check-in: 174da3c3 user: drh tags: trunk)
13:27
Fix another segfault in fts3 that could occur with corrupt records. (check-in: fcc24edd user: dan tags: trunk)
01:52
Detect an attempt to drop a btree that is not within the bounds of the database file and abort early with an SQLITE_CORRUPT error, to avoid problems later on in the process. (check-in: 235a9698 user: drh tags: trunk)
2019-03-06
14:53
Add the sqlite3_stmt_isexplain() interface. (check-in: ee642d3e user: drh tags: trunk)
14:08
Add an "|| CORRUPT_DB" term to an assert() that might be false if the database is corrupt. Also add a branch to have sqlite3PagerMovepage() return SQLITE_CORRUPT in that case. (check-in: b0d5cf40 user: drh tags: trunk)
2019-03-05
23:49
Fix a potential 32-bit integer overflow in the "showdb" utility program when it is trying to interpret a corrupt database file. (check-in: 3803e750 user: drh tags: trunk)
16:53
Add a script to tool/ that will extract the sqlite3.h header file from an sqlite3.c amalgamation. (check-in: 38d2e510 user: drh tags: trunk)
14:47
New dbfuzz2 test cases added to test/fuzzdata7.db (check-in: 25975e1f user: drh tags: trunk)
14:39
If the initial byte of a record is a large value, then always used the generalized record comparison routine sqlite3VdbeRecordCompare() rather than one of the specialized versions that are optimized for shorter records. (check-in: c1ac0070 user: drh tags: trunk)
2019-03-04
07:15
Fix a problem preventing compilation with SQLITE_OMIT_UTF16. (check-in: 906d1fd8 user: dan tags: trunk)
2019-03-02
20:09
Improved comments on the fossildelta.c extension. (check-in: d7d23f04 user: drh tags: trunk)
15:25
Fix the SQLITE_DIRECT_OVERFLOW_READ compile-time option so that it works with SQLITE_HAS_CODEC. (check-in: fd085e92 user: drh tags: trunk)
12:17
Remove a redundant parameter extraction call from the percentile.c extension. (check-in: d49c32e6 user: drh tags: trunk)
2019-03-01
21:33
The fts3_tokenizer() function returns NULL if the SQLITE_DBCONFIG_ENABLE_FTS_TOKENIZER setting is disabled, which is is by default. (check-in: f5732f4c user: drh tags: trunk)
21:12
Fix a minor comment typo. No code changes. (check-in: 9a0a93c8 user: drh tags: trunk)
18:07
In a query that uses a partial index, the expression that is the WHERE clause of the partial index must always be true. Use this fact to avoid evaluating identical terms in the WHERE clause of the query. (check-in: 9b287962 user: drh tags: trunk)
2019-02-28
20:10
Add the ".parameter" command to the CLI. (check-in: 1f9fa585 user: drh tags: trunk)
17:29
Add the new "bind_fallback" method to the "sqlite3" object in the TCL interface. (check-in: c7f70b6d user: drh tags: trunk)
14:09
New test case loaded into test/fuzzdata8.db. (check-in: 00ae0c6c user: drh tags: trunk)
13:41
Avoid an assert() failure and an undefined left-shift operation in the fts3 snippet() function that could occur if the database was corrupt. (check-in: d5250db6 user: dan tags: trunk)
13:21
Add an "|| CORRUPT_DB" term to an assert() statement in the btree defragmenter. (check-in: 6bfd8655 user: drh tags: trunk)
2019-02-27
23:05
Enable the LIKE optimization when the ESCAPE keyword is present and the PRAGMA case_sensitive_like pragma is ON. (check-in: 6ae4b8c5 user: drh tags: trunk)
19:59
Fix the readfile() UDF so that it returns an empty BLOB, not an OOM error, when reading an empty file. (check-in: 0edad533 user: drh tags: trunk)
16:38
Add the "-returntype" option to the "db function" Tcl method. (check-in: 789a492b user: dan tags: trunk)
15:26
Verify that fts5 auxiliary functions cannot be used in aggregate queries. (check-in: 122330db user: dan tags: trunk)
2019-02-26
19:16
Reformat the white-space in a few test cases so that the tests work with Tcl 8.6.9. (check-in: 29d02bf2 user: dan tags: trunk)
18:21
Minor change to dbfuzz2 that allows it to be compiled against older versions of SQLite. (check-in: 6d39d6a6 user: drh tags: trunk)
17:52
New test cases added to test/fuzzdata8.db. (check-in: 61fdfc57 user: drh tags: trunk)
17:49
Allocate a few extra bytes for the pager temp page as an overrun buffer while processing corrupt database files. (check-in: e7aca071 user: drh tags: trunk)
16:17
Use unsigned integers to count the number of pages in a freelist during an integrity_check, to avoid any possibility of a signed integer overflow. (check-in: 05b87e07 user: drh tags: trunk)
16:11
Fix a harmless compiler warning that only comes up during debug builds. (check-in: 848869ce user: drh tags: trunk)
12:29
Update the configure-generated makekfile to generate a portable pkgIndex.tcl. (check-in: 35cbee7f user: drh tags: trunk)
2019-02-25
18:43
Enhance the command-line shell to accept bound parameters, using the TEMP table named "$Parameters" to look up the values for bound parameters. (check-in: 7c941ce5 user: drh tags: trunk)
14:52
Update comments on the fossildelta extension. No changes to code. (check-in: 9da4fb59 user: drh tags: trunk)
14:16
Fix a typo in the documentation for sqlite3_total_changes(). (check-in: 8474c156 user: drh tags: trunk)
2019-02-23
20:48
Fix a couple of assert() statements in fts3 that can be false if the database is corrupt. (check-in: 84162af5 user: dan tags: trunk)
00:21
Check-in [fa792714ae62fa98] is incorrect. Add a test case to refute it and also a fix to make it right. Then add an alternative fix to ticket [df46dfb631f75694] in which all ephemeral tables used as the RHS of an IN operator be index btrees and never table btrees so that they can always be reused. (check-in: d3915230 user: drh tags: trunk)
00:08
Remove a testcase() macro which is now unreachable due to the contraction of the use of IN_INDEX_ROWID. (Closed-Leaf check-in: 90c5a17c user: drh tags: tkt-df46dfb631)
2019-02-22
23:29
Make all ephemeral tables built to hold the RHS of an IN operator be index-btrees, never table-btrees, regardless of whether or not they are used as IN_INDEX_LOOP or IN_INDEX_MEMBERSHIP. That way, the same ephmerial table can be reused for both cases. (check-in: c2d50df8 user: drh tags: tkt-df46dfb631)
21:33
Check-in [fa792714ae62fa980] is not a valid fix for ticket [df46dfb631f75694], as the new test case in this check-in demonstrates. The fix here causes test cases for the [df46dfb631f75694] bug to fail again, so this check-in is on a branch. A new fix is needed for [df46dfb631f75694]. (check-in: 0d456456 user: drh tags: tkt-df46dfb631)
19:24
Internally, remove all references to a Window object that belongs to an expression in an ORDER BY clause if that expression is converted to an alias of a result-set expression. Fix for [4feb3159c6]. (check-in: 579b66ea user: dan tags: trunk)
16:18
In sqlite3NestedParse() be sure to detect all SQLITE_NOMEM and SQLITE_TOOBIG errors and to distinguish between them. (check-in: 73056b31 user: drh tags: trunk)
15:42
Modify sqlite3_str_finish() and sqlite3VMPrintf() so that they always return NULL on any OOM or SQLITE_LIMIT_LENGTH error. (check-in: e7144ffd user: drh tags: trunk)
2019-02-21
16:41
Detect oversized strings in the OP_String opcode even if the P4 argument is originally UTF8 and has to be converted to UTF16 to match the database file and that conversion causes the string to become shorter and cross below SQLITE_LIMIT_LENGTH threshold. This might fix an OSSFuzz problem that we have been so far unable to reproduce. (check-in: c13d5639 user: drh tags: trunk)
2019-02-20
19:20
Changes to the unix VFS that allegedly enable it to build of Fuchsia. We have no way of testing this. (check-in: be21a641 user: drh tags: trunk)
19:06
Disable unix-specific features of dbfuzz2 when compiling on windows. (check-in: af84774d user: drh tags: trunk)
18:13
Avoid the use of function pointers in columnName(), as function pointers appear to be a source of consternation to LLVM. (check-in: c48f6f39 user: drh tags: trunk)
13:55
Progress handler improvements: (1) Invoke the callback after OP_Program opcodes (2) Invoke the callback multiple times in a row to catch up after a long run of no progress checks. (check-in: 0c5db18d user: drh tags: trunk)
12:52
When an IN operator drives a query loop, mark it as "CODED" so that it will not be used afterwards for a (pointless) membership test. This is a better fix for ticket [df46dfb631f75694] than the previous fix that is now on a branch as it preserves the full optimization of check-in [e130319317e76119]. (check-in: fa792714 user: drh tags: trunk)
2019-02-19
20:29
Enhance the xBestIndex method on delta_parse() to return SQLITE_CONSTRAINT if no delta argument is supplied. (check-in: f16d127c user: drh tags: trunk)
20:19
Add the delta_parse(DELTA) table-valued function to the fossildelta extension. (check-in: d91fcc26 user: drh tags: trunk)
18:39
Add the fossildelta.c extension in ext/misc with implementations of the Fossil delta functions. (check-in: b80cafa6 user: drh tags: trunk)
17:45
Fix a potential memory leak in RBU if the rbu_fossil_delta() SQL function is misused. Misuse never happens in a working RBU system, so this is not a particularly important fix. (check-in: 12517d1b user: drh tags: trunk)
16:42
Fix an assert() that might not be true if the database file is corrupt. (check-in: f2d400db user: drh tags: trunk)
13:51
New assert() to verify the TF_HasprimaryKey flag. (check-in: 0abace8a user: drh tags: trunk)
13:08
Always use the symbolic name SQLITE_IDXTYPE_PRIMARYKEY rather than a hard-coded magic number 2. (check-in: 55d43adc user: drh tags: trunk)
2019-02-18
12:16
Fix an assert() that might not be true if the %_segdir table of FTS3 contains corrupt entries. (check-in: a6509ca3 user: drh tags: trunk)
2019-02-16
22:45
Fix an assert() that might be false for a corrupt database. (check-in: 0cfb8887 user: drh tags: trunk)
2019-02-14
15:27
Improved oversized cell detection when updating ptrmap pages in balance_nonroot(). (check-in: aa61435a user: drh tags: trunk)
2019-02-12
22:58
Ensure that the nProgressLimit variable is always initialized in sqlite3VdbeExec(), even if the routine jumps to its exit processing early. (check-in: 167b91df user: drh tags: trunk)
21:04
Enhancement the progress callback mechanism so that the progress callback is always invoked at least once at the end of a prepared statement if the opcode count has been exceeded. This makes the progress callback more effective at limiting run times. This check-in also includes and unrelated performance enhancement to OP_Column. (check-in: 68cce272 user: drh tags: trunk)
16:58
Further performance improvements to btreeInitPage(). (check-in: 93ae382e user: drh tags: trunk)
15:51
Increase the version number to 3.28.0 for the next release cycle. (check-in: 6eb38c59 user: drh tags: trunk)
12:25
Register the "vfsstat" virtual table immediately when loading the vfsstat.c extension. (check-in: 9bd92afd user: drh tags: trunk)
01:28
New test cases in test/fuzzdata8.db. (check-in: ab2356f5 user: drh tags: trunk)
01:04
Defer computing the number of bytes of free space on a btree page until that value is actually needed. (check-in: 177f5f40 user: drh tags: trunk)
00:58
Change an assert() into a NEVER(), since the condition is difficult to prove with certainty. Improved comment on the MemPage.nFree field. (Closed-Leaf check-in: fec071b8 user: drh tags: deferred-free-space)
2019-02-11
22:50
Do not invoke btreeComputeFreeSpace() when not necessary. (check-in: f11b0ed4 user: drh tags: deferred-free-space)
19:27
Improvements to comments. No changes to code. (check-in: 16eb0fc8 user: drh tags: deferred-free-space)
17:22
Fix test cases. Avoid unnecessary tests for MemPage.nFree less than zero. (check-in: 480a5090 user: drh tags: deferred-free-space)
16:12
Fix another segfault that could occur in fts5 with a corrupted database. (check-in: 09e33738 user: dan tags: trunk)
13:25
Fix typos in comments in fts5.h. No changes to code. (check-in: c19e97bc user: dan tags: trunk)
12:51
Updates to a comment to keep it in alignment to the changes on this branch. (check-in: 7499f743 user: drh tags: deferred-free-space)
11:34
Build and test fixes for SQLITE_OMIT_WINDOWFUNC builds. (check-in: 8824115a user: dan tags: trunk)
11:04
Avoid using a "return void_function();" statement in void function sqlite3WalSnapshotUnlock(). It provokes a warning from some compilers. (check-in: 4a4952d3 user: dan tags: trunk)
01:58
Add an assert() in an attempt to repro an ASAN warning from OSSFuzz. (check-in: 7b412224 user: drh tags: trunk)
2019-02-09
22:33
Fix a page-cache reference leak in the btree balancer when there is a corrupt database. (check-in: 92858991 user: drh tags: deferred-free-space)
21:06
Defer computing the MemPage.nFree value of an in-memory btree page until it is actually needed, since for many pages it is never needed. This checkin works sufficiently to prove the concept, but still has issues with exception handling. (check-in: 1d43ee40 user: drh tags: deferred-free-space)
19:23
Change a few assert() statements in fts3 that might fail if the database is corrupt. (check-in: db74a56a user: dan tags: trunk)
2019-02-08
22:34
Small performance improvement and size reduction for pageFindSlot() - the routine in btree.c that locates a free slot for a cell on a btree page. (check-in: 1969372a user: drh tags: trunk)
17:28
Further simplifications to sqlite3VdbeMemSetStr(). (check-in: 1d212957 user: drh tags: trunk)
15:59
Change the sqlite3VdbeMemGrow() routine so that it no longer guarantees a minimum size of 32 bytes. That minimum is no longer required, and without the extra check for the minimum size, the routine runs faster. (check-in: 5c499da8 user: drh tags: trunk)
14:55
Give the sqlite3 object a pointer to the current Parse so that if an OOM occurs, it can automatically set the Parse.rc value to SQLITE_NOMEM. This avoids a frequent extra test of db.mallocFailed in the innermost parser loop. (check-in: 5c663804 user: drh tags: trunk)
04:15
Do not do the optimization that attempts to pull expression values from an index on that expression when processing a multi-index OR (see check-in [a47efb7c8520a0111]) because the expression transformations that are applied become invalid when the processing moves off of the current index and on to the next index. Fix for ticket [4e8e4857d32d401f]. (check-in: 440a7cda user: drh tags: trunk)
2019-02-07
19:07
Change VACUUM so that it preserves ROWID values. (check-in: 49e5d11d user: drh tags: trunk)
17:02
Version 3.27.0 (check-in: 97744701 user: drh tags: trunk, release, version-3.27.0)
15:09
Experimental change to VACUUM so that it preserves existing ROWID values. (Closed-Leaf check-in: f264015f user: drh tags: vacuum-preserves-rowid)
00:17
In the fuzzcheck test program, make sure the isspace() and related routines are not given values outside the range of -1 to 255. (check-in: f2983287 user: drh tags: trunk)
2019-02-06
20:49
Ensure all bytes of the PgHdr1 structure are initialized. This avoids a valgrind error when running corruptI.test. (check-in: a505e34d user: dan tags: trunk)
20:12
Update an assert() in test_journal.c to take the new "VACUUM INTO" functionality into account. (check-in: 0e6249cb user: dan tags: trunk)
19:42
Avoid attempting to delete a file while it is still open in walfault2.test. (check-in: 9d54a63d user: dan tags: trunk)
18:08
Update test file dbfuzz001.test so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds. (check-in: 4371a0c4 user: dan tags: trunk)
15:23
Add -DSQLITE_ENABLE_DESERIALIZE to the default testing configuration in test/releasetest.tcl. (check-in: 433d6ef6 user: dan tags: trunk)