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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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100 check-ins occurring around a505e34d4ec31159.

2019-02-14
15:47
Add missing comments and fix other code issues in the new functions in callback.c. check-in: 441cabb6 user: dan tags: reuse-schema
15:27
Improved oversized cell detection when updating ptrmap pages in balance_nonroot(). check-in: aa61435a user: drh tags: trunk
2019-02-13
19:17
Fix for sqlite3_table_column_metadata() on REUSE_SCHEMA databases. check-in: 53220ad7 user: dan tags: reuse-schema
18:29
Avoid crashing after parsing a corrupt schema with a REUSE_SCHEMA connection. check-in: b102148e user: dan tags: reuse-schema
15:51
Fix a problem with the incrblob API and reusable schemas. check-in: 34f0f96f user: dan tags: reuse-schema
14:06
Rearrange the code in the VDBE to help out the C-compiler optimizer. And fix a harmless compiler warning. check-in: 219b39e1 user: drh tags: reuse-schema
13:48
Performance optimization in the VDBE, and a fix for a harmless compiler warning. Closed-Leaf check-in: e002666a user: drh tags: reuse-schema-vdbe-opt
08:40
Fix a problem with OPEN_REUSE_SCHEMA connections reloading the temp schema. check-in: 7c2ec2d4 user: dan tags: reuse-schema
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
20:58
Add tests for creating temp schema objects with SQLITE_OPEN_REUSE_SCHEMA connections. check-in: 8c07b609 user: dan tags: reuse-schema
19:20
Share schemas between databases attached to the same database handle. check-in: ea611d7c user: dan tags: reuse-schema
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
20:13
Merge latest trunk changes into this branch. check-in: dbedd81b user: dan tags: reuse-schema
19:34
Add eponymous virtual table "schemapool". For inspecting the current contents of the schema-pool. check-in: 2ebeb747 user: dan tags: reuse-schema
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
17:47
Fix virtual table support for SQLITE_OPEN_REUSABLE_SCHEMA connections. check-in: 3ca8856a user: dan tags: reuse-schema
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
20:55
Use a fast compiler-provided memory barrier exclusively, if such a memory barrier is available. Leaf check-in: df66fec9 user: drh tags: faster-memory-barrier
19:30
Add test cases and fix problems on this branch. check-in: 2b2e9f81 user: dan tags: reuse-schema
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
14:59
Merge the fix for ticket [4e8e4857d32d401f], so that this branch now contains release 3.27.1 plus the extra patch to preserve ROWID values on VACUUM. check-in: 0cdae60e user: drh tags: apple-osx
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
13:17
Version 3.27.1 check-in: 0eca3dd3 user: drh tags: release, branch-3.27, version-3.27.1
12:46
Cherrypick the fix for ticket [4e8e4857d32d401f] from trunk. check-in: d5d944d7 user: drh tags: branch-3.27
12:44
Increase the version number to 3.27.1. check-in: b94d5428 user: drh tags: branch-3.27
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
19:28
Pull in the change that causes VACUUM to preserve rowid values. check-in: c9af2f71 user: drh tags: apple-osx
19:07
Change VACUUM so that it preserves ROWID values. check-in: 49e5d11d user: drh tags: trunk
18:49
Merge the offical 3.27.0 release. check-in: 62829164 user: drh tags: apple-osx
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
13:48
Do not attempt to test the shell ".trace" command in SQLITE_OMIT_TRACE builds. check-in: 3839e909 user: dan tags: trunk
13:41
Fix a problem preventing testfixture from being built with SQLITE_OMIT_VIRTUALTABLE. check-in: d2cca36a user: dan tags: trunk
01:18
When extending the size of SrcList objects, do not attempt to use extra space on the end of the allocation, as that provides scarcely any performance benefit but does greatly complicate cross-platform testing. check-in: 3087a0c3 user: drh tags: trunk
00:55
If the query flattener detects an error, cause the SELECT code generator to abort immediately. check-in: 3d3b142f user: drh tags: trunk
00:11
Back out check-in [008112bcef561a8], reenabling deprecated PRAGMAs when the SQLITE_OMIT_DEPRECATED compile-time option is used, because way too many TH3 tests depend on those deprecated PRAGMAs. check-in: 9dbf512d user: drh tags: trunk
2019-02-05
20:51
Omit the ".progress" command from the shell if it is compiled with the SQLITE_OMIT_PROGRESS_CALLBACK option. check-in: 4d0a949f user: drh tags: trunk
19:52
Fix a harmless compiler warning in the memtrace.c extension. check-in: 2f468da4 user: drh tags: trunk
19:51
Merge latest trunk into this branch. check-in: c089cc4f user: dan tags: reuse-schema
19:48
Fix compiler warnings on Windows. check-in: 4978ee8b user: drh tags: trunk
19:15
Fix memory leaks on this branch. check-in: e9c5e189 user: dan tags: reuse-schema
16:53
Update the tester.tcl --malloctrace option so that it uses eu-addr2line instead of addr2line. check-in: 79c07387 user: dan tags: trunk
14:36
The IS NOT NULL operator does not imply that the operand is never NULL. Fix for ticket [5948e09b8c415bc45da5cf] check-in: d840e9bb user: drh tags: trunk
12:16
Keep the temp_store_directory and data_store_directory pragmas even when compiling with SQLITE_OMIT_DEPRECATED. check-in: 93386a7c user: drh tags: trunk
08:55
Update test file "resetdb.test" so that it works with the "prepare" permutation. check-in: 95d33812 user: dan tags: trunk
2019-02-04
21:10
Early detection of implausibly sized records to avoid unnecessary large memory allocations. check-in: 2c8769c6 user: drh tags: trunk
21:02
Fix a problem with reloading the schema on this branch. check-in: 5dfbef83 user: dan tags: reuse-schema
19:52
Mention the new -memtrace command-line option in the -help output of the CLI. check-in: ada91aef user: drh tags: trunk
19:50
Add the -memtrace option to dbfuzz2. check-in: 67fecbc7 user: drh tags: trunk
19:45
Enhance dbfuzz2 so that with the -v option it shows the return code and error message for any failing SQL statements. check-in: 3a127ef9 user: drh tags: trunk
19:12
Ensure that the sqlite3_exec() callback gets the correct number of columns for a query, even if the schema changes out from under it. check-in: a16ffb5a user: drh tags: trunk
16:42
Do not run shmlock.test as part of the inmemory_journal permutation. check-in: d3fea69c user: dan tags: trunk
16:36
Update the test/fuzzdata8.db database with new interesting cases from dbsqlfuzz. check-in: e467e4c8 user: drh tags: trunk
16:25
Fix problems with SAVEPOINT and related commands within transactions on a corrupt database that include fts5 or some other virtual tables. check-in: b0da6e0d user: dan tags: trunk
14:53
Add the ".progress" command to the CLI. check-in: ad84ca24 user: drh tags: trunk
14:00
Fix another potential buffer overread in fts5. check-in: 14fba4cc user: dan tags: trunk
11:54
Fix another corruption case in fts5. check-in: e608085d user: dan tags: trunk
2019-02-03
07:46
Fix an assertion failure in fts3 triggered by a corrupt database. check-in: 560ebd42 user: dan tags: trunk
2019-02-02
21:02
Try new approach ensuring that each Schema object is only used by one connection/database at any one time. check-in: 9e8e5f52 user: dan tags: reuse-schema
18:24
New testcase added to test/fuzzdata8.db. check-in: 2f5c1925 user: drh tags: trunk
15:59
Honor key query parameters for SEE on the URI filename for ATTACH and VACUUM INTO. check-in: 2e01096b user: drh tags: trunk
15:05
Give a link to the URI Filename document in the documentation to the various sqlite3_uri_parameter() interfaces. check-in: 69b0b2ee user: drh tags: trunk
13:47
Fix a buffer overread in fts5 debugging scalar function fts5_decode(). check-in: 54f2399f user: dan tags: trunk
01:27
Fix harmless compiler warning. check-in: dddda685 user: mistachkin tags: trunk
2019-02-01
21:08
Slight adjustment to the printf formatter large memory allocation detector so that it does not overestimate the amount of space needed for oversize %d conversions. check-in: 1aee70d6 user: drh tags: trunk
20:29
Prevent the printf formatter from doing large memory allocations - larger than either the size of the static buffer for interfaces like sqlite3_snprintf(), or larger than SQLITE_LIMIT_LENGTH for interfaces that are associated with a database connection. This helps to prevent DOS attacks on products that let hostile sources inject arbitrary SQL. It also helps fuzzers run faster and more effectively. check-in: 179e5d46 user: drh tags: trunk
18:46
Performance improvement in the parsing of options to %-formats in the printf implementation. check-in: 40d8f8ae user: drh tags: trunk
15:06
Ensure that the Walker.pParse structure is initialized when walking the source tree to gather the WINDOW clauses on a query with window functions. check-in: 4ca9d5d5 user: drh tags: trunk
14:54
New test cases added to test/fuzzdata8.db. check-in: e5924939 user: drh tags: trunk
14:50
Improve the strict enforcement of cell sizes in balancing from check-in [12713f320b2c1def] so that it also works with table-btrees in addition to index-btrees. check-in: ef27e7a0 user: drh tags: trunk
14:40
Fix an assert() in fts5 that could fail if the database is corrupt. check-in: 55f06aa3 user: dan tags: trunk
13:34
Fix another corrupt-database-handling problem in fts5. check-in: 9876ae1b user: dan tags: trunk
2019-01-31
16:09
Remove an incorrect assert() from the deserialize in-memory database VFS. check-in: 80151d7e user: drh tags: trunk
15:38
Add the SQLITE_CONFIG_MEMDB_MAXSIZE configuration option for configuring the default maximum size of an in-memory database created using sqlite3_deserialize(). This is necessary to make the interface reasonably testable. check-in: cb72ee04 user: drh tags: trunk
14:37
Fix another buffer overrun that could occur when quering a corrupt database using an fts5vocab table. check-in: b80119bd user: dan tags: trunk
02:42
If the amalgamation file "sqlite3.c" is generated using the SQLITE_ENABLE_UPDATE_DELETE_LIMIT option, but then subsequently (mis-)compiled without that option, and then a particular syntax error could cause a memory leak, but for this fix. check-in: 1bb17c86 user: drh tags: trunk