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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 a934dd14ac55177a.

2017-07-06
01:28
Slightly more compact implementation of the byte-code generator for the COMMIT and ROLLBACK commands. check-in: 4da663d9 user: drh tags: trunk
01:02
Small performance increase in sqlite3SrcListAppend(). check-in: 7b2623f1 user: drh tags: trunk
2017-07-05
23:33
Make the hash table implementation a little smaller and faster. check-in: f762f1ef user: drh tags: trunk
18:48
Have fts3 virtual table cursors free internal resources when they reach EOF, instead of waiting until the xClose method is called. check-in: b6b14ab6 user: dan tags: trunk
16:20
Make use of covering indexes in the OR optimization. check-in: fcbd6abd user: drh tags: branch-3.8.9
14:54
Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. check-in: b7ae4b87 user: drh tags: branch-3.8.9
14:29
Fix a problem in lsmtest causing one test to fail for multi-threaded LSM connections. check-in: 2bce64c8 user: dan tags: trunk
2017-07-04
19:34
Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. check-in: d1ba2002 user: drh tags: trunk
19:23
Fix further OOM handling cases in LSM. check-in: ca757c86 user: dan tags: trunk
17:25
Fix a couple of problems in handling OOM conditions within LSM. check-in: 989a5c17 user: dan tags: trunk
12:50
Fix a problem in the lempar.c Lemon template for YYSTACKDEPTH<=0 introduced by check-in [36e54cd8b1fb37] check-in: 268a40f4 user: drh tags: trunk
2017-07-03
21:09
Fix compiler warnings in LSM1, especially in the test logic. check-in: 9bd3be92 user: drh tags: trunk
20:19
Fix a bug in lsm queries on levels undergoing incremental an merge that contain range-delete markers. check-in: b2c24879 user: dan tags: trunk
17:37
Attempt to improve documentation on sqlite3_column_ and sqlite3_value_ interfaces. check-in: 9111ac69 user: drh tags: trunk
09:00
Add more tests for LSM log file recovery. Fix a problem in recovering log files that contain range deletes. check-in: e34eafd4 user: dan tags: trunk
2017-07-01
20:59
Fix a memory management problem in lsm log recovery code. check-in: dd55af30 user: dan tags: trunk
15:21
Enhance the RTree module to detect node truncation early and report an error. check-in: 66de6f4a user: drh tags: trunk
2017-06-30
23:46
Update the carray() and remember() extension functions so that they user the new sqlite3_value_pointer() interface. check-in: a99fa94d user: drh tags: bind-pointer
23:09
Add APIs for binding pointers that can be used by app-defined functions. check-in: d9f4a831 user: drh tags: bind-pointer
20:11
Improved documentation for sqlite3_value_type(). check-in: 0db20efe user: drh tags: trunk
19:22
Add some assert() statements in the Win32 interface for lsm1. check-in: d076d58f user: mistachkin tags: trunk
18:12
Fix some minor typos in lsm1. check-in: 0ef777d7 user: mistachkin tags: trunk
11:44
Avoid constantly freeing and reallocing small internal buffers associated with LSM cursors. Instead, allow them to persist for the lifetime of the cursor if they are LSM_SEGMENTPTR_FREE_THRESHOLD (default 1024) bytes or smaller. This change is based on research by Martijn Blaauw. check-in: bacfe8cb user: dan tags: trunk
2017-06-29
21:33
In the command-line shell, add the -quote option to start up in quote mode. Enhance the ".mode" command so that it reports the current output mode if given no arguments. check-in: 5e3f9ea5 user: drh tags: trunk
21:11
Remove the ".explain" command from the ".help" output of the command-line shell, though keep the implementation around for backwards compatibility. check-in: 7782c04e user: drh tags: trunk
20:31
Some simple tests for the STMT virtual table. check-in: a26e17ee user: drh tags: trunk
20:23
Avoid reading or writing the 32 locking bytes at the end of the first meta-page of an LSM database. check-in: 3ed6877f user: dan tags: trunk
20:13
Avoid reading or writing the 32 locking bytes at the end of the first meta-page of an LSM database. Closed-Leaf check-in: 2b5df3e8 user: dan tags: lsm-metapage-fix
19:08
Fix issues in the POSIX and Win32 interfaces for lsm1. check-in: 38ec4141 user: mistachkin tags: trunk
17:27
Edit comments in sqlite.h.in used for generating documentation, to improve the description of the new sqlite3_prepare_v3() interfaces, and other miscellaneous cleanup. No changes to executable code. check-in: 284707a7 user: drh tags: trunk
16:51
More updates to the Win32 interface for lsm1. check-in: cae64769 user: mistachkin tags: trunk
15:57
Correct typo in the Win32 interface for lsm1. check-in: 1b4facb1 user: mistachkin tags: trunk
15:24
Add interfaces sqlite3_prepare_v3() and sqlite3_prepare16_v3() with the extra prepFlags argument. Add the SQLITE_PREPARE_PERSISTENT option as one bit in that argument. Use the new option in FTS3, FTS5, and RTREE. check-in: 03977248 user: drh tags: trunk
15:13
Further corrections to the Win32 interface for lsm1. check-in: 4df6e247 user: mistachkin tags: trunk
14:33
Rename the "stmts" virtual table to just "stmt" without the final "s". check-in: adfdb801 user: drh tags: trunk
14:17
A couple fixes for the Win32 interface for lsm1. check-in: ebbd98e9 user: mistachkin tags: trunk
13:41
Add the stmts virtual table to testfixture builds. Add new compile-time options SQLITE_ENABLE_QPSG and SQLITE_ENABLE_STMTSVTAB to ctime.c check-in: 60c62829 user: drh tags: trunk
13:35
Compilation fix for lsm1 using MSVC. check-in: b7794cc5 user: mistachkin tags: trunk
13:19
Add the LSM1 extension. check-in: 824e8327 user: drh tags: trunk
13:13
Add the "stmts" virtual table to the amalgamation, activated when compiled using -DSQLITE_ENABLE_STMTSVTAB. Add the SQLITE_STMTSTATUS_REPREPARE and SQLITE_STMTSTATUS_RUN statistics outputs from sqlite3_stmt_status() and add corresponding columns to the stmts virtual table. Change the numeric value of SQLITE_STMTSTATUS_MEMUSED to get it out of the way of counter values. check-in: 88976ae3 user: drh tags: trunk
12:59
The query planner examines the values of bound parameters to help determine if a partial index is usable. Reprepares may happen if the bindings change. This behavior is disabled by the QPSG setting. check-in: c322bfa2 user: drh tags: trunk
12:54
Implement xUnlink, xShmMap, and xShmUnmap for lsm1 on Win32. Closed-Leaf check-in: 680cc064 user: mistachkin tags: lsm-vtab
12:49
Add the SQLITE_STMTSTATUS_REPREPARE and SQLITE_STMTSTATUS_RUN options to sqlite3_stmt_status(). Use this for two new columns in the stmts virtual table. Closed-Leaf check-in: b0b0c8f8 user: drh tags: stmts-vtab
01:23
Fix the exprCompareVariable() routine so that it works for non-UTF8 text. Closed-Leaf check-in: 25acd965 user: drh tags: partial-index-variables
00:20
Implement xRemap for lsm1 on Win32. Also, zero file handle when closing it. check-in: 93c9aa7d user: mistachkin tags: lsm-vtab
2017-06-28
21:47
Alternative implementation of exprCompareVariable(). check-in: b959c629 user: drh tags: partial-index-variables
21:36
Implement xLock and xTestLock for lsm1 on Win32. check-in: 9112117d user: mistachkin tags: lsm-vtab
20:21
Merge tserver fixes with this branch. check-in: 58a0aab8 user: dan tags: server-process-edition
20:12
Fix bugs in test program tserver.c. Leaf check-in: 093b9108 user: dan tags: server-edition
18:25
Make the query planners use of partial indexes based on bound variables responsive to the SQLITE_DBCONFIG_ENABLE_QPSG setting. check-in: a934dd14 user: drh tags: partial-index-variables
18:07
Merge the in the latest enhancements from trunk. check-in: 8f63c586 user: drh tags: partial-index-variables
17:29
Instead of the new sqlite3_prepare_v3() interface, provide the SQLITE_DBCONFIG_PREPARE_FLAGS interface which sets the flags on the single next call to sqlite3_prepare_v2() or its cousins. Closed-Leaf check-in: 942c3ef8 user: drh tags: dbconfig-prepare-flags
15:56
Incorporate recent trunk changes. Closed-Leaf check-in: 62b8269b user: drh tags: prepare_v3
15:47
Build the "stmts" virtual table into the amalgamation. It is active only when compiled using SQLITE_ENABLE_STMTSVTAB. That option is supplied to the command-line shell. check-in: 0ff057d8 user: drh tags: stmts-vtab
15:17
Fix harmless compiler warnings in the CSV extension. check-in: f02a5459 user: drh tags: trunk
15:01
Faster parser stack overflow detection. check-in: 36e54cd8 user: drh tags: trunk
14:26
Minor tweak to the SQL grammar to make the parser tables a few bytes smaller. check-in: cc4810b2 user: drh tags: trunk
13:47
In the lemon-generated parser, store the number of symbols on the RHS of each rule as a negative number and add it to the stack pointer, rather than storing the value as a positive and subtracting it. This makes the parser faster. check-in: b362f0d8 user: drh tags: trunk
11:56
In the lemon-generated parser, automatically promote SHIFTREDUCE actions on nonterminal systems to pure REDUCE actions, for a performance enhancement. check-in: c46d94a8 user: drh tags: trunk
01:21
Simplify error handling logic in sqlite3_exec() to save about 40 bytes. check-in: 6480916c user: drh tags: trunk
01:12
Minor code simplification in the ALTER TABLE logic. check-in: bfc4e7f3 user: drh tags: trunk
00:55
Avoid an unnecessary call to sqlite3XPrintf() in the code generator, for a performance improvement. check-in: 29d6ceb3 user: drh tags: trunk
2017-06-27
23:36
Add SQLITE_DBCONFIG_ENABLE_QPSG that forces the query planner stability guarantee. This is the fix for ticket [b9f010107724c] check-in: b82efd2a user: drh tags: trunk
22:33
Improve a local variable name. check-in: d0f6973d user: mistachkin tags: lsm-vtab
22:27
Initial work on porting lsmtest to Win32. check-in: 7e669d9b user: mistachkin tags: lsm-vtab
20:23
Support clients within a single process only. check-in: dfa9a4d5 user: dan tags: server-process-edition
18:15
Implement xFullpath for lsm1 on Win32. check-in: dbe9c8aa user: mistachkin tags: lsm-vtab
16:48
Merge latest trunk changes with this branch. check-in: 2b095406 user: dan tags: apple-osx
16:39
Fix a virtual table problem that can occur when the vtab is on the RHS of a LEFT JOIN and there is a MATCH constraint in the ON clause, or when the vtab is in a sub-query that is the RHS of a LEFT JOIN and there is a MATCH constraint in the WHERE clause of the sub-query. check-in: 87b38166 user: dan tags: trunk
06:28
Minor corrections to the previous check-in. check-in: e1cf8a78 user: mistachkin tags: lsm-vtab
05:59
Work in progress porting lsm1 to Win32. check-in: 2017636e user: mistachkin tags: lsm-vtab
2017-06-26
21:08
Add the -withoutnulls option to the "db eval" method in the TCL interface. check-in: 18f0616e user: drh tags: trunk
18:42
The ".import" command of the shell, and the csv virtual table extension both ignore a single UTF-8 BOM at the beginning of their input. check-in: 7c15d762 user: drh tags: trunk
16:13
Add the "-unsetnull 1" option to the "sqlite3" command in the TCL interface. Closed-Leaf check-in: cbe441b2 user: drh tags: unsetnull-option
14:46
Make sure sqlite3VdbeSetVarmask() is never invoked when QPSG is enabled. Closed-Leaf check-in: ebcfa73e user: drh tags: enable-QPSG
13:57
Add the SQLITE_DBCONFIG_ENABLE_QPSG option to activate the query planner stability guarantee. This involves refactoring the sqlite3.flags bitvector to carve out a free bit to use. check-in: 7076e828 user: drh tags: enable-QPSG
11:46
Remove an invalid assert() from lsm test code. check-in: ca8a7e99 user: dan tags: lsm-vtab
08:24
Fix another problem with multi-threaded mode in the LSM test code. check-in: 461ced77 user: dan tags: lsm-vtab
07:31
Update a test case to reflect the fact that the lsm blocksize is configured in KiB. And defaults to 1024, not 2048. check-in: d7015475 user: dan tags: lsm-vtab
06:53
Fix some compiler warnings in lsm_file.c. check-in: 23f16382 user: dan tags: lsm-vtab
2017-06-24
19:21
Disable shell tests for the .schema command if virtual tables are not available. check-in: c8186874 user: drh tags: trunk
18:10
Consider the values bound to SQL variables when determining whether or not a partial index may be used. check-in: 7b59c353 user: dan tags: partial-index-variables
16:35
Make sure the config.h header is included by ctime.c, if that header exists. check-in: c2ea6293 user: drh tags: trunk
16:03
Query planner tuning: When deciding between two plans with the same cost, bias the selection toward the one that does not use the sorter. check-in: f0ec36d4 user: drh tags: trunk
13:31
Make sure enough memory is allocated for pathological quoting cases when computing a quoted table name in the command-line shell. check-in: 0583b84a user: drh tags: trunk
2017-06-23
21:05
Merge all recent trunk enhancements into the apple-osx branch. check-in: 53b14a38 user: drh tags: apple-osx
15:47
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. check-in: 712267c9 user: dan tags: trunk
2017-06-22
16:51
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. Closed-Leaf check-in: e4a022be user: dan tags: or-optimization
2017-06-21
01:36
Enable pragma virtual tables for the integrity_check, quick_check, and foreign_key_check pragmas. check-in: 118f7bb3 user: drh tags: trunk
2017-06-20
19:20
Ensure that test tool "tserver" finalizes all statements before attempting to close a database handle. check-in: d8568aac user: dan tags: server-edition
18:19
Rename the azCompileOpt global constant to avoid a harmless compiler warning about a name conflict with a local variable. check-in: 94e420ec user: drh tags: trunk
17:43
Ensure that the query planner knows that any column of a flattened LEFT JOIN can be NULL even if that column is labeled with "NOT NULL". Fix for ticket [892fc34f173e99d8]. check-in: 48346268 user: dan tags: trunk
2017-06-19
11:44
Experimental "PRAGMA secure_delete=FAST" pragma. The intent is to overwrite deleted content with zeros without increasing the amount of disk I/O. Closed-Leaf check-in: f1682f0f user: drh tags: fast-secure-delete
2017-06-17
19:06
Avoid adding an artifical "LIMIT 1" on scalar subqueries that do not need it. This seems like a pointless optimization as it makes minimal run-time difference but does increase code complexity. Parked on a branch for historical reference. Leaf check-in: c21628e9 user: drh tags: subquery-limit-opt
18:49
Fix a missing comma in the previous check-in. check-in: f3db02f4 user: drh tags: trunk
17:55
Rework the code in ctime.c a bit to report on more compile time options. And to only output configuration options passed in to SQLite, not the default values of #define symbols set automatically. Also generate the large array in ctime.c using new script tool/mkctime.tcl, instead of entering it manually. check-in: 9a443397 user: dan tags: trunk
17:29
Ensure that the value of the THREADSAFE symbol is always included when reporting compile time options, even if it was not explicitly configured. Closed-Leaf check-in: 95141c64 user: dan tags: ctime-refactor
16:39
Add extra test cases for sqlite3changeset_apply() and ALTER TABLE ADD COLUMN. check-in: 603838fc user: dan tags: trunk
09:59
Version 3.18.2 check-in: 036ebf72 user: drh tags: release, branch-3.18, version-3.18.2
00:39
When building an ephemeral table of integers, do not assume that the table does not already contain N if the insert cursor points to N-1. Fix for ticket [61fe9745]. Also increase the version number to 3.18.2. This is the release candidate. check-in: e1b71029 user: drh tags: branch-3.18