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

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30 check-ins using file src/sqlite.h.in version f0bd1abf

2017-08-22
21:07
Less dramatic changes to the source-id following an edit. Modify the way that the amalgamation is constructed to give it the opportunity to detect changes and modify the source-id. check-in: 564c7340 user: drh tags: trunk
19:54
Modify the SQLITE_SOURCE_ID if the source code has changed in any way since the previous check-in. check-in: 515d6a83 user: drh tags: trunk
19:49
Trying again to get out-of-tree builds to work correctly. Closed-Leaf check-in: a1b3337e user: drh tags: mksourceid
19:44
mksourceid still does not work right. Leaf check-in: ca5dcb4a user: drh tags: mistake
19:43
Attempting to fix the source-id generator so that it works for out-of-tree builds. check-in: 5a037ac2 user: drh tags: mksourceid
19:19
Add the "mksourceid" program to the build process. That program changes the SQLITE_SOURCE_ID if the source tree has been modified in any way. check-in: d4c05e04 user: drh tags: mksourceid
15:21
Fix error tests in seldom-used compile-time branches of the unix backend. check-in: 885c2b44 user: drh tags: trunk
2017-08-21
02:20
Remove an unnecessary conditional. check-in: 56d19f9f user: drh tags: trunk
02:05
Minor optimization to sqlite3VdbeMemSetStr(). check-in: 6538ef7b user: drh tags: trunk
2017-08-19
20:38
Space and size optimization to the printf implementation. check-in: d01d2cff user: drh tags: trunk
2017-08-18
22:30
Another size and performance optimization to readDbPage(). This time we eliminate some unnecessary local variables. check-in: 745bc8de user: drh tags: trunk
21:14
Size and performance optimization the readDbPage() routine in the pager. check-in: ca9e1875 user: drh tags: trunk
16:09
For the unix VFS, avoid an unnecessary stat() system call prior to opening any file in the common case where there are no unused file descriptors. check-in: 3075cfa0 user: drh tags: trunk
14:34
Combine the OP_CreateTable and OP_CreateIndex opcodes of the bytecode engine into a single OP_CreateBtree opcode. This simplifies the implementation and makes the bytecode programs clearer. check-in: eb1202b5 user: drh tags: trunk
08:29
Only use indexes on expressions to optimize ORDER BY and GROUP BY if the collation sequence matches. Possible fix for [e20dd54a]. check-in: 37e19008 user: dan tags: trunk
2017-08-17
20:53
Use the __builtin_clzll() function of gcc to improve the performance and reduce the size of the sqlite3LogEst() routine. check-in: a42a438c user: drh tags: trunk
19:23
Small optimization in the Expr tree walker. check-in: 264a5e1b user: drh tags: trunk
18:54
Size optimization in the authorizer error message generation logic. check-in: 0367a4d5 user: drh tags: trunk
18:23
In sqlite3ViewGetColumnNames(), return the number of errors, not an error code. check-in: f13682ea user: drh tags: trunk
18:17
The RTREE extension should return SQLITE_CORRUPT_VTAB, not just SQLITE_CORRUPT when it encounters incorrectly formatted shadow tables. check-in: 0712f057 user: drh tags: trunk
14:47
Remove an unnecessary branch from the [be436a7f4587ce517ddc] fix. check-in: fb6ca99b user: drh tags: trunk
14:12
Add test cases for ticket [be436a7f4587ce517] using virtual table modules fts5 and rtree. check-in: 2101b420 user: dan tags: trunk
02:26
Defer schema resets when the query planner is running. Proposed fix for ticket [be436a7f4587ce517]. check-in: a7bc7752 user: drh tags: trunk
2017-08-16
19:20
Avoid a test for CURTYPE_BTREE in sqlite3VdbeCursorMoveto() in order to reduce the size and improve the performance of OP_Column. check-in: f078deb2 user: drh tags: trunk
14:16
Remove an unnecessary local variable from OP_Column, for a small size reduction and performance increase. check-in: 39543903 user: drh tags: trunk
11:04
Performance improvement in the OP_Column opcode. check-in: dc98a92f user: drh tags: trunk
2017-08-15
14:14
Small size and performance improvement in the OP_Column opcode. check-in: 2cf3f3de user: drh tags: trunk
03:46
Btree optimization: New field BtCursor.pPage that points to the current page, saving a single pointer dereference on each access. check-in: 373b71d1 user: drh tags: trunk
2017-08-14
23:53
Minor size and performance optimization to sqlite3BtreeCloseCursor(). check-in: 16969338 user: drh tags: trunk
18:13
Change the internal btree routine moveToRoot() to return SQLITE_EMPTY if the table is empty or if it has pgnoRoot==0. This simplifies the callers, making them smaller and faster. The SQLITE_EMPTY result code is intercepted and changed into SQLITE_OK before surfacing in an API. check-in: 240d5714 user: drh tags: trunk