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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 7ee570e7a9a2159a.

2016-04-21
16:44
If a call to sqlite3rbu_close() on an rbu handle opened by sqlite3rbu_vacuum() returns other than SQLITE_OK, delete the contents of the rbu_state table. This ensures that if an RBU vacuum operation either completes successfully or encounters an error, the next call to sqlite3rbu_vacuum() with the same parameters starts a new RBU vacuum operation. Closed-Leaf check-in: 6e4ac704 user: dan tags: rbu-vacuum
15:44
Merge the latest changes from trunk. Closed-Leaf check-in: 8183fa68 user: drh tags: skip-ahead-distinct
15:35
Merge all recent enhancements from trunk. check-in: a15c49ae user: drh tags: apple-osx
15:26
Fix a problem in rbu vacuum on tables with a large sqlite_master table. check-in: 23eac52e user: dan tags: rbu-vacuum
15:24
Add a function prototype in order to fix a compiler warning. check-in: 49aec971 user: drh tags: tempfiles-25
15:03
Merge updates from trunk. check-in: cc28106e user: drh tags: tempfiles-25
02:27
Add the SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION method for enabling sqlite3_load_extension() while leaving the load_extension() SQL function disabled. check-in: c4f165c4 user: drh tags: trunk
01:58
Test cases for SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION. Closed-Leaf check-in: debafa5e user: drh tags: load-ext-security
01:30
Revert sqlite3_enable_load_extension() to its original long-standing behavior. Add SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION which will enable only the C-API and leave the SQL function disabled. check-in: b2ae5bfa user: drh tags: load-ext-security
2016-04-20
20:08
Add a documentation comment for sqlite3rbu_vacuum() to sqlite3rbu.h. check-in: da5c753d user: dan tags: rbu-vacuum
19:30
When an error occurs while transitioning out of WAL mode, make sure the locking state is not left at EXCLUSIVE. check-in: 3340f086 user: drh tags: trunk
18:31
Fix a locking race condition in Windows 10 that can occur when two or more processes attempt to recover the same hot journal at the same time. check-in: 38a4e9d9 user: drh tags: trunk
17:47
Add fault injection tests for rbu vacuum. Fix some problems revealed by the same. check-in: f042fdd1 user: dan tags: rbu-vacuum
12:16
Merge all recent enhancements from trunk. check-in: 1f709fbf user: drh tags: begin-concurrent
00:30
API Change: Modify sqlite3_enable_load_extension() so that it only enables/disables the load_extension() SQL function, and leaves the C-APIs enabled at all times. In this way, applications can enable extension loading for the C interface without having to expose that capability to the SQL. check-in: edb454e4 user: drh tags: load-ext-security
2016-04-19
19:27
Updates to ensure the values of PRAGMA settings like "page_size", "auto_vacuum", "user_version" and "application_id" are not lost when a database is RBU vacuumed. check-in: 74ffea76 user: dan tags: rbu-vacuum
17:11
When an RBU vacuum is started on a db identified using a URI filename, pass the same URI parameters when creating the new version of the db. This ensures that RBU vacuum works with password protected databases. check-in: ca021ba8 user: dan tags: rbu-vacuum
16:20
Detect attempts to use rbu vacuum on a wal mode database (not allowed). And attempts to write to a database in the middle of an rbu vacuum (which prevents the vacuum from resuming). check-in: 00b2f4b0 user: dan tags: rbu-vacuum
2016-04-18
21:00
Another fix to rbu vacuum for a zipvfs case. check-in: 29407d70 user: dan tags: rbu-vacuum
18:18
Fix some zipvfs related problems in RBU vacuum. check-in: d76f4aaa user: dan tags: rbu-vacuum
17:30
Version 3.12.2 Leaf check-in: 92dc59fd user: drh tags: release, branch-3.12.0, version-3.12.2
16:18
Correctly interpret negative "PRAGMA cache_size" values when determining the cache-size used for sorting large amounts of data (i.e. the functionality in vdbesort.c). check-in: 39dd67af user: drh tags: branch-3.12.0
16:12
Fix a problem in the code generator for joins on virtual tables where the outer loop of the join uses the IN operator. check-in: a2cf4968 user: drh tags: branch-3.12.0
16:06
Fix the sqlite3BtreeDelete() routine so that it preserves the correct key even when the row being deleted is not on a leaf page. Fix for ticket [a306e56ff68b8fa56] check-in: 368e86c7 user: drh tags: branch-3.12.0
15:59
Increase the version number to 3.12.2. check-in: 9c37e9ce user: drh tags: branch-3.12.0
15:54
Remove quotes from identifiers used as datatype names in a CREATE TABLE statement. Fix for ticket [7d7525cb01b68] check-in: ab9d279f user: drh tags: branch-3.12.0
15:46
Remove quotes from identifiers used as datatype names in a CREATE TABLE statement. Fix for ticket [7d7525cb01b68] check-in: eba27d4d user: drh tags: trunk
13:36
Merge recent trunk changes. check-in: d9768de5 user: drh tags: tempfiles-25
13:30
sqlite3PCachePerecentDirty() should return 0 if the pcache is empty. check-in: 85f3d80e user: drh tags: tempfiles-25
13:09
The last parameter to pread64() and pwrite64() should be off64_t, not off_t. check-in: 3a7d7298 user: drh tags: trunk
09:17
Add the -vacuum switch to the "rbu" demonstration program. check-in: 9a0078a5 user: dan tags: rbu-vacuum
2016-04-16
19:02
Changes so that rbu vacuum works with zipvfs databases. check-in: bae7f875 user: dan tags: rbu-vacuum
17:53
Avoid creating any extra files ("<target>-vacuum") when running an RBU vacuum. Ensure that the OAL file created is "<target>-oal", not "<target>-vacuum-oal". check-in: dc19aacc user: dan tags: rbu-vacuum
15:03
Fix a couple of assert() statements that were failing with OOM error tests. check-in: 8eb3d7d8 user: dan tags: rbu-vacuum
2016-04-15
22:03
Add the SQLITE_SkipAhead optimization setting check-in: 87703b76 user: drh tags: skip-ahead-distinct
20:46
Add the experimental sqlite3rbu_vacuum() API function. For opening an RBU handle that rebuilds a database from scratch. check-in: 0216b48f user: dan tags: rbu-vacuum
16:27
Skip-ahead is now just an optimization. If it gets confused, it falls back to an incremental scan with redundancy elimination. check-in: 6fac0b92 user: drh tags: skip-ahead-distinct
16:17
Skip-ahead does not always work. So we still have to check for redundancy. check-in: db5a2364 user: drh tags: skip-ahead-distinct
15:54
Fixes to the skip-ahead distinct logic. More issues remain. check-in: 45a70b2b user: drh tags: skip-ahead-distinct
15:06
Merge enhancements from trunk, especially the ".eqp full" enhancement to the command-line shell. check-in: 491f0dbd user: drh tags: skip-ahead-distinct
15:03
CLI enhancement: Add the ".eqp full" option, that shows both the EXPLAIN QUERY PLAN and the EXPLAIN output for each command run. Also disable any ".wheretrace" and ".selecttrace" when showing EQP output. check-in: 3e217d62 user: drh tags: trunk
14:13
Several new test cases that cause failures. check-in: 0379f2cf user: drh tags: skip-ahead-distinct
13:24
Fixed crash bugs. Still sometimes gets the wrong answers. check-in: 2afcb2c7 user: drh tags: skip-ahead-distinct
01:55
Progress toward getting DISTINCT to use a seek to advance to the next distinct row, when driven by an appropriate index. check-in: 9e14aa14 user: drh tags: skip-ahead-distinct
2016-04-14
19:29
Work toward improving analysis and code generation for DISTINCT and aggregate queries. Leaf check-in: 129083bd user: drh tags: better-distinct-agg
17:29
In the ICU extension toupper() and tolower() SQL functions, avoid calling u_strToUpper() or u_strToLower() a second time if the buffer passed to the first invocation turns out to be large enough. check-in: d23e5813 user: dan tags: trunk
16:40
Add the SF_HasAgg constant (currently unused). Also enhance the comments on many other constant definitions to detail constraints on their values. check-in: 7b7a69d0 user: drh tags: trunk
15:44
Correctly interpret negative "PRAGMA cache_size" values when determining the cache-size used for sorting large amounts of data (i.e. the functionality in vdbesort.c). check-in: 79147dca user: dan tags: trunk
15:38
Add some missing testcase() macros to the pushDownWhereTerms() routine. check-in: 67d7f79c user: drh tags: trunk
13:35
Rename WhereInfo.pResultSet to pDistinctSet to more accurately reflect what it represents. check-in: 53179614 user: drh tags: trunk
13:16
Since the return value of sqlite3OsClose() is always ignored, we might as well make it "void" instead of "int", and thereby save 50 bytes in the compiled binary. check-in: 7ee570e7 user: drh tags: trunk
13:06
Additional ".selecttrace" debugging output when the query is transformed from a DISTINCT into a GROUP BY. check-in: 5a469145 user: drh tags: trunk
2016-04-13
21:00
Fix compiler warnings by removing surplus local variables in the schema pretty-printer logic of the command-line shell. check-in: 55a62483 user: drh tags: trunk
19:20
Merge enhancements from trunk via tempfiles-lazy-open. check-in: ae16310c user: drh tags: tempfiles-25
16:52
On commit, flush dirty temp-file pages only if the file is already open and 25% or more of the cache is dirty. check-in: f6babf29 user: dan tags: tempfiles-25
16:02
Merge enhancements from trunk. Closed-Leaf check-in: e2edd34e user: drh tags: tempfiles-lazy-open
15:52
Fixes for harmless compiler warnings. check-in: 68142dc5 user: drh tags: trunk
15:33
Add the --indent option to the .schema and .fullschema commands in the shell, to enable simple but effective pretty-printing. check-in: 83cfe82c user: drh tags: trunk
2016-04-12
20:26
A couple more compiler warning fixes. Closed-Leaf check-in: 929fa4c3 user: mistachkin tags: warnings
20:15
Even more compiler warning fixes. check-in: 7faec9ea user: mistachkin tags: warnings
20:05
More harmless compiler warning fixes. check-in: ab69527c user: mistachkin tags: warnings
19:30
Compilation fix for a C99-ism in the 'fts3view' tool. check-in: bedb88a4 user: mistachkin tags: trunk
19:20
Fix harmless compiler warnings in the 'session' module. check-in: a18a6ce2 user: mistachkin tags: trunk
19:09
Once a temporary database file has been opened, flush all dirty pages to disk when comitting a transaction. check-in: bbac71aa user: dan tags: tempfiles-lazy-open
17:13
Fix speedtest1 so that it automatically unlinks its test database prior to startup. check-in: b65b69f6 user: drh tags: trunk
16:59
Add the --temp option to the speedtest1.c performance test program. check-in: 8053a6e2 user: drh tags: trunk
16:23
Improved localtime() support for WindowsCE check-in: 662c32af user: drh tags: trunk
16:11
Add and adjust comments. Closed-Leaf check-in: 541c6da2 user: mistachkin tags: winCeLocalTime
16:10
Merge enhancements from trunk. check-in: 9682c043 user: drh tags: tempfiles-lazy-open
16:04
Add the sqlite3_snapshot_cmp() interface (available only with SQLITE_ENABLE_SNAPSHOT). check-in: 7e728965 user: drh tags: trunk
15:14
Update the documentation for sqlite3_snapshot_cmp() to make the circumstances under which the comparison is valid clearer. Add tests for the same. Closed-Leaf check-in: 8fc83474 user: dan tags: snapshot-cmp
11:58
Update the header comment on the memjournal.c file. No code changes. check-in: 07f10dea user: drh tags: trunk
00:26
Performance optimization the Vdbe allocator. check-in: e2c4995b user: drh tags: trunk
00:16
Avoid unnecessary calls to object destructors for a small performance gain. check-in: aec94b6e user: drh tags: trunk
00:00
Performance improvements in sqlite3WhereExprUsage(). check-in: fdf75239 user: drh tags: trunk
2016-04-11
22:45
Further refinements. check-in: b35bb928 user: mistachkin tags: winCeLocalTime
22:24
Merge updates from trunk. check-in: b8094166 user: mistachkin tags: winCeLocalTime
22:23
Fix typo in the MSVC makefile. check-in: 3189a7f1 user: mistachkin tags: trunk
22:10
Fix some compilation issues. check-in: 016481b3 user: mistachkin tags: winCeLocalTime
19:59
Add the sqlite3_snapshot_cmp() API. check-in: c698a21a user: dan tags: snapshot-cmp
19:24
Fix a typo in temptable2.test. check-in: 04b1890f user: dan tags: tempfiles-lazy-open
19:23
Add tests for wal mode to temptable2.test. check-in: c6d0d441 user: dan tags: tempfiles-lazy-open
19:01
Performance optimization to sqlite3Dequote() and its callers. check-in: 9efe2265 user: drh tags: trunk
18:50
Merge latest trunk changes with this branch. check-in: ffc62af1 user: dan tags: tempfiles-lazy-open
18:49
Add extra tests to temptable2.test. check-in: 7dd9d4c1 user: dan tags: tempfiles-lazy-open
18:25
Performance optimization for the sqlite3ExprListDelete() routine. check-in: 2764aeaa user: drh tags: trunk
18:15
Performance optimizations in the column cache of the code generator, and especially the sqlite3ExprCacheRemove() routine. check-in: e35b345c user: drh tags: trunk
18:07
Fixes for OOM and IO error handling with temp file databases. check-in: 4eb06e84 user: dan tags: tempfiles-lazy-open
16:43
Simplification and performance improvements in sqlite3ExprDup() and its subroutines. More work is possible in this area. check-in: 476cc283 user: drh tags: trunk
16:35
Rename the OP_MX_JUMP macro to SQLITE_MX_JUMP_OPCODE to avoid confusing the opcode name generator. check-in: e554a4c3 user: drh tags: trunk
14:49
Performance improvement in sqlite3ExprDelete(). check-in: 60ad80e3 user: drh tags: trunk
13:36
Remove the VdbeOp.opflags field and its associated initialization overhead. Update mkopcodeh.tcl to reorder opcode numbers to help the resolveP2Values() routine run faster. check-in: 099478fa user: drh tags: trunk
09:39
Update this branch with the latest changes from the trunk. check-in: 982b753d user: dan tags: tempfiles-lazy-open
01:43
Back off of the parser optimization in the previous check-in, slightly, to preserve some backwards compatibility regarding some undocumented behavior in the '#AAA' style query parameter. check-in: ef1966c2 user: drh tags: trunk
01:26
Small size reduction and performance improvement in the parser. check-in: 16df7128 user: drh tags: trunk
01:06
Factor out the common operation of setting the Expr.x.pSelect field of an Expr object into a subroutine. check-in: 6a5cceee user: drh tags: trunk
2016-04-09
18:04
Fix a problem in the code generator for joins on virtual tables where the outer loop of the join uses the IN operator. check-in: 6c56b3a0 user: drh tags: trunk
17:04
Fix the sqlite3BtreeDelete() routine so that it preserves the correct key even when the row being deleted is not on a leaf page. Fix for ticket [a306e56ff68b8fa56] check-in: ca2ef8a8 user: drh tags: trunk
14:36
Limit the number of digits shown in the "prereq" mask for ".wheretrace" debugging output. check-in: 3686ed74 user: drh tags: trunk
2016-04-08
21:35
Attempt to treat the arguments to a table-valued function as if they occur in the ON clause of a LEFT JOIN rather than in the WHERE clause. But this causes undesirable behavior with generate_series, as demonstrated by test cases. This is an incremental check-in pending further work. Leaf check-in: 00ac73a0 user: drh tags: tabfunc-in-left-join