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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 fdf752394b48fb7b.

2016-04-18
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
19:44
Update documentation for sqlite3_snapshot_open(). No code changes. check-in: 1dfa5234 user: drh tags: trunk
15:09
Version 3.12.1 check-in: fe7d3b75 user: drh tags: release, branch-3.12.0, version-3.12.1
2016-04-07
23:18
Enhance the query planner so that IS and IS NULL operators are able to drive an index on a LEFT OUTER JOIN. check-in: 84d2a09e user: drh tags: branch-3.12.0
21:29
Update the version number to 3.12.1. This is the first release candidate. check-in: 300f1b61 user: drh tags: branch-3.12.0
21:29
Carry table column types through into VIEW definitions, where possible. check-in: 3360ab09 user: drh tags: branch-3.12.0
21:22
Prevent the in-memory journal read cursor from entering an inconsistent state when it reads the last few bytes out of the journal file. Fix for ticket [7f7f8026eda38]. check-in: c232b99e user: drh tags: branch-3.12.0
21:14
Add test cases for ticket [7f7f8026eda387d544]. check-in: 87aa9357 user: drh tags: trunk
18:42
Prevent the in-memory journal read cursor from entering an inconsistent state when it reads the last few bytes out of the journal file. Fix for ticket [7f7f8026eda38]. check-in: c4b9c611 user: drh tags: trunk
14:16
Avoid decrementing a pointer off the front end of the buffer in OP_MakeRecord. check-in: 153135bf user: drh tags: trunk
14:05
Instead of just commenting out the unneeded code in the previous check-in, remove it completely. check-in: 8415d484 user: drh tags: trunk
14:01
Remove an unnecessary test for a NULL pointer in freeP4(). check-in: e84e88e3 user: drh tags: trunk
13:45
Update comments on the unix file locking protocol. No changes to code. check-in: 716b20de user: drh tags: trunk
2016-04-06
18:20
For a pager backed by a temp file, store the main journal in memory until it is at least sqlite3_config.nStmtSpill bytes in size. Prevent the backup API from being used to change the page-size of a temp file. check-in: 84c55701 user: dan tags: tempfiles-lazy-open
17:32
Add a couple options to the MSVC makefile. check-in: ea4de04d user: mistachkin tags: branch-3.12.0
16:27
Fix a problem in test script lock.test. Fix minor issues in pager.c. check-in: 84de8813 user: dan tags: tempfiles-lazy-open
15:39
Add tests to this branch. Fix a problem with temporary databases in auto-vacuum mode. check-in: afe9bd9b user: dan tags: tempfiles-lazy-open
2016-04-05
23:39
Remove an unnecessary branch in the sqlite3LogEstToInt() routine. check-in: da81d7af user: drh tags: trunk
21:07
Defer opening the file used for the temp database (where CREATE TEMP TABLE tables are stored) until the database is too large to reside entirely within the cache. There are likely still problems on this branch. check-in: be5a549e user: dan tags: tempfiles-lazy-open
20:59
Carry table column types through into VIEW definitions, where possible. check-in: fb555c3c user: drh tags: trunk
19:46
Remove superfluous directories from the Makefile clean targets. check-in: 0bf9926c user: mistachkin tags: trunk
18:24
Oops. Branched from the wrong baseline. Ignore this one. Closed-Leaf check-in: 8f1f300c user: drh tags: mistake
17:59
Merge updates from trunk. check-in: 00990020 user: mistachkin tags: winCeLocalTime
17:50
Add the SQLITE_DBCONFIG_REQUIRE_TXN argument for sqlite3_dbconfig() which when set requires an explicit transaction before updating the database. check-in: b7570ac1 user: drh tags: require-write-txn
15:59
Incorrect version of build.c checked in at [87e5f5a6c60e3] (because I neglected to press the "Save" button on the text editor). There is no change to the logic, just improved presentation. check-in: cf569f9f user: drh tags: trunk