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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 most recent check-ins that include changes to files matching 'src/*'

2019-10-19
18:47
Work toward getting generated columns to work with triggers. Still more work to do in this area. Leaf check-in: 932a3727 user: drh tags: generated-columns
15:01
Add testcase macros. check-in: fb9c9bb2 user: drh tags: generated-columns
13:29
Refactor names of column index transformation functions, for clarity. Get generated columns working with ALTER TABLE RENAME COLUMN. check-in: 27ab41c9 user: drh tags: generated-columns
2019-10-18
18:33
Fixes for WITHOUT ROWID tables with VIRTUAL columns and an INTEGER PRIMARY KEY. check-in: 86074da0 user: drh tags: generated-columns
17:47
Merge trunk enhancements into the generated-columns branch. check-in: 85bc4524 user: drh tags: generated-columns
17:42
Get generated columns working for WITHOUT ROWID tables. check-in: 9f409649 user: drh tags: generated-columns
15:58
Enhance the ".imposter" command in the CLI so that the first argument can be an existing WITHOUT ROWID table instead of an index. The resulting imposter is the same table, but with columns in storage order and with all constraints removed. check-in: 9dc0d345 user: drh tags: trunk
12:52
Claw back some performance from the sqlite3ExprGetColumnOfTable() routine. check-in: e8426acb user: drh tags: generated-columns
12:14
Fix sqlite3ColumnOfIndex() to account for virtual columns. check-in: 44727112 user: drh tags: generated-columns
10:05
Get indexes working on virtual columns. check-in: 450c4876 user: drh tags: generated-columns
02:19
STORED columns can now reference other STORED columns, in any order, as long as there are not loops. check-in: 0d236698 user: drh tags: generated-columns
2019-10-17
18:35
In the Table object, change the nVCol field to nNVCol - the number of non-virtual columns, as that is the quantity that we need most. check-in: 4ad66af0 user: drh tags: generated-columns
18:07
Bug fix with INSERT using an explicit column list on a table with a non-final STORED column. check-in: 61b4459a user: drh tags: generated-columns
17:54
Some (but not all) INSERT and UPDATE statements now work for STORED columns. check-in: fe7517bf user: drh tags: generated-columns
16:16
Fix the xfer optimization for generated columns, so that VACUUM works again. check-in: 8f67b89b user: drh tags: generated-columns
15:59
Basic UPDATE functionality working for VIRTUAL columns. check-in: c21959d4 user: drh tags: generated-columns
14:21
Bug fixes so that "make test" once against runs with no errors. check-in: 7bfe0f67 user: drh tags: generated-columns
13:15
Fix the table_info and table_xinfo pragmas so that they work with virtual columns. Table_info omits virtual columns. Table_xinfo gives them a "hidden" flag of 2, and 3 for STORED columns. check-in: 069351b8 user: drh tags: generated-columns
2019-10-16
22:01
INSERT with named columns for a table with generated columns. check-in: 64db39f9 user: drh tags: generated-columns
20:05
ALTER TABLE is able to add a VIRTUAL column. check-in: 120c6b78 user: drh tags: generated-columns
19:31
Simple INSERT and SELECT operations working with VIRTUAL columns. check-in: 7f9f90b1 user: drh tags: generated-columns
17:46
Enhancements to SQL query normalization for UPDATE statements. check-in: bba975c7 user: mistachkin tags: trunk
14:56
If an AFTER DELETE trigger fires when a conflict row is deleted by REPLACE conflict resolution, make sure the conflict really has been resolved and that the trigger did not recreate the row before continuing. Ticket [a8a4847a2d96f5de] check-in: eea1e7aa user: drh tags: trunk
12:18
Initial experimental code for generated column support. Non-functional. check-in: 11d472c1 user: drh tags: generated-columns
2019-10-15
19:01
Formatting change on a multi-line conditional, for improved clarity. No logic changes. check-in: 7248e347 user: drh tags: trunk
2019-10-14
20:32
Futher improvements to the IN operator for row-values on virtual tables. check-in: bc751fb6 user: drh tags: trunk
15:15
Fix a problem with row-value IN(...) operators and virtual tables. check-in: aa57d7ab user: dan tags: trunk
2019-10-12
23:38
When Select-Trace is enabled (in debugging builds only) do not show the result of Window function tree rewrites if there are no window functions. check-in: d1acf72a user: drh tags: trunk
2019-10-11
17:14
Futher improvements to LEFT JOIN strength reduction. check-in: 8a39167b user: drh tags: trunk
16:01
Improvements to the LEFT JOIN strength reduction optimization. check-in: 548082df user: drh tags: trunk
14:21
Faster response to sqlite3_interrupt() in the OP_IntegrityCk and OP_Count opcodes. check-in: bf875dc5 user: drh tags: trunk
11:21
Merge the 3.30.1 changes into reuse-schema. Leaf check-in: eff7cd7f user: drh tags: reuse-schema-3.30
2019-10-10
23:58
Fix harmless compiler warning seen with MSVC. check-in: 73a82114 user: mistachkin tags: trunk
17:09
Prevent SQLite from assuming that if ((? IS NOT NULL) IS NOT NULL) is true, ? may not be NULL. Fix for [c31034044bb72c89]. check-in: 7833feec user: dan tags: trunk
16:21
Avoid assuming that an expression that contains the sub-expression (? IS FALSE) or (? IS TRUE) may only be true if ? is non-null. Fix for [a976c487]. check-in: c6cc2390 user: drh tags: branch-3.30
16:10
Fix a problem with running ALTER TABLE ADD COLUMN statements within a transaction that writes to one or more virtual tables. Fix for [8fe768e9]. check-in: a4974a0f user: drh tags: branch-3.30
15:57
Fix the OP_SeekRowid opcode so that it works correctly with a Real argument without damaging the value in the register that is the argument. Ticket [b2d4edaffdc156cc]. Test cases in TH3. check-in: b02630fe user: drh tags: branch-3.30
15:48
Be sure to rewrite column references inside FILTER clauses and window frame definitions when flattening queries. Fix for [1079ad19]. check-in: df2060f3 user: drh tags: branch-3.30
15:17
Be sure to rewrite column references inside FILTER clauses and window frame definitions when flattening queries. Fix for [1079ad19]. check-in: ccba7202 user: dan tags: trunk
2019-10-09
21:14
Avoid assuming that an expression that contains the sub-expression (? IS FALSE) or (? IS TRUE) may only be true if ? is non-null. Fix for [a976c487]. check-in: eb7ed90b user: dan tags: trunk
17:38
Merge recent fixes and enhancements from trunk. Leaf check-in: 553258c2 user: drh tags: 2-size-lookaside
17:06
An alternative, experimental lookaside memory allocator that uses two different slot sizes. check-in: 5ba8cee8 user: sperry tags: 2-size-lookaside
15:37
An improved fix for the dbsqlfuzz-discovered ALWAYS() failure following OOM in sqlite3ExprCollSeq(). This time with a test case (engineered by Dan). check-in: 907f7965 user: drh tags: trunk
15:00
Change sqlite3SelectDup() to always return NULL if an OOM has occurred. check-in: 01ba4641 user: drh tags: trunk
01:19
Save CPU cycles in sqlite3Prepare() by, among other things, shifting the EXPLAIN column label logic over to sqlite3VdbeMakeReady(). check-in: 1ca5ef84 user: drh tags: trunk
2019-10-08
19:45
Store 64-bit offset values in osinst log files. Leaf check-in: 74d975c6 user: dan tags: osinst
2019-10-07
20:33
Omit a pointless memory allocation in vdbeSorterSort(). check-in: 5d76dbc5 user: drh tags: trunk
18:43
Fix a problem with running ALTER TABLE ADD COLUMN statements within a transaction that writes to one or more virtual tables. Fix for [8fe768e9]. check-in: 31e85fbb user: dan tags: trunk
13:26
Fix a faulty assert() statement in the sqlite3VdbeMemExpandBlob() routine. check-in: 69a26ead user: drh tags: trunk
10:29
Avoid attempting to read 0 bytes from a file in the osinst vtab code. check-in: 1fb76c3e user: dan tags: osinst
01:05
Fix the OP_SeekRowid opcode so that it works correctly with a Real argument without damaging the value in the register that is the argument. Ticket [b2d4edaffdc156cc]. Test cases in TH3. check-in: 3cde82c8 user: drh tags: trunk
2019-10-05
19:53
Omit the check for conflicting shared-cache locks in sqlite3Prepare() if the database connection uses no shared cache. We might be able to go back and remove this code completely, due to the newer Schema.iGeneration logic, but that will take more analysis. This check-in gives the speed benefit but not the reduction in code size. check-in: 0b73a092 user: drh tags: trunk
19:24
Optimization to sqlite3VtabUnlockList() for the common case when there is no work to do. check-in: fc8d4508 user: drh tags: trunk
19:17
Add a timestamp to each osinst log entry, to facilitate merging multiple log files. check-in: c9519c0c user: dan tags: osinst
18:33
Call sqlite3Prepare() directly, rather than going through sqlite3_prepare(), when processing the sqlite_master.sql column for a schema. check-in: cc49380e user: drh tags: trunk
17:29
Have sqlite3.c automatically turn on osinst logging for all connections. check-in: eea231f8 user: dan tags: osinst
15:28
Reorder two comparisons for a small performance gain in OP_Transaction. check-in: d7667f65 user: drh tags: trunk
14:39
Performance optimization to the lookaside-memory disabling mechanism. check-in: 17ce1c49 user: drh tags: trunk
2019-10-04
16:24
Bring the begin-concurrent-pnu-wal2 branch up-to-date with 3.30.0. Leaf check-in: dd09f7ce user: drh tags: begin-concurrent-pnu-wal2
16:15
Bring the wal2 branch up to date with version 3.30.0 Leaf check-in: 16e1dced user: drh tags: wal2
16:08
Bring the begin-concurrent-pnu branch up-to-date with version 3.30.0. Leaf check-in: a4d26bcf user: drh tags: begin-concurrent-pnu
15:52
Bring the begin-concurrent branch up-to-date with the 3.30.0 release. Leaf check-in: abd1b4df user: drh tags: begin-concurrent
15:41
Bring the apple-osx branch up-to-date with the 3.30.0 release. Leaf check-in: 76b26aca user: drh tags: apple-osx
15:31
Bring the reuse-schema branch up-to-date with version 3.30.0. Leaf check-in: 6e09afec user: drh tags: reuse-schema
2019-10-03
14:51
Increase the precision of floating point value display in VDBE debugging output. No changes to normally deployed code. check-in: a561a656 user: drh tags: trunk
14:36
Fix some test script issues that come up with SQLITE_OMIT_VIRTUALTABLE builds. check-in: 3934d2d0 user: dan tags: trunk
2019-10-02
00:25
Disable sqlite3_drop_module() tests when virtual tables are omitted from the build. check-in: 9f4035f9 user: drh tags: trunk
2019-09-30
16:57
Merge in the 3.30.0 beta 1 changes. check-in: 06796124 user: drh tags: reuse-schema
16:49
Merge in the 3.30.0 beta 1 enhancements. check-in: ebf88726 user: drh tags: begin-concurrent-pnu-wal2
16:44
Merge 3.30.0 beta 1 changes from trunk. check-in: 918bd97d user: drh tags: wal2
16:43
Merge version 3.30.0 beta 1 changes from trunk. check-in: ac4b6442 user: drh tags: begin-concurrent-pnu
16:14
Merge the 3.30.0 beta 1 changes from trunk. check-in: a003818f user: drh tags: begin-concurrent
16:13
Merge the 3.30.0 beta 1 changes from trunk. check-in: 9ce4c791 user: drh tags: apple-osx
2019-09-28
18:28
Add missing comment to constant definitions. check-in: 661a3789 user: drh tags: trunk
16:14
Improvements to a comment. No code changes. check-in: 1a3671c7 user: drh tags: trunk
2019-09-27
16:33
Allow compile-time options -DHAVE_GETHOSTUUID=0 and -DHAVE_GETHOSTUUID=1. check-in: 3bcb9cc1 user: drh tags: trunk
15:15
Alternative implementation of the previous check-in which is testable. check-in: 102ef644 user: drh tags: trunk
15:01
Fix sqlite3ExprCompare() so that it ignores differences in the Expr.iTable field for IN operators, as otherwise it can lead to false negatives, which is usually harmless, but can cause problems for an assert() in the window function logic. check-in: 6a204b19 user: drh tags: trunk
2019-09-26
20:05
Allow DROP TABLE to work on tables name "sqlite_parameters" just as it does with tables named "sqlite_stat%". Fix for the ".parameter clear" command in the shell. check-in: e768179b user: drh tags: trunk
16:08
Test for an OOM condition in resolveAlias(). check-in: 322eca7f user: drh tags: trunk
15:53
Fix a window-functions problem that could occur if an ORDER BY clause contains an alias for a window-function that is not a top-level expression. check-in: 1cc6cf64 user: dan tags: trunk
2019-09-25
18:44
Add a missing VdbeCoverage() macro. check-in: 36d35dbd user: drh tags: trunk
17:47
Remove an unused variable. check-in: a1988445 user: drh tags: trunk
16:41
Further simplifications to window-function code. check-in: 5fe15c1d user: dan tags: trunk
11:49
In the previous check-in, the variable should be openMode, not openFlags. check-in: 77b0db22 user: drh tags: trunk
10:36
In the unix VFS layer, do not attempt to chown() the journal to be the same as the database if running in 8+3 filename mode. Also, update the comments on the chown() attempt to be more precise. check-in: ab853724 user: drh tags: trunk
02:07
Simplifications to the window-function code. check-in: 489a1eb3 user: drh tags: trunk
2019-09-24
20:20
Bug fixes for window frames of the form (... RANGE BETWEEN b PRECEDING AND a PRECEDING) or (... RANGE a FOLLOWING AND b FOLLOWING) where (a > b). check-in: 040e196a user: dan tags: trunk
2019-09-23
12:38
Omit the sqlite3IntTokens array constant for a code simplification. check-in: f907395e user: drh tags: trunk
11:55
When a scalar subquery has a pre-existing "LIMIT X" then change it to "LIMIT X<>0" rather than just "LIMIT 1" so that if X is 0 the limit will still be zero. Ticket [99cd4807dc03f178]. Test cases in TH3. check-in: 82e5dcf5 user: drh tags: trunk
2019-09-21
18:49
Fix a harmless unused variable warning in the test logic. check-in: d7673a44 user: drh tags: trunk
17:31
Fix harmless compiler warnings. check-in: 8ea1dc72 user: drh tags: trunk
15:44
Allow SQLite to omit redundant ORDER BY sorts in the case where a SELECT statement has GROUP BY and ORDER BY clauses that use the same expressions, even when the ORDER BY expressions are marked "DESC". check-in: 20f7951b user: dan tags: trunk
2019-09-20
21:12
Simplify the fix in the previous commit. check-in: 5ef64b0f user: dan tags: trunk
20:52
Fix a problem with queries containing a min() or max() function for which the FILTER clause excludes all rows. check-in: b1d7e104 user: dan tags: trunk
2019-09-18
20:34
Always clear the temporary register cache after coding a subroutine. check-in: b6f2a7f9 user: drh tags: trunk
17:22
Add extra tests for the handling of corrupt records in fts3. check-in: 40e29a47 user: dan tags: trunk
12:49
Fix another potential "jump depends on uninitialized value" warning. check-in: 633b214e user: drh tags: trunk
11:16
Fix an OOB read in the INSTR() function introduced yesterday by check-in [3fb40f518086c1e8] and detected by OSSFuzz. The test case is in TH3. check-in: d49047c1 user: drh tags: trunk
2019-09-17
21:28
Do not change the OP_String8 opcode into OP_String until *after* any necessary encoding conversions are accomplished. Otherwise, a rerun of the prepared statement after an OOM can result in errors. Test case in TH3. check-in: 8efd6259 user: drh tags: trunk