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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 740d5ff6cc9bf7b1.

2019-05-08
18:49
Add tests to improve code coverage of the RBU module. check-in: ecb56b75 user: dan tags: trunk
17:27
Provide the SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA compile-time option to omit the case_sensitive_like pragma. This change, in combination with documentation changes, is the current solution to ticket [a340eef47b0cad5]. check-in: eabe7f2d user: drh tags: trunk
11:52
Fix VDBE opcodes OP_SeekLT and OP_SeekLE so that they work on intkey tables with non-numeric text values. Fix for [9cf6c9bb]. check-in: 658b84d7 user: dan tags: trunk
11:42
Fix VDBE opcodes OP_SeekLT and OP_SeekLE so that they work on intkey tables with non-numeric text values. Closed-Leaf check-in: a870c196 user: dan tags: tkt-9cf6c9bb
04:33
Remove an ALWAYS() that was previously added by check-in [a0819086] but which turns out can sometimes be false. check-in: ad8fc5d8 user: drh tags: trunk
03:34
Remove a NEVER() that was added in the previous check-in [a0819086a521f] because it is in fact reachable. check-in: 74eba255 user: drh tags: trunk
00:17
Earlier detections of errors in the byte-offset-to-cell-content integer at offset 5 in the header of a btree page. check-in: a0819086 user: drh tags: trunk
2019-05-07
20:06
Generate all records for INSERT or UPDATE prior to running foreign key constraint checks, since the FK checks might modify the datatype of registers used to generate the records. Fix for ticket [e63cbcfd3378afe6980d6]. check-in: 3c75605b user: drh tags: trunk
19:44
Do not commit an "OR FAIL" statement that causes foriegn key constraint violations. check-in: 659c551d user: dan tags: trunk
19:21
Add test cases for the fix on this branch. Closed-Leaf check-in: 2e31abe0 user: dan tags: tkt-e63cbcfd
19:13
On an INSERT or UPDATE, generate the new table record prior to running foreign key checks, in case the foreign key checks changes datatypes on the registers holding column values. Proposed fix for ticket [e63cbcfd3378afe6980d626]. check-in: 3f1c8051 user: drh tags: tkt-e63cbcfd
17:47
Strive to prevent harmless compiler warnings in GCC 4.8.5. check-in: 8b6691f6 user: drh tags: trunk
16:37
Optimize the restarting of an RBU vacuum. check-in: 82062351 user: dan tags: trunk
16:28
Remove some redundant code from sqlite3rbu.c. Add test cases for RBU vacuum. Closed-Leaf check-in: 7b051698 user: dan tags: rbu-opt
02:57
Add the exprNodeCopy() routine that will safely memcpy() an Expr node that might be a size-reduced node. Leaf check-in: ab2ba8e7 user: drh tags: expr-node-copy-patch
2019-05-06
20:40
Optimize further cases of restarting an RBU vacuum. check-in: 6b3261bf user: dan tags: rbu-opt
16:15
Fix a problem with renaming an INTEGER PRIMARY KEY column of a WITHOUT ROWID table using ALTER TABLE. check-in: 91f701d3 user: dan tags: trunk
2019-05-04
20:04
Optimize some cases of restarting an RBU vacuum. check-in: cdc09867 user: dan tags: rbu-opt
17:32
Fix the NOT NULL logic in the theorem prover that determines when a partial index can be used. Ticket [5c6955204c392ae763a95]. check-in: c2e439bc user: drh tags: trunk
03:56
Fix harmless compiler warning seen with MSVC. check-in: 5862b83e user: mistachkin tags: trunk
01:41
In the sqlite3_value or Mem object, make the MEM_IntReal type completely independent from MEM_Int and MEM_Real. This helps avoid problems when inserting non-float values into a "REAL" column. check-in: 5a8a23ee user: drh tags: trunk
01:29
New testcase macros to ensure that MEM_IntReal is fully tested. Closed-Leaf check-in: 8b8ef445 user: drh tags: int-real
2019-05-03
21:17
Add the SQLITE_TESTCTRL_RESULT_INTREAL test-control and use it to create the intreal() SQL function in testfixture. Write a few simple tests to prove this all works. TH3 will hold most of the INTREAL tests, probably. check-in: c9838731 user: drh tags: int-real
19:34
Ensure that UTF16 strings are properly zero-terminated before returning them in an sqlite3_value_text16() request, even if the string is invalid UTF16 because it was formed from an arbitrary and/or odd-length BLOB. check-in: 3a16ddf9 user: drh tags: trunk
18:50
Fix a memory-leak/segfault caused by using OP_OpenDup and OP_OpenEphemeral on the same VM cursor. check-in: a9b90aa1 user: dan tags: trunk
17:19
Fix a problem where self-joins on views that are aggregate queries may return the wrong result. check-in: 74ef97bf user: dan tags: trunk
17:08
Improved comments on the elements of the array constant used to implement the sqlite3_value_type() interface. check-in: f73a7de7 user: drh tags: int-real
02:41
Fix the ".open --hexdb" command in the CLI so that it works even with terminal input. check-in: 9b5d9434 user: drh tags: trunk
2019-05-02
21:36
Make MEM_IntReal a completely independent type, meaning a floating point value stored as an integer. This fixes a problem with arithmetic within arguments to string functions on indexes of expressions. But it is a big change and needs lots of new testcase() macros for MC/DC and so it is initially put on this branch. check-in: dba836e3 user: drh tags: int-real
17:45
Ensure that the typeof() function always returns SQLITE_FLOAT for floating point values even when the value is stored as an integer to save space. check-in: 48889530 user: drh tags: trunk
17:06
Add options to wapptest.tcl similar to those supported by releasetest.tcl. Also add the -noui switch, for running without wapp altogether. check-in: 005a1694 user: dan tags: trunk
15:56
Earlier detection of a database corruption case in balance_nonroot(), to prevent a possible use of an uninitialized variable. check-in: c509d8a8 user: drh tags: trunk
14:15
Merge enhancements from trunk check-in: 3a4751a9 user: drh tags: hard-heap-limit
01:41
The "LIKE Optimization" (which converts a LIKE into a BETWEEN operator that is able to use an index) does not work and cannot be used if the collating sequence of the column is not TEXT and if the pattern starts with a "+" sign. This is another case of ticket [c94369cae9b561b1f996d005]. The new test case was discovered by Manuel Rigger. check-in: b043a54c user: drh tags: trunk
00:52
Fix an issue (discovered by OSSFuzz) in the enhanced OP_Concat operator from check-in [713caa382cf7dd] earlier today. check-in: 3e897702 user: drh tags: trunk
2019-05-01
19:01
Add a test case for ticket [ae0f637bddc5290b44669e066a]. check-in: ece48169 user: drh tags: trunk
18:59
When values have real affinity and are converted into strings for CHECK constraints or index expressions, do the conversions into a real-number format even if the values are stored as integers for efficiency. This appears to fix ticket [ae0f637bddc5290b446]. check-in: 5997d075 user: drh tags: trunk
17:36
Fix an incompatibility with -DSQLITE_OMIT_LOAD_EXTENSION=1 in dbdata.test. check-in: a77cd85b user: dan tags: trunk
17:32
Fix a case in wapptest.tcl where a failed test might report 0 errors. check-in: 2be1ed70 user: dan tags: trunk
15:32
Avoid unwelcomed side effects on the input operands in the OP_Concat operator. Fix for ticket [3be1295b264be2fac49b681] check-in: 713caa38 user: drh tags: trunk
15:25
Update wapptest.tcl so that it deletes extra files if the "Keep files:" checkbox is clear. Set it by default. check-in: 09623cc4 user: dan tags: trunk
14:41
In "PRAGMA vdbe_trace" output, show the results of OP_Affinity opcodes. check-in: 56604bb6 user: drh tags: trunk
08:48
Fix an incompatibility with auto-vacuum mode in new test script recover.test. check-in: 36dd5b08 user: dan tags: trunk
2019-04-30
20:43
Update wapptest.tcl to use a simpler slave script. And to leave scripts wapptest_configure.sh and wapptest_make.sh in each test directory. check-in: 07e527d7 user: dan tags: trunk
15:36
Fix a problem allowing a Table object to be deleted from within a call to the xDestroy method of the associated virtual table, causing a use-after-free error. check-in: 1dbbb010 user: dan tags: trunk
14:26
Fix an error message in the Lemon parser generator. check-in: b6d7d42b user: drh tags: trunk
11:54
Small performance increase and size reduction in the implementation of the LIKE and GLOB operators. check-in: f97626f9 user: drh tags: trunk
01:08
Slightly smaller and faster implementation of the OP_MakeRecord opcode. check-in: 3bdce7ef user: drh tags: trunk
2019-04-29
16:44
Changes to oserror.test so that it works even on systems that allow an unusually large number of file descriptors. check-in: a27b0b88 user: drh tags: trunk
13:48
Do not de-duplicate columns index columns associated with a WITHOUT ROWID table if the columns have different collating sequences. This is the fix for ticket [3182d3879020ef3b2]. There is one test case added, but most of the tests are done in TH3. check-in: 1b1dd4d4 user: drh tags: trunk
13:30
Improved header comment and precondition checking for the new isDupColumn() function. Closed-Leaf check-in: 740d5ff6 user: drh tags: tkt-3182d38790
11:41
Fix a buffer overwrite in shell.c.in (part of the new .recover code). check-in: 92facbc7 user: dan tags: trunk
11:27
Fix a stack overflow that could occur when renaming a table that has a trigger containing a window function invocation that itself contains a specific syntax error. check-in: c621fc66 user: dan tags: trunk
2019-04-28
19:27
Take collating sequence into account when removing redundant columns from indexes on WITHOUT ROWID tables. This is the first proof-of-concept fix for ticket [3182d3879020ef3]. More testing needed. check-in: b34fa5bf user: drh tags: tkt-3182d38790
2019-04-27
20:39
Add the shardvtab virtual table that uses the new cost estimation functions. Leaf check-in: 9404300a user: drh tags: cost-est
20:30
Add the ".recover" command to the shell tool. For recovering as much data as possible from corrupt databases. check-in: 50fe4845 user: dan tags: trunk
20:16
Fix a minor typo in a comment. No changes to code. check-in: 95209072 user: drh tags: trunk
20:15
Fix building the shell with SQLITE_OMIT_VIRTUAL_TABLE. And without SQLITE_ENABLE_DBPAGE_VTAB. Closed-Leaf check-in: 425d708c user: dan tags: dbdata
19:36
Add comments and fix formatting issues in new code in shell.c.in. check-in: b91d819b user: dan tags: dbdata
18:47
Add the "--lost-and-found" option to the ".recover" command. For setting the name of the orphaned rows table. check-in: 67bb88e2 user: dan tags: dbdata
15:35
Fix a problem in the .recover command with recovering WITHOUT ROWID tables where the PK columns are not the leftmost in the CREATE TABLE statement. check-in: 91df4b8e user: dan tags: dbdata
2019-04-26
21:11
Have .recover store all orphaned rows in a single table, with extra columns to indicate the orphaned page and sub-tree they were discovered within. check-in: 7221f6e3 user: dan tags: dbdata
17:20
An experimental interface for retrieving the estimated cost and estimated number of output rows for a query. check-in: 1b25fa10 user: drh tags: cost-est
17:08
Omit tests of the LIKE optimization in like3.test when SQLITE_ENABLE_ICU is defined. check-in: af53c41a user: dan tags: trunk
15:40
Fix another problem with database freelist handling in the ".recover" command. check-in: bee2652a user: dan tags: dbdata
15:14
Fix a locking-page related problem with the ".recover" command. check-in: afdae104 user: dan tags: dbdata
2019-04-25
20:06
Merge latest trunk changes into this branch. check-in: 1da302d8 user: dan tags: dbdata
19:23
Unless the "--freelist-corrupt" option is specified, do not have the .recover command attempt to recover data from pages that are on the database free-list. check-in: 8d2f52bb user: dan tags: dbdata
18:15
Add the sqlite3_hard_heap_limit64() interface and the corresponding "PRAGMA hard_heap_limit=N" command. check-in: b0ccef61 user: drh tags: hard-heap-limit
16:20
Fix a bug preventing .recover from working on databases where the final page of the db is corrupt. check-in: 959bbd11 user: dan tags: dbdata
2019-04-24
20:48
Improve the performance of the .recover command. check-in: a5076831 user: dan tags: dbdata
17:04
New test cases in test/fuzzdata8.db. check-in: 7be6222c user: drh tags: trunk
16:13
Fix another instance in fts3 where a corrupt record can cause a buffer overflow. check-in: e1724f1d user: dan tags: trunk
15:57
Fix a problem in fts5 where a corrupt position list could lead to a buffer overwrite. check-in: 516ca894 user: dan tags: trunk
15:13
Fix an error in fts3_write.c allowing a corrupt database to cause a crash. check-in: 6e4a5f22 user: dan tags: trunk
04:53
Correction to the #if in the previous check-in. check-in: 30dc05ac user: mistachkin tags: trunk
00:37
Fix for 8-byte alignment asserts that can trigger in some circumstances with 32-bit MSVC. check-in: 4c02832e user: mistachkin tags: trunk
2019-04-23
22:00
Make no atttempt to generate VDBE code for VACUUM after a syntax error. check-in: 93084247 user: drh tags: trunk
20:48
Have ".recover" handle "\r" and "\n" in the same way as ".dump". check-in: f95f0f02 user: dan tags: dbdata
18:03
Fixes for the ".recover" shell command. check-in: 8dcc1d89 user: dan tags: dbdata
15:30
Changes to the --hexdb decoder option in the shell (and also in the TCL test code) so that it works on systems where sscanf() does not recognize "%hhx" as wanting to delivery results into a character-size variable. check-in: 4258e42d user: drh tags: trunk
15:21
Minor simplification of NULL value handling for STAT4. Cherrypick of [69bad9257f8db6a2] from trunk. check-in: 442c177d user: mistachkin tags: branch-3.28
15:08
Minor simplification of NULL value handling for STAT4. check-in: 69bad925 user: mistachkin tags: trunk
12:31
New test cases in fuzzdata8.db. check-in: 0fe3c3fd user: drh tags: trunk
12:30
Improvement on the previous check-in. Parse.rc is less reliable than Parse.nErr for detecting SQLITE_TOOBIG errors. check-in: 8d478cfb user: drh tags: trunk
2019-04-22
20:52
Enhance the ".recover" command. Fix a problem with overflow pages in dbdata.c. check-in: f193ca58 user: dan tags: dbdata
20:05
Early detection of SQLITE_TOOBIG when processing nested queries. check-in: 5d85d80e user: drh tags: trunk
11:47
Fix an assert() that may be false for corrupt databases. check-in: b2ce5ed1 user: dan tags: trunk
2019-04-20
20:57
Add the ".recovery" command to the shell tool. For recovering the maximum amount data from corrupt databases. Still needs work. check-in: 7461d2e1 user: dan tags: dbdata
2019-04-19
23:05
Mark a single branch as no longer reachable. check-in: 4f35b3b7 user: drh tags: trunk
22:01
Increase the version number to 3.29 for the next development cycle. check-in: 6cf16703 user: drh tags: trunk
18:10
Mark two branches as unreachable. Oops - one of those branches was reachable via fuzzcheck tests. Closed-Leaf check-in: 9b888fcc user: drh tags: mistake
17:26
Improved optimization of the AND and OR operators. check-in: 0fbd154e user: drh tags: trunk
16:34
Fix a problem with renaming a table that starts with "sqlite". Fix for ticket [f00d7b65]. check-in: a2ead8aa user: dan tags: trunk
16:21
Use macros to determine if an expression is always true or always false. check-in: 6de980a0 user: drh tags: trunk
13:38
Streamline the processing of the AND operator. Slightly smaller and faster. check-in: 7713996a user: drh tags: trunk
2019-04-18
21:14
Add the sqlite_dbptr virtual table to the dbdata extension. For querying the links between b-tree pages. check-in: 3213a15f user: dan tags: dbdata
19:21
Minor simplification of NULL value handling for STAT4. Closed-Leaf check-in: 5718a9d5 user: mistachkin tags: nullStat4
17:37
Undo change to 'analyze9.test' because the extra output can be useful for debugging. Leaf check-in: f3081e59 user: mistachkin tags: msvc
2019-04-17
23:56
Fix a couple minor test issues. check-in: 1f1866d1 user: mistachkin tags: msvc