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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 3712d625d625f962.

2019-03-19
20:42
Enhance the VACUUM INTO command so that it works on read-only databases. check-in: 55be6d0a user: drh tags: trunk
20:13
Fix a compiler warning in FTS5. check-in: d5acf3af user: drh tags: trunk
19:39
Add further tests to window8.test. check-in: ec7e224f user: dan tags: window-functions
19:19
Fix a problem with EXCLUDE clauses on window frames with no ORDER BY. check-in: e0255063 user: dan tags: window-functions
17:45
Add tests to ensure that the window functions implementation is not generating code for unnecessary sorts. check-in: e195948a user: dan tags: window-functions
16:49
Add missing VdbeCoverage() macros to new code in window.c. check-in: 4f9b93e6 user: dan tags: window-functions
15:36
When computing the amount of scratch memory needed during a rebalance operation, assume the worst case for the number of cells per page, rather than relying on the BtPage.nCell value, which might be incorrect for a corrupt database. check-in: a420ebd0 user: drh tags: trunk
11:56
Revert the OP_MustBeInt opcode implementation on this branch so that it again matches trunk. The extra functionality is no longer required. check-in: c02f77b1 user: dan tags: window-functions
11:35
Tweak the tool/cg_anno.tcl script so that it can run on systems without /usr/bin/tclsh. check-in: a026189a user: dan tags: trunk
11:17
Update this branch with latest trunk changes. check-in: 98cc2659 user: dan tags: window-functions
09:57
Add a LICENSE.md, containing the text of the blessing. check-in: cbb7e602 user: drh tags: trunk
06:40
Ensure that all the new window-function keywords can still be used as SQL identifiers. check-in: a6d61dfd user: dan tags: window-functions
2019-03-18
21:19
Add further tests for new window function functionality. check-in: 1fbddf01 user: dan tags: window-functions
18:55
Always evaluate window functions using the alternative path usually only used by EXCLUDE frames if the SQLITE_QueryFlattener test flag is set. check-in: 2879a691 user: dan tags: window-functions
16:51
Fixes for RANGE windows and NULL values. check-in: 723c84be user: dan tags: window-functions
15:49
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. check-in: b3fa58dd user: dan tags: trunk
15:23
Fix an fts5 problem with interleaving reads and writes in a single transaction. check-in: 45c73deb user: dan tags: trunk
10:30
Fix a typo in a comment. No changes to code. check-in: c2f50aa4 user: drh tags: trunk
2019-03-17
23:59
New hyperlink on the README.md file. check-in: cc5ab967 user: drh tags: trunk
23:44
Update the README.md file at the top level to talk about how to deal with version names and how to verify the code in Git mirrors. check-in: e8c87a0a user: drh tags: trunk
2019-03-16
20:29
Fix problems with RANGE windows and string, blob and NULL values. check-in: cebe09e1 user: dan tags: window-functions
10:15
In order to identify the first row of each partition, check if the rowid in the ephemeral table is 1 instead of using a dedicated flag register. check-in: f2d5f7a2 user: dan tags: window-functions
2019-03-15
20:46
Implement the EXCLUDE clause for window frames. check-in: 9b43c3ee user: dan tags: window-functions
19:08
Back out the change to support Fuchsia, since it turns out fuchsia does not like dot-file locks. check-in: 1d801a3b user: drh tags: trunk
18:57
Remove a debugging printf() left in test/sessionfuzz.c. check-in: 73c4abc9 user: dan tags: trunk
16:17
Ensure that ALTER TABLE commands open statement transactions. Fix for [596d059a]. check-in: 0f2129f5 user: dan tags: trunk
2019-03-14
20:53
Parse EXCLUDE clauses in window frames. They do not yet work. check-in: d03c7533 user: dan tags: window-functions
16:36
Add things to this branch that will be required to support the EXCLUDE clause. check-in: 7d66cd20 user: dan tags: window-functions
00:01
Technical improvements to the documentation for sqlite3_bind_blob() and sqlite3_bind_text(). No changes to code. check-in: fb60150a user: drh tags: trunk
2019-03-13
23:51
Improvements to the sqlite3_db_filename() API documentation. No code changes. check-in: 711f5ec4 user: drh tags: trunk
17:31
Merge latest trunk changes into this branch. check-in: 0b904517 user: dan tags: window-functions
17:20
Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions. check-in: 180be266 user: dan tags: window-functions
15:29
Remove rows from the ephemeral table used by window functions once they are no longer required. check-in: 6ad55319 user: dan tags: window-functions
13:19
New test cases added to test/fuzzdata8.db check-in: 049e9926 user: drh tags: trunk
11:40
When deserializing a database (sqlite3_deserialize()), do not attempt to parse the schema before the data is loaded. check-in: 4e1b005e user: dan tags: trunk
10:29
Detect zero-length free slots on btree pages and report that as corruption. check-in: c4f0568f user: drh tags: trunk
08:28
Minor optimization in sqlite3WindowCodeStep(). check-in: b1322ffb user: dan tags: window-functions
2019-03-12
18:28
Allow real values to be used in PRECEDING and FOLLOWING expressions for RANGE window frames. check-in: 25ff7091 user: dan tags: window-functions
15:21
Expand on header comment for sqlite3WindowCodeStep(). Further simplify the implementation of the same. check-in: 5129bcc9 user: dan tags: window-functions
09:49
Fix a crash that could occur if the RHS of an IN expression is a correlated sub-query that refers to the outer query from within a window frame definition only. check-in: 0524aaaf user: dan tags: trunk
2019-03-11
19:50
Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself. check-in: 08126353 user: dan tags: window-functions
18:17
Simplify the windows frame code some. Add a comment explaining some of the VM code generated by sqlite3WindowCodeStep(). check-in: 6bd1a079 user: dan tags: window-functions
11:12
Fix problems with "RANGE ... ORDER BY <expr> DESC" window frames. check-in: e7bced73 user: dan tags: window-functions
2019-03-09
20:49
Add support for RANGE window frames. Some cases still do not work. check-in: ffc32b24 user: dan tags: window-functions
07:38
Merge latest trunk changes into this branch. check-in: 53ea550c user: dan tags: window-functions
2019-03-08
20:57
Add simple tests for GROUPS window frames. check-in: 2872702d user: dan tags: window-functions
20:26
Fix a harmless bug in the Makefile. check-in: 62ac9cb0 user: drh tags: trunk
20:02
Finish consolidation of window frame code. Add untested support for GROUPS frames. check-in: 954bf369 user: dan tags: window-functions
16:06
Merge the latest enhancements and fixes from trunk. check-in: 543ecb30 user: drh tags: begin-concurrent-pnu-wal2
15:57
Merge the latest enhancements and fixes from trunk. check-in: bf20d4ff user: drh tags: wal2
15:39
Add the bgckpt.c extension to Makefile.in and Makefile.msc. check-in: 3712d625 user: drh tags: wal2
15:30
Merge all the latest enhancements from trunk. check-in: 667cce3d user: drh tags: begin-concurrent-pnu
14:07
Add new test cases in test/fuzzdata8.db check-in: 97bdc090 user: drh tags: trunk
14:02
Patch makes balance_nonroot() slightly smaller and faster and more robust against corrupt databases. check-in: 174da3c3 user: drh tags: trunk
13:27
Fix another segfault in fts3 that could occur with corrupt records. check-in: fcc24edd user: dan tags: trunk
01:52
Detect an attempt to drop a btree that is not within the bounds of the database file and abort early with an SQLITE_CORRUPT error, to avoid problems later on in the process. check-in: 235a9698 user: drh tags: trunk
2019-03-07
20:47
Fix other "ROWS BETWEEN" cases on this branch. check-in: a5f68f66 user: dan tags: window-functions
19:26
Modify new window functions function so that cursors are stepped immediately after each operation, instead of immediately before. check-in: 093d2b25 user: dan tags: window-functions
2019-03-06
21:04
Simplify the window function code generator some more. check-in: 45cbd3b4 user: dan tags: window-functions
17:12
Improvements to the way built-in window functions are handled. check-in: e8eee566 user: dan tags: window-functions
14:53
Add the sqlite3_stmt_isexplain() interface. check-in: ee642d3e user: drh tags: trunk
14:08
Add an "|| CORRUPT_DB" term to an assert() that might be false if the database is corrupt. Also add a branch to have sqlite3PagerMovepage() return SQLITE_CORRUPT in that case. check-in: b0d5cf40 user: drh tags: trunk
2019-03-05
23:49
Fix a potential 32-bit integer overflow in the "showdb" utility program when it is trying to interpret a corrupt database file. check-in: 3803e750 user: drh tags: trunk
19:29
Extend windowCodeStep() to handle any ROWS PRECEDING/FOLLOWING frame specification. check-in: af0ea136 user: dan tags: window-functions
16:53
Add a script to tool/ that will extract the sqlite3.h header file from an sqlite3.c amalgamation. check-in: 38d2e510 user: drh tags: trunk
14:47
New dbfuzz2 test cases added to test/fuzzdata7.db check-in: 25975e1f user: drh tags: trunk
14:39
If the initial byte of a record is a large value, then always used the generalized record comparison routine sqlite3VdbeRecordCompare() rather than one of the specialized versions that are optimized for shorter records. check-in: c1ac0070 user: drh tags: trunk
2019-03-04
21:08
Merge trunk changes into this branch. check-in: 9b4d561f user: dan tags: window-functions
21:07
Support some "ROWS BETWEEN N PRECEDING AND M FOLLOWING" window functions without caching entire partitions. check-in: e7a91f12 user: dan tags: window-functions
07:25
Merge latest trunk changes into this branch. check-in: 97a9604d user: dan tags: reuse-schema
07:15
Fix a problem preventing compilation with SQLITE_OMIT_UTF16. check-in: 906d1fd8 user: dan tags: trunk
2019-03-02
20:09
Improved comments on the fossildelta.c extension. check-in: d7d23f04 user: drh tags: trunk
15:25
Fix the SQLITE_DIRECT_OVERFLOW_READ compile-time option so that it works with SQLITE_HAS_CODEC. check-in: fd085e92 user: drh tags: trunk
12:17
Remove a redundant parameter extraction call from the percentile.c extension. check-in: d49c32e6 user: drh tags: trunk
2019-03-01
21:37
Merge recent changes from trunk. check-in: f270245a user: drh tags: apple-osx
21:33
The fts3_tokenizer() function returns NULL if the SQLITE_DBCONFIG_ENABLE_FTS_TOKENIZER setting is disabled, which is is by default. check-in: f5732f4c user: drh tags: trunk
21:12
Fix a minor comment typo. No code changes. check-in: 9a0a93c8 user: drh tags: trunk
18:27
Merge the latest enhancements from trunk. check-in: e64ded7b user: drh tags: apple-osx
18:07
In a query that uses a partial index, the expression that is the WHERE clause of the partial index must always be true. Use this fact to avoid evaluating identical terms in the WHERE clause of the query. check-in: 9b287962 user: drh tags: trunk
2019-02-28
20:10
Add the ".parameter" command to the CLI. check-in: 1f9fa585 user: drh tags: trunk
17:29
Add the new "bind_fallback" method to the "sqlite3" object in the TCL interface. check-in: c7f70b6d user: drh tags: trunk
14:09
New test case loaded into test/fuzzdata8.db. check-in: 00ae0c6c user: drh tags: trunk
13:41
Avoid an assert() failure and an undefined left-shift operation in the fts3 snippet() function that could occur if the database was corrupt. check-in: d5250db6 user: dan tags: trunk
13:21
Add an "|| CORRUPT_DB" term to an assert() statement in the btree defragmenter. check-in: 6bfd8655 user: drh tags: trunk
2019-02-27
23:05
Enable the LIKE optimization when the ESCAPE keyword is present and the PRAGMA case_sensitive_like pragma is ON. check-in: 6ae4b8c5 user: drh tags: trunk
19:59
Fix the readfile() UDF so that it returns an empty BLOB, not an OOM error, when reading an empty file. check-in: 0edad533 user: drh tags: trunk
16:38
Add the "-returntype" option to the "db function" Tcl method. check-in: 789a492b user: dan tags: trunk
15:26
Verify that fts5 auxiliary functions cannot be used in aggregate queries. check-in: 122330db user: dan tags: trunk
2019-02-26
19:16
Reformat the white-space in a few test cases so that the tests work with Tcl 8.6.9. check-in: 29d02bf2 user: dan tags: trunk
18:21
Minor change to dbfuzz2 that allows it to be compiled against older versions of SQLite. check-in: 6d39d6a6 user: drh tags: trunk
17:52
New test cases added to test/fuzzdata8.db. check-in: 61fdfc57 user: drh tags: trunk
17:49
Allocate a few extra bytes for the pager temp page as an overrun buffer while processing corrupt database files. check-in: e7aca071 user: drh tags: trunk
16:36
Update doc/shared_schema.md to describe the shell tool ".shared-schema" dot-command. check-in: 0ce2092a user: dan tags: reuse-schema
16:17
Use unsigned integers to count the number of pages in a freelist during an integrity_check, to avoid any possibility of a signed integer overflow. check-in: 05b87e07 user: drh tags: trunk
16:13
Add new test file reuse5.test. For testing the shell tool ".shared-schema" command. check-in: fa6008d5 user: dan tags: reuse-schema
16:11
Fix a harmless compiler warning that only comes up during debug builds. check-in: 848869ce user: drh tags: trunk
15:43
Add the ".shared-schema check|fix DB1 DB2..." command to the shell tool. For checking if a database is eligible to share an in-memory with the main database, and for fixing small problems that prevent it from being so. check-in: 7d8e8a95 user: dan tags: reuse-schema
12:29
Update the configure-generated makekfile to generate a portable pkgIndex.tcl. check-in: 35cbee7f user: drh tags: trunk
2019-02-25
19:23
Fix a comment in build.c. check-in: d6a9bff6 user: dan tags: reuse-schema
18:43
Enhance the command-line shell to accept bound parameters, using the TEMP table named "$Parameters" to look up the values for bound parameters. check-in: 7c941ce5 user: drh tags: trunk