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100 check-ins occurring around 25975e1fb2be0c01.

2019-03-18
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)
18:07
Merge latest trunk changes into this branch. (check-in: 5c1cf308 user: dan tags: reuse-schema)
17:54
Where possible, avoid loading all schemas into memory for PRAGMA statements. (check-in: 64f97530 user: dan tags: reuse-schema)
16:06
Version 3.27.2 (check-in: bd49a827 user: drh tags: release, branch-3.27, version-3.27.2)
15:55
Internally, remove all references to a Window object that belongs to an expression in an ORDER BY clause if that expression is converted to an alias of a result-set expression. (check-in: a21ffcd8 user: drh tags: branch-3.27)
15:43
This was originally intended to be the 3.27.2 release, but then I realized that I left out an important patch. (Closed-Leaf check-in: 6c5e5e2e user: drh tags: mistake)
14:52
Update comments on the fossildelta extension. No changes to code. (check-in: 9da4fb59 user: drh tags: trunk)
14:25
Fix a typo in the documentation for sqlite3_total_changes(). (check-in: 4febdfb3 user: drh tags: branch-3.27)
14:16
Fix a typo in the documentation for sqlite3_total_changes(). (check-in: 8474c156 user: drh tags: trunk)
2019-02-23
20:48
Fix a couple of assert() statements in fts3 that can be false if the database is corrupt. (check-in: 84162af5 user: dan tags: trunk)
00:56
Import from trunk the new fix to ticket [df46dfb631f75694] in which all ephemeral tables used as the RHS of an IN operator be index btrees and never table btrees so that they can always be reused. (check-in: 0e64ac12 user: drh tags: branch-3.27)
00:21
Check-in [fa792714ae62fa98] is incorrect. Add a test case to refute it and also a fix to make it right. Then add an alternative fix to ticket [df46dfb631f75694] in which all ephemeral tables used as the RHS of an IN operator be index btrees and never table btrees so that they can always be reused. (check-in: d3915230 user: drh tags: trunk)
00:08
Remove a testcase() macro which is now unreachable due to the contraction of the use of IN_INDEX_ROWID. (Closed-Leaf check-in: 90c5a17c user: drh tags: tkt-df46dfb631)
2019-02-22
23:29
Make all ephemeral tables built to hold the RHS of an IN operator be index-btrees, never table-btrees, regardless of whether or not they are used as IN_INDEX_LOOP or IN_INDEX_MEMBERSHIP. That way, the same ephmerial table can be reused for both cases. (check-in: c2d50df8 user: drh tags: tkt-df46dfb631)
21:33
Check-in [fa792714ae62fa980] is not a valid fix for ticket [df46dfb631f75694], as the new test case in this check-in demonstrates. The fix here causes test cases for the [df46dfb631f75694] bug to fail again, so this check-in is on a branch. A new fix is needed for [df46dfb631f75694]. (check-in: 0d456456 user: drh tags: tkt-df46dfb631)
19:24
Internally, remove all references to a Window object that belongs to an expression in an ORDER BY clause if that expression is converted to an alias of a result-set expression. Fix for [4feb3159c6]. (check-in: 579b66ea user: dan tags: trunk)