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100 check-ins occurring around 2ac9003de4.

2018-09-27
16:57
Enhancements to sqlite_memstat: (1) Add an extra "schema" column to show the schema name for ZIPVFS stats. (2) Only show ZIPVFS stats to schema that use ZIPVFS (3) Put a NULL in unused columns of the output. Closed-Leaf check-in: 9351135b user: drh tags: memstat-vtab
15:45
Add initial ZIPVFS support for the "main" database to the sqlite_memstat virtual table. check-in: 9cd27350 user: drh tags: memstat-vtab
15:21
Initial prototype of a eponymous virtual table that accesses sqlite3_status64() and sqlite3_db_status(). check-in: 0b44e1f6 user: drh tags: memstat-vtab
14:24
Minor enhancement to the pager so that it remembers if the underlying database files is immutable. Leaf check-in: 64db614e user: drh tags: immutable-pager
13:10
Disallow the use of window functions in the recursive part of a recursive CTE. Fix for ticket [e8275b415a2f03bee]. check-in: b2849570 user: drh tags: branch-3.25
12:14
Disallow the use of window functions in the recursive part of a recursive CTE. Fix for ticket [e8275b415a2f03bee]. check-in: 7fc29944 user: dan tags: trunk
00:04
Minor simplification: In OP_ParseSchema, read the p1 register once. check-in: bd250533 user: mistachkin tags: trunk
2018-09-26
18:02
Further improvements to the ".help" command in the CLI. check-in: edc3d18e user: drh tags: trunk
16:53
Begin revamping the ".help" command in the command-line shell so that it can accept an argument and will do a search for commands that match that argument. check-in: 209afb8d user: drh tags: trunk
16:05
Tweak spellfix.c so that if SQLITE_SPELLFIX_5BYTE_MAPPINGS is defined at compile time the Transliteration structure has space for 5 byte (instead of 4 byte) mappings. check-in: cbaf5b6c user: dan tags: trunk
03:43
Fix typos in the header comment for the sha1 and sha3 hash extensions in the ext/misc folder. check-in: 4ed9d83a user: drh tags: trunk
2018-09-25
19:08
Version 3.25.2 check-in: fb90e718 user: drh tags: release, branch-3.25, version-3.25.2
13:52
Fix a problem in releasetest.tcl causing configuration "Fast-One" to fail. check-in: 32ac0014 user: dan tags: branch-3.25
13:51
Fix a problem in releasetest.tcl causing configuration "Fast-One" to fail. check-in: 42e04fef user: dan tags: trunk
01:38
Bump the version number to 3.25.2. check-in: 996d74f5 user: drh tags: branch-3.25
01:35
Fix a compilation issue in the "userauth" extension. Also fix a few test script errors that occur with SQLITE_USER_AUTHENTICATION=1 builds. check-in: e7db5f59 user: drh tags: branch-3.25
01:17
Fix a problem building on Android with SQLITE_ENABLE_BATCH_ATOMIC_WRITE set. check-in: b9ffa77c user: drh tags: branch-3.25
2018-09-24
21:07
Avoid incrementing the SQLITE_LOOKASIDE_MISS_SIZE stat before sqlite3_open() returns. Fix test script problem in lookaside.test. check-in: 3bd94e43 user: drh tags: branch-3.25
20:50
Fix missing space in 'configure.ac' reported on the mailing list. check-in: 4407e15a user: drh tags: branch-3.25
20:48
Add the "PRAGMA legacy_alter_table=ON" command to enable the pre-3.25.0 behavior of ALTER TABLE that does not modify the bodies of triggers or views or the WHERE clause of a partial index. Enable the legacy behavior by default when running the xRename method of virtual tables. check-in: 31dc8b19 user: drh tags: branch-3.25
19:41
Allow a writable virtual table to have a schema with an INTEGER PRIMARY KEY and WITHOUT ROWID. This fixes ticket [f25d5ceebe1d710ff61a571e395356869d8272ef]. Test case in TH3. check-in: 3139af99 user: drh tags: branch-3.25
19:32
Fix a faulty assert() in the validation logic for the LEFT JOIN strength reduction optimization. Problem found by OSSFuzz. check-in: 8694c3d5 user: drh tags: branch-3.25
19:21
Fix the "sqlite3" command in the TCL interface so that it correctly returns an error if invoked with no arguments. check-in: 8a82fcf0 user: drh tags: branch-3.25
18:29
Fix a problem with views that use window functions as part of complex expressions. check-in: 1c0ecbbd user: drh tags: branch-3.25
15:39
Slightly smaller and faster alternative to [507d892c3a40a0bacbd47] that fixes a problem with views that use window function as part of complex expressions. check-in: d7c816ae user: drh tags: trunk
14:51
Fix a problem with views that use window functions as part of complex expressions. check-in: 507d892c user: dan tags: trunk
14:10
Allow a writable virtual table to have a schema with an INTEGER PRIMARY KEY and WITHOUT ROWID. This fixes ticket [f25d5ceebe1d710ff61a571e395356869d8272ef]. Test case in TH3. check-in: 5a38d928 user: drh tags: trunk
12:37
Use compile-time options SQLITE_QUERY_PLANNER_LIMIT and SQLITE_QUERY_PLANNER_LIMIT_INCR to control the value for WhereLoopBuilder.iPlanLimit, rather than embedding magic numbers in the code. check-in: 903e5018 user: drh tags: trunk
10:47
Increase the initial value of WhereLoopBuilder.iPlanLimit to 20K. Issue a warning if the iPlanLimit reaches zero. check-in: 3dd35f51 user: drh tags: trunk
2018-09-23
02:01
Fix a faulty assert() in the validation logic for the LEFT JOIN strength reduction optimization. Problem found by OSSFuzz. check-in: 2fd62fcc user: drh tags: trunk
2018-09-22
15:05
Enhance WhereLoopBuilder.iPlanLimit to handle a case involving the OR optimization discovered overnight by OSSFuzz. check-in: 7b59930a user: drh tags: trunk
2018-09-21
23:41
Fix harmless compiler warning when compiled with SQLITE_OMIT_AUTHORIZATION. check-in: 50f2fa19 user: mistachkin tags: trunk
19:06
Comment typo fixed. No code changes. check-in: 7e68cdab user: drh tags: trunk
18:43
Put a limit counter on the query planner that restricts the number of index+constraint options that can be considered for each table in a join. This prevents certain pathological queries from taking up too much time in the query planner. check-in: 8690b5a0 user: drh tags: trunk
13:07
Optimization to the OP_MakeRecord opcode makes speed-check.sh run about 1.1 million cycles faster, and results in a slightly smaller library. check-in: d10e6362 user: drh tags: trunk
2018-09-20
20:43
Minor code simplification. check-in: 22ae8a52 user: drh tags: trunk
20:15
Add the "PRAGMA legacy_alter_table=ON" command to enable the pre-3.25.0 behavior of ALTER TABLE that does not modify the bodies of triggers or views or the WHERE clause of a partial index. Enable the legacy behavior by default when running the xRename method of virtual tables. check-in: 7edd26ed user: drh tags: trunk
19:02
Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer. This reduces the size of the Expr object by 8 bytes, reduces the overall amount of code, and shaves over 1 million cycles off of the speed test. check-in: ad130bb8 user: drh tags: trunk
17:21
By default, make all "ALTER TABLE RENAME" statements executed within a virtual table xRename() method exhibit the legacy behaviour. Closed-Leaf check-in: 71947337 user: dan tags: legacy-alter-table
08:28
Add a PRAGMA that restores the legacy ALTER TABLE RENAME TO behaviour. check-in: 5acad2e9 user: dan tags: legacy-alter-table
2018-09-19
20:14
Reduce the size of Expr to 64-bytes. This works somewhat, but there are test failures. More importantly, the size reduction from 80- to 64-bytes has not lowered the schema memory usage, but it has made the code a little bigger and a little slower. So the initial evidence is that this Expr refactoring experiment is not working... Leaf check-in: 24b0f66a user: drh tags: expr-simplify
18:17
A minor code simplification, saved in a branch for future reference. Leaf check-in: 5e458f4a user: drh tags: minor-altertab-simplification
17:24
Fix an issue in virtual table handling associated with the new Expr.x.pRight field. check-in: 8487f84a user: drh tags: expr-simplify
17:09
Fix a compilation issue in the "userauth" extension. Also fix a few test script errors that occur with SQLITE_USER_AUTHENTICATION=1 builds. check-in: 221f3f57 user: dan tags: trunk
16:35
Make sure Expr.eX changes back to EX_None after Expr.x.pRight is set to NULL due to an OOM. check-in: e4129cd3 user: drh tags: expr-simplify
15:08
Fix the "sqlite3" command in the TCL interface so that it correctly returns an error if invoked with no arguments. check-in: 2034fa80 user: drh tags: trunk
14:54
Reduce the size of Expr from 80 to 72 bytes moving the pRight field inside the "x" union. This is an incremental check-in that still has issues. check-in: 147c61a6 user: drh tags: expr-simplify
11:59
Make sure temporary Expr objects are fully initialized prior to sending them into sqlite3ExprCodeTemp(). check-in: de02a1d9 user: drh tags: expr-simplify
2018-09-18
21:35
In the Expr object, the Expr.eX field determines what value is stored in the Expr.x union. This mostly works, but there are issues identified by valgrind. check-in: 8849a463 user: drh tags: expr-simplify
20:20
Version 3.25.1 check-in: 2ac9003d user: drh tags: release, branch-3.25, version-3.25.1
19:40
Fix a problem building on Android with SQLITE_ENABLE_BATCH_ATOMIC_WRITE set. check-in: e41e50fe user: dan tags: trunk
18:08
Merge all recent trunk enhancements. check-in: 655f0654 user: drh tags: expr-simplify
17:50
Avoid incrementing the SQLITE_LOOKASIDE_MISS_SIZE stat before sqlite3_open() returns. Fix test script problem in lookaside.test. check-in: e461cb28 user: dan tags: trunk
17:00
Enhance tester.tcl so that when "--malloctrace=1" is specified, the test generates self-contained Tcl scripts that present GUIs instead of *.sql files that require a separate program to interpret. check-in: de2e3cbd user: dan tags: trunk
16:06
Minor improvements to the permutations.test script. Most notably, a command like "permutations.test alter%" now runs all test scripts with names that match the LIKE pattern "alter%". Or, say, "permutations wal alter%" to run all alter% tests in wal mode. check-in: 3e1a2f66 user: dan tags: trunk
2018-09-17
20:47
Further optimizations to the UPDATE logic to avoid making changes to partial indexes if none of the columns mentioned in the WHERE clause are modified by the UPDATE. check-in: d1365a5b user: drh tags: trunk
15:25
Disable the ORDER BY LIMIT optimization in queries using window functions. This fixes a problem that was introduced by check-in [206720129ed2fa8875a286] which attempted to fix ticket [9936b2fa443fec03ff25f9]. This changes is a fix for the follow-in tocket [510cde277783b5fb5de628]. check-in: 36c75fd5 user: drh tags: branch-3.25
15:19
Disable the ORDER BY LIMIT optimization in queries using window functions. This fixes a problem that was introduced by check-in [206720129ed2fa8875a286] which attempted to fix ticket [9936b2fa443fec03ff25f9]. This changes is a fix for the follow-in tocket [510cde277783b5fb5de628]. check-in: c6c9585f user: drh tags: trunk
14:18
Fix a false-positive in the post-ALTER-TABLE schema verification logic that prevents ALTER TABLE from working if the table being altered has a trigger that references any column of a virtual table. Ticket [b41031ea2b537237]. check-in: 5ce568c0 user: drh tags: branch-3.25
14:13
Fix a false-positive in the post-ALTER-TABLE schema verification logic that prevents ALTER TABLE from working if the table being altered has a trigger that references any column of a virtual table. Ticket [b41031ea2b537237]. check-in: 84105ea4 user: drh tags: trunk
13:55
Restore an assert() that was present on trunk. Closed-Leaf check-in: a7b572ca user: drh tags: tkt-b41031ea
13:38
Minor modification to the fix on this branch to avoid adding extra conditional compilation macros. check-in: 4d8be404 user: dan tags: tkt-b41031ea
12:49
Fix missing space in 'configure.ac' reported on the mailing list. check-in: 96b00a3c user: mistachkin tags: trunk
11:36
Increase the version number to 3.25.1. check-in: f3c8cfdb user: drh tags: branch-3.25
08:27
Add extra test for the fix on this branch. Also fix a pointer-compare-after-free problem that occurs in similar cases. check-in: 1856ea63 user: dan tags: tkt-b41031ea
00:15
Add assert()s to the new code in the previous check-in. check-in: b12f23a5 user: drh tags: tkt-b41031ea
2018-09-16
23:27
First proposed fix for the ALTER TABLE problem described by ticket [b41031ea2b5372378cb3d2d] check-in: 05a9d129 user: drh tags: tkt-b41031ea
18:23
Remove an unreachable branch from the index-on-expression optimization. check-in: 2df2cf4f user: drh tags: trunk
16:34
Fix a memory leak in the explain extension. check-in: d0c92b04 user: drh tags: trunk
16:18
Add the new "explain" virtual table in ext/misc. Use this virtual table for additional test cases for the optimization that avoids updating indexes on expressions when none of the columns changed by the UPDATE are in the expression. check-in: 2404304c user: drh tags: trunk
15:01
Improved presentation on the new code that prevents unnecessary writes to expressions on indexes during an UPDATE when the expression does not reference any of the columns that are changing. check-in: c9f04529 user: drh tags: trunk
2018-09-15
21:43
Increase the version number to 3.26.0 as we start the next development cycle. check-in: 885f0f82 user: drh tags: trunk
21:38
Optimization: when doing an UPDATE on a table with indexes on an expression, do not update the expression indexes if they do not refer to any of the columns of the table being updated. check-in: a71b1016 user: drh tags: trunk
04:01
Version 3.25.0 check-in: b63af6c3 user: drh tags: trunk, release, version-3.25.0
2018-09-14
17:42
Fix minor typos in comments that get carried over into documentation. No changes to code. check-in: 7921dd91 user: drh tags: trunk
2018-09-13
17:11
Update releasetest.tcl to run "make test" as part of the "Fast-One" configuration. check-in: d5ebfe1c user: dan tags: trunk
17:07
Make sure the %z optimization for printf() is not invoked if there has been a prior error (SQLITE_NOMEM or SQLITE_TOOBIG) associated with the same printf() call. check-in: a2304a34 user: drh tags: trunk
13:17
Fix a requirement mark on a test script. No changes to code. check-in: 628d5c0a user: drh tags: trunk
2018-09-12
20:32
Fix an assert() in os_unix.c that is not true when using RBU. check-in: 028ed861 user: dan tags: trunk
15:51
Restrict the scope of internal-use functions in alter.c. check-in: 4396914f user: drh tags: trunk
14:28
Improvements to the documentation for SQLITE_FCNTL_DATA_VERSION. No changes to code. check-in: 27837624 user: drh tags: trunk
08:51
Fix an invalid pointer comparison triggered by renaming a table column when there are views with explicit column names in the schema. check-in: 572de7e4 user: dan tags: trunk
01:05
Fix some harmless compiler warnings seen with MSVC. check-in: 78862252 user: mistachkin tags: trunk
00:48
For MSVC, migrate some commonly used shell compilation options to the library. check-in: 68a71e5f user: mistachkin tags: trunk
00:21
Fix a harmless compiler warning that arose from the ENABLE_CURSOR_HINTS fix of check-in [0af18674ca5b34e67e] check-in: f578e62a user: drh tags: trunk
2018-09-11
19:05
Do not do the byte-by-byte modifications in the resetdb.test script if the reserved-byte flag in the DB header is non-zero, because in that case the bytes will be in the wrong place and the test won't work. check-in: 0af18674 user: drh tags: trunk
13:38
Fix a problem causing ENABLE_CURSOR_HINTS builds to segfault. check-in: e7033104 user: dan tags: trunk
2018-09-10
19:34
Fix a test script issue in fts3ao.test. check-in: 74c381b5 user: dan tags: trunk
19:27
Fix a minor problem causing an incorrect cursor-hint to be generated in some cases. check-in: d879c47d user: dan tags: trunk
17:21
Add the ability for loadable extensions to access the new sqlite3_create_window_function() interface. check-in: 3def6d8e user: drh tags: trunk
16:38
Fix a broken assert() in fts3.c. check-in: 564fa751 user: dan tags: trunk
14:43
New testcase() macros on virtual table xBestIndex logic. check-in: 3bbd9c5f user: drh tags: trunk
12:40
Fix the LIKE optimization so that it is disabled when the LHS of the expression does not have TEXT affinity and the RHS is the pattern '/%' or the RHS begins with the escape character. Fix for ticket [c94369cae9b561b1f996d0054b]. check-in: f191431d user: drh tags: trunk
12:17
Fix a problem with processing a "vtab.col IS NULL" expression within the WHERE clause of a query when "vtab" is a virtual table on the rhs of a LEFT JOIN. check-in: 83da4d41 user: dan tags: trunk
2018-09-08
20:29
Fix an unreachable branch in the new sqlite3WhereOrderByLimitOptLabel() function of the query planner. check-in: 5a954533 user: drh tags: trunk
20:09
Fix multiple issues with the ORDER BY LIMIT optimization. This is the proposed resolution to ticket [9936b2fa443fec03ff25]. check-in: 20672012 user: drh tags: trunk
16:55
Add a missing call to free() in Lemon. check-in: 8b4cf33a user: mistachkin tags: trunk
16:53
Fix typo in the Win32-specific code for the fileio extension. check-in: e812e5d5 user: mistachkin tags: trunk
2018-09-07
19:12
Remove a faulty ALWAYS() macro added by check-in [8fa254aa6329bdd0]. check-in: fc47316e user: drh tags: trunk
18:56
Add extra test case to altertab.test. check-in: 64c3ee3c user: dan tags: trunk