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100 check-ins occurring around fb90e7189a.

2018-10-08
18:55
Replace the new geopoly_reverse() function with geopoly_ccw(). The geopoly_ccw() function only reverses the vertex order if doing so is necessary to get the correct right-hand winding rule on the polygon. check-in: 07506694 user: drh tags: trunk
12:58
Add the geopoly_reverse() function to the GeoPoly extension. check-in: 690dd18a user: drh tags: trunk
2018-10-06
14:38
Fix the ".help -all" option in the command-line shell. check-in: aac8f1df user: drh tags: trunk
14:33
Ensure each ALTER TABLE statement makes just a single SQLITE_ALTER_TABLE call to the authorizer function. Leaf check-in: dac28547 user: dan tags: alter-auth-callbacks
13:46
Add test cases and assert() statements to ensure that the authorizer is being called as expected from within ALTER TABLE. check-in: ff10d2c7 user: dan tags: trunk
2018-10-05
20:09
When the left-hand side of a WHERE clause contraint is a UNIQUE column, and that term of the WHERE clause is not used for indexing, assume that the term reduces the number of output rows by half. This is one proposed fix for ticket [e8b674241947eb3ba4] Leaf check-in: 5c243eec user: drh tags: unique-constraint-weights
15:10
Changes to geopoly to silience false-positive warnings coming out of clang. check-in: 11d9015f user: drh tags: trunk
2018-10-04
18:17
The 0x8000 optimization flag associated with SQLITE_TESTCTRL_OPTIMIZATIONS causes a large penalty (200) to be added to all sorting costs, which encourages the query planner avoid using the sorter. This flag can be used in experiments to help come up with a more accurate estimate of the true cost of sorting. Leaf check-in: 857a1b01 user: drh tags: query-planner-debug
2018-10-03
18:05
Add an ALWAYS on an unreachable branch in the ALTER TABLE logic. check-in: ebcd4523 user: drh tags: trunk
11:13
Change a type in shell.c.in from "int" to "sqlite3_int64" in order to avoid a compiler warning and possible integer overflow. check-in: bf0a6634 user: dan tags: trunk
2018-10-02
20:16
Add an additional assert() verifying mutex invariants on the unixShmSystemLock() routine in the unix VFS. check-in: cb151106 user: drh tags: trunk
19:58
Additional field name changes and commit fixes associated with shared-memory locking in the unix VFS, to improve maintainability. No logic changes. check-in: 9280774a user: drh tags: trunk
19:36
Fix comments and refactor some names associated with shared-memory locking in the Unix VFS. No logical changes. check-in: 3e9f1635 user: drh tags: trunk
2018-10-01
21:41
Add the "PRAGMA table_xinfo" command that works like table_info but also shows hidden columns in virtual tables and adds the "hidden" boolean column. check-in: defa0515 user: drh tags: trunk
21:36
Test case for PRAGMA table_xinfo. Closed-Leaf check-in: 7694b9bc user: drh tags: pragma-table-vinfo
21:26
Change the name of the pragma to PRAGMA table_xinfo. Improve the mkpragmatab.tcl script to reuse column names where appropriate. check-in: 2fdd0689 user: drh tags: pragma-table-vinfo
18:28
Add the extra "hidden" column to the end of the PRAGMA table_vinfo output. check-in: cf1b7613 user: drh tags: pragma-table-vinfo
17:33
Speed up xAccess() calls made on an RBU VFS when there are lots of open connections. check-in: 310b4b65 user: dan tags: trunk
17:15
Bring the PRAGMA table_vinfo statement up to date with trunk. check-in: 6f606f99 user: drh tags: pragma-table-vinfo
14:05
Fix a potential crash that can occur while reading an index from a corrupt database file. The corruption is a record-header-size that is larger than 0x7fffffff. Problem detected by OSSFuzz against GDAL and reported to us (with a suggested fix) by Even Rouault. The test case is in TH3. check-in: 5d291658 user: drh tags: branch-3.25
13:54
Fix a potential crash that can occur while reading an index from a corrupt database file. The corruption is a record-header-size that is larger than 0x7fffffff. Problem detected by OSSFuzz against GDAL and reported to us (with a suggested fix) by Even Rouault. The test case is in TH3. check-in: 8ac2cdda user: drh tags: trunk
11:00
Ensure that the OP_VColumn opcode does set sqlite3_vtab_nochange() unless the OPFLAG_NOCHNG bit is set in P5. Fix for ticket [69d642332d25aa3b7315a6d385] check-in: 31ac8dba user: drh tags: branch-3.25
07:04
Fix a problem with ALTER TABLE commands when the schema features an INSTEAD of trigger that uses NEW.* or OLD.*. check-in: c52f457e user: dan tags: trunk
2018-09-29
19:38
Add the PRAGMA table_vinfo command (with an extra "v" before "info") that works like PRAGMA table_info (without the "v") except that it also shows hidden columns on virtual tables. check-in: 8bcd1a59 user: drh tags: pragma-table-vinfo
2018-09-28
23:53
Fix test cases so that they work with ICU. check-in: d04b2013 user: drh tags: trunk
21:11
Merge latest begin-concurrent changes into this branch. check-in: 6f3dd980 user: dan tags: begin-concurrent-pnu
20:58
Merge latest trunk into this branch. check-in: 86750c92 user: dan tags: begin-concurrent
20:46
Have sqlite3changegroup_output_strm() call its output function more regularly. check-in: 8467c31a user: dan tags: trunk
18:51
Fix a bug in the sqlite_memstat virtual table that was causing it to report the amount of memory used as zero bytes. check-in: 8a758a87 user: drh tags: trunk
14:01
Add the geopoly_regular(X,Y,R,N) function to the geopoly extension. check-in: 4505bbae user: drh tags: trunk
13:18
Make most geopoly functions pure. check-in: 944e167a user: drh tags: trunk
00:16
Rig geopoly to use sqlite3AtoF() if it is available, as that routine is much faster than atof(). check-in: 470c6c07 user: drh tags: trunk
2018-09-27
23:57
Small performance optimization in the JSON parser of Geopoly. check-in: fb520e71 user: drh tags: trunk
20:37
Enhance the GeoPOLY extension so that it always stores its polygons in the binary format, which is faster and more compact. check-in: dc35f7b1 user: drh tags: trunk
20:20
Ensure that the OP_VColumn opcode does set sqlite3_vtab_nochange() unless the OPFLAG_NOCHNG bit is set in P5. Fix for ticket [69d642332d25aa3b7315a6d385] check-in: 322ab1fc user: drh tags: trunk
17:33
Another minor tweak to memstat.c so that it may be built against older versions of SQLite. check-in: 4c1fed60 user: dan tags: trunk
17:15
Modify the memstat virtual table so that it works with SQLite version 3.9.2. check-in: 7171d8ae user: drh tags: trunk
17:03
Add the sqlite_memstat extension - an eponymous virtual table that shows memory usages statistics for SQLite. check-in: 954ef61f user: drh tags: trunk
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